diff options
Diffstat (limited to 'src/libnm-systemd-core')
30 files changed, 1925 insertions, 1834 deletions
diff --git a/src/libnm-systemd-core/meson.build b/src/libnm-systemd-core/meson.build index 1fa94486..80b95c42 100644 --- a/src/libnm-systemd-core/meson.build +++ b/src/libnm-systemd-core/meson.build @@ -10,6 +10,7 @@ libnm_systemd_core = static_library( 'src/libsystemd-network/dhcp-packet.c', 'src/libsystemd-network/dhcp6-network.c', 'src/libsystemd-network/dhcp6-option.c', + 'src/libsystemd-network/dhcp6-protocol.c', 'src/libsystemd-network/lldp-neighbor.c', 'src/libsystemd-network/lldp-network.c', 'src/libsystemd-network/network-common.c', diff --git a/src/libnm-systemd-core/nm-sd-utils-dhcp.c b/src/libnm-systemd-core/nm-sd-utils-dhcp.c index 7fe889fd..13c75055 100644 --- a/src/libnm-systemd-core/nm-sd-utils-dhcp.c +++ b/src/libnm-systemd-core/nm-sd-utils-dhcp.c @@ -13,8 +13,7 @@ int nm_sd_dhcp_lease_get_private_options(sd_dhcp_lease *lease, nm_sd_dhcp_option **out_options) { - struct sd_dhcp_raw_option *raw_option; - int cnt = 0; + int cnt = 0; g_return_val_if_fail(lease, -EINVAL); g_return_val_if_fail(out_options, -EINVAL); diff --git a/src/libnm-systemd-core/src/libsystemd-network/dhcp-identifier.c b/src/libnm-systemd-core/src/libsystemd-network/dhcp-identifier.c index 74aa19de..f2d94214 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/dhcp-identifier.c +++ b/src/libnm-systemd-core/src/libsystemd-network/dhcp-identifier.c @@ -10,20 +10,27 @@ #include "sd-id128.h" #include "dhcp-identifier.h" -#include "dhcp6-protocol.h" #include "netif-util.h" #include "siphash24.h" #include "sparse-endian.h" #include "stat-util.h" -#include "stdio-util.h" +#include "string-table.h" #include "udev-util.h" -#include "virt.h" #define HASH_KEY SD_ID128_MAKE(80,11,8c,c2,fe,4a,03,ee,3e,d6,0c,6f,36,39,14,09) #define APPLICATION_ID SD_ID128_MAKE(a5,0a,d1,12,bf,60,45,77,a2,fb,74,1a,b1,95,5b,03) #define USEC_2000 ((usec_t) 946684800000000) /* 2000-01-01 00:00:00 UTC */ -int dhcp_validate_duid_len(uint16_t duid_type, size_t duid_len, bool strict) { +static const char * const duid_type_table[_DUID_TYPE_MAX] = { + [DUID_TYPE_LLT] = "DUID-LLT", + [DUID_TYPE_EN] = "DUID-EN/Vendor", + [DUID_TYPE_LL] = "DUID-LL", + [DUID_TYPE_UUID] = "UUID", +}; + +DEFINE_STRING_TABLE_LOOKUP_TO_STRING(duid_type, DUIDType); + +int dhcp_validate_duid_len(DUIDType duid_type, size_t duid_len, bool strict) { struct duid d; assert_cc(sizeof(d.raw) >= MAX_DUID_LEN); @@ -60,107 +67,141 @@ int dhcp_validate_duid_len(uint16_t duid_type, size_t duid_len, bool strict) { } #if 0 /* NM_IGNORED */ -int dhcp_identifier_set_duid_llt(struct duid *duid, usec_t t, const uint8_t *addr, size_t addr_len, uint16_t arp_type, size_t *len) { +static int dhcp_identifier_set_duid_llt(const uint8_t *addr, size_t addr_len, uint16_t arp_type, usec_t t, struct duid *ret_duid, size_t *ret_len) { uint16_t time_from_2000y; - assert(duid); - assert(len); assert(addr); + assert(ret_duid); + assert(ret_len); + + if (addr_len == 0) + return -EOPNOTSUPP; if (arp_type == ARPHRD_ETHER) assert_return(addr_len == ETH_ALEN, -EINVAL); else if (arp_type == ARPHRD_INFINIBAND) assert_return(addr_len == INFINIBAND_ALEN, -EINVAL); else - return -EINVAL; + return -EOPNOTSUPP; if (t < USEC_2000) time_from_2000y = 0; else time_from_2000y = (uint16_t) (((t - USEC_2000) / USEC_PER_SEC) & 0xffffffff); - unaligned_write_be16(&duid->type, DUID_TYPE_LLT); - unaligned_write_be16(&duid->llt.htype, arp_type); - unaligned_write_be32(&duid->llt.time, time_from_2000y); - memcpy(duid->llt.haddr, addr, addr_len); + unaligned_write_be16(&ret_duid->type, DUID_TYPE_LLT); + unaligned_write_be16(&ret_duid->llt.htype, arp_type); + unaligned_write_be32(&ret_duid->llt.time, time_from_2000y); + memcpy(ret_duid->llt.haddr, addr, addr_len); - *len = sizeof(duid->type) + sizeof(duid->llt.htype) + sizeof(duid->llt.time) + addr_len; + *ret_len = offsetof(struct duid, llt.haddr) + addr_len; return 0; } -int dhcp_identifier_set_duid_ll(struct duid *duid, const uint8_t *addr, size_t addr_len, uint16_t arp_type, size_t *len) { - assert(duid); - assert(len); +static int dhcp_identifier_set_duid_ll(const uint8_t *addr, size_t addr_len, uint16_t arp_type, struct duid *ret_duid, size_t *ret_len) { assert(addr); + assert(ret_duid); + assert(ret_len); + + if (addr_len == 0) + return -EOPNOTSUPP; if (arp_type == ARPHRD_ETHER) assert_return(addr_len == ETH_ALEN, -EINVAL); else if (arp_type == ARPHRD_INFINIBAND) assert_return(addr_len == INFINIBAND_ALEN, -EINVAL); else - return -EINVAL; + return -EOPNOTSUPP; - unaligned_write_be16(&duid->type, DUID_TYPE_LL); - unaligned_write_be16(&duid->ll.htype, arp_type); - memcpy(duid->ll.haddr, addr, addr_len); + unaligned_write_be16(&ret_duid->type, DUID_TYPE_LL); + unaligned_write_be16(&ret_duid->ll.htype, arp_type); + memcpy(ret_duid->ll.haddr, addr, addr_len); - *len = sizeof(duid->type) + sizeof(duid->ll.htype) + addr_len; + *ret_len = offsetof(struct duid, ll.haddr) + addr_len; return 0; } #endif /* NM_IGNORED */ -int dhcp_identifier_set_duid_en(struct duid *duid, size_t *len) { +int dhcp_identifier_set_duid_en(bool test_mode, struct duid *ret_duid, size_t *ret_len) { sd_id128_t machine_id; uint64_t hash; int r; - assert(duid); - assert(len); + assert(ret_duid); + assert(ret_len); - r = sd_id128_get_machine(&machine_id); - if (r < 0) { -#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION + if (!test_mode) { + r = sd_id128_get_machine(&machine_id); + if (r < 0) + return r; + } else + /* For tests, especially for fuzzers, reproducibility is important. + * Hence, use a static and constant machine ID. + * See 9216fddc5a8ac2742e6cfa7660f95c20ca4f2193. */ machine_id = SD_ID128_MAKE(01, 02, 03, 04, 05, 06, 07, 08, 09, 0a, 0b, 0c, 0d, 0e, 0f, 10); -#else - return r; -#endif - } - unaligned_write_be16(&duid->type, DUID_TYPE_EN); - unaligned_write_be32(&duid->en.pen, SYSTEMD_PEN); - - *len = sizeof(duid->type) + sizeof(duid->en); + unaligned_write_be16(&ret_duid->type, DUID_TYPE_EN); + unaligned_write_be32(&ret_duid->en.pen, SYSTEMD_PEN); /* a bit of snake-oil perhaps, but no need to expose the machine-id * directly; duid->en.id might not be aligned, so we need to copy */ hash = htole64(siphash24(&machine_id, sizeof(machine_id), HASH_KEY.bytes)); - memcpy(duid->en.id, &hash, sizeof(duid->en.id)); + memcpy(ret_duid->en.id, &hash, sizeof(ret_duid->en.id)); + + *ret_len = offsetof(struct duid, en.id) + sizeof(ret_duid->en.id); + + if (test_mode) + assert_se(memcmp(ret_duid, (const uint8_t[]) { 0x00, 0x02, 0x00, 0x00, 0xab, 0x11, 0x61, 0x77, 0x40, 0xde, 0x13, 0x42, 0xc3, 0xa2 }, *ret_len) == 0); return 0; } #if 0 /* NM_IGNORED */ -int dhcp_identifier_set_duid_uuid(struct duid *duid, size_t *len) { +static int dhcp_identifier_set_duid_uuid(struct duid *ret_duid, size_t *ret_len) { sd_id128_t machine_id; int r; - assert(duid); - assert(len); + assert(ret_duid); + assert(ret_len); r = sd_id128_get_machine_app_specific(APPLICATION_ID, &machine_id); if (r < 0) return r; - unaligned_write_be16(&duid->type, DUID_TYPE_UUID); - memcpy(&duid->raw.data, &machine_id, sizeof(machine_id)); + unaligned_write_be16(&ret_duid->type, DUID_TYPE_UUID); + memcpy(&ret_duid->uuid.uuid, &machine_id, sizeof(machine_id)); - *len = sizeof(duid->type) + sizeof(machine_id); + *ret_len = offsetof(struct duid, uuid.uuid) + sizeof(machine_id); return 0; } -#endif + +int dhcp_identifier_set_duid( + DUIDType duid_type, + const uint8_t *addr, + size_t addr_len, + uint16_t arp_type, + usec_t llt_time, + bool test_mode, + struct duid *ret_duid, + size_t *ret_len) { + + switch (duid_type) { + case DUID_TYPE_LLT: + return dhcp_identifier_set_duid_llt(addr, addr_len, arp_type, llt_time, ret_duid, ret_len); + case DUID_TYPE_EN: + return dhcp_identifier_set_duid_en(test_mode, ret_duid, ret_len); + case DUID_TYPE_LL: + return dhcp_identifier_set_duid_ll(addr, addr_len, arp_type, ret_duid, ret_len); + case DUID_TYPE_UUID: + return dhcp_identifier_set_duid_uuid(ret_duid, ret_len); + default: + return -EINVAL; + } +} +#endif /* NM_IGNORED */ int dhcp_identifier_set_iaid( int ifindex, @@ -168,7 +209,7 @@ int dhcp_identifier_set_iaid( size_t mac_len, bool legacy_unstable_byteorder, bool use_mac, - void *_id) { + void *ret) { #if 0 /* NM_IGNORED */ /* name is a pointer to memory in the sd_device struct, so must @@ -221,7 +262,7 @@ int dhcp_identifier_set_iaid( * behavior. */ id32 = be32toh(id32); - unaligned_write_ne32(_id, id32); + unaligned_write_ne32(ret, id32); return 0; #else /* NM_IGNORED */ /* for NetworkManager, we don't use this function and we should never call here. diff --git a/src/libnm-systemd-core/src/libsystemd-network/dhcp-identifier.h b/src/libnm-systemd-core/src/libsystemd-network/dhcp-identifier.h index 6c24af03..697ba3bf 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/dhcp-identifier.h +++ b/src/libnm-systemd-core/src/libsystemd-network/dhcp-identifier.h @@ -54,9 +54,23 @@ struct duid { }; } _packed_; -int dhcp_validate_duid_len(uint16_t duid_type, size_t duid_len, bool strict); -int dhcp_identifier_set_duid_llt(struct duid *duid, usec_t t, const uint8_t *addr, size_t addr_len, uint16_t arp_type, size_t *len); -int dhcp_identifier_set_duid_ll(struct duid *duid, const uint8_t *addr, size_t addr_len, uint16_t arp_type, size_t *len); -int dhcp_identifier_set_duid_en(struct duid *duid, size_t *len); -int dhcp_identifier_set_duid_uuid(struct duid *duid, size_t *len); -int dhcp_identifier_set_iaid(int ifindex, const uint8_t *mac, size_t mac_len, bool legacy_unstable_byteorder, bool use_mac, void *_id); +int dhcp_validate_duid_len(DUIDType duid_type, size_t duid_len, bool strict); +int dhcp_identifier_set_duid_en(bool test_mode, struct duid *ret_duid, size_t *ret_len); +int dhcp_identifier_set_duid( + DUIDType duid_type, + const uint8_t *addr, + size_t addr_len, + uint16_t arp_type, + usec_t llt_time, + bool test_mode, + struct duid *ret_duid, + size_t *ret_len); +int dhcp_identifier_set_iaid( + int ifindex, + const uint8_t *mac, + size_t mac_len, + bool legacy_unstable_byteorder, + bool use_mac, + void *ret); + +const char *duid_type_to_string(DUIDType t) _const_; diff --git a/src/libnm-systemd-core/src/libsystemd-network/dhcp-lease-internal.h b/src/libnm-systemd-core/src/libsystemd-network/dhcp-lease-internal.h index 992ac9f3..c67e9511 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/dhcp-lease-internal.h +++ b/src/libnm-systemd-core/src/libsystemd-network/dhcp-lease-internal.h @@ -16,8 +16,6 @@ struct sd_dhcp_route { struct in_addr dst_addr; struct in_addr gw_addr; unsigned char dst_prefixlen; - - uint8_t option; }; struct sd_dhcp_raw_option { @@ -52,8 +50,10 @@ struct sd_dhcp_lease { DHCPServerData servers[_SD_DHCP_LEASE_SERVER_TYPE_MAX]; - struct sd_dhcp_route *static_route; - size_t static_route_size; + struct sd_dhcp_route *static_routes; + size_t n_static_routes; + struct sd_dhcp_route *classless_routes; + size_t n_classless_routes; uint16_t mtu; /* 0 if unset */ diff --git a/src/libnm-systemd-core/src/libsystemd-network/dhcp-option.c b/src/libnm-systemd-core/src/libsystemd-network/dhcp-option.c index 1710f696..712f6097 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/dhcp-option.c +++ b/src/libnm-systemd-core/src/libsystemd-network/dhcp-option.c @@ -60,7 +60,6 @@ static int option_append(uint8_t options[], size_t size, size_t *offset, case SD_DHCP_OPTION_USER_CLASS: { size_t total = 0; - char **s; if (strv_isempty((char **) optval)) return -EINVAL; diff --git a/src/libnm-systemd-core/src/libsystemd-network/dhcp-protocol.h b/src/libnm-systemd-core/src/libsystemd-network/dhcp-protocol.h index 11f4201a..dd54bcf6 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/dhcp-protocol.h +++ b/src/libnm-systemd-core/src/libsystemd-network/dhcp-protocol.h @@ -73,15 +73,24 @@ enum { }; enum { - DHCP_DISCOVER = 1, - DHCP_OFFER = 2, - DHCP_REQUEST = 3, - DHCP_DECLINE = 4, - DHCP_ACK = 5, - DHCP_NAK = 6, - DHCP_RELEASE = 7, - DHCP_INFORM = 8, - DHCP_FORCERENEW = 9, + DHCP_DISCOVER = 1, /* [RFC2132] */ + DHCP_OFFER = 2, /* [RFC2132] */ + DHCP_REQUEST = 3, /* [RFC2132] */ + DHCP_DECLINE = 4, /* [RFC2132] */ + DHCP_ACK = 5, /* [RFC2132] */ + DHCP_NAK = 6, /* [RFC2132] */ + DHCP_RELEASE = 7, /* [RFC2132] */ + DHCP_INFORM = 8, /* [RFC2132] */ + DHCP_FORCERENEW = 9, /* [RFC3203] */ + DHCPLEASEQUERY = 10, /* [RFC4388] */ + DHCPLEASEUNASSIGNED = 11, /* [RFC4388] */ + DHCPLEASEUNKNOWN = 12, /* [RFC4388] */ + DHCPLEASEACTIVE = 13, /* [RFC4388] */ + DHCPBULKLEASEQUERY = 14, /* [RFC6926] */ + DHCPLEASEQUERYDONE = 15, /* [RFC6926] */ + DHCPACTIVELEASEQUERY = 16, /* [RFC7724] */ + DHCPLEASEQUERYSTATUS = 17, /* [RFC7724] */ + DHCPTLS = 18, /* [RFC7724] */ }; enum { diff --git a/src/libnm-systemd-core/src/libsystemd-network/dhcp6-internal.h b/src/libnm-systemd-core/src/libsystemd-network/dhcp6-internal.h index f9434098..0d7813f6 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/dhcp6-internal.h +++ b/src/libnm-systemd-core/src/libsystemd-network/dhcp6-internal.h @@ -11,138 +11,83 @@ #include "sd-event.h" #include "sd-dhcp6-client.h" +#include "dhcp-identifier.h" +#include "dhcp6-option.h" #include "dhcp6-protocol.h" +#include "ether-addr-util.h" #include "hashmap.h" -#include "list.h" #include "macro.h" #include "network-common.h" +#include "ordered-set.h" #include "sparse-endian.h" +#include "time-util.h" -typedef struct sd_dhcp6_option { +/* what to request from the server, addresses (IA_NA) and/or prefixes (IA_PD) */ +typedef enum DHCP6RequestIA { + DHCP6_REQUEST_IA_NA = 1 << 0, + DHCP6_REQUEST_IA_TA = 1 << 1, /* currently not used */ + DHCP6_REQUEST_IA_PD = 1 << 2, +} DHCP6RequestIA; + +struct sd_dhcp6_client { unsigned n_ref; - uint32_t enterprise_identifier; - uint16_t option; - void *data; - size_t length; -} sd_dhcp6_option; - -extern const struct hash_ops dhcp6_option_hash_ops; - -/* Common option header */ -typedef struct DHCP6Option { - be16_t code; - be16_t len; - uint8_t data[]; -} _packed_ DHCP6Option; - -/* Address option */ -struct iaaddr { - struct in6_addr address; - be32_t lifetime_preferred; - be32_t lifetime_valid; -} _packed_; - -/* Prefix Delegation Prefix option */ -struct iapdprefix { - be32_t lifetime_preferred; - be32_t lifetime_valid; - uint8_t prefixlen; - struct in6_addr address; -} _packed_; - -typedef struct DHCP6Address DHCP6Address; - -struct DHCP6Address { - LIST_FIELDS(DHCP6Address, addresses); - - union { - struct iaaddr iaaddr; - struct iapdprefix iapdprefix; - }; + int ifindex; + char *ifname; + + struct in6_addr local_address; + struct hw_addr_data hw_addr; + uint16_t arp_type; + + sd_event *event; + sd_event_source *receive_message; + sd_event_source *timeout_resend; + sd_event_source *timeout_expire; + sd_event_source *timeout_t1; + sd_event_source *timeout_t2; + int event_priority; + int fd; + + DHCP6State state; + bool information_request; + usec_t information_request_time_usec; + usec_t information_refresh_time_usec; + be32_t transaction_id; + usec_t transaction_start; + usec_t retransmit_time; + uint8_t retransmit_count; + + bool iaid_set; + DHCP6IA ia_na; + DHCP6IA ia_pd; + DHCP6RequestIA request_ia; + struct duid duid; + size_t duid_len; + be16_t *req_opts; + size_t req_opts_len; + char *fqdn; + char *mudurl; + char **user_class; + char **vendor_class; + OrderedHashmap *extra_options; + OrderedSet *vendor_options; + + struct sd_dhcp6_lease *lease; + + sd_dhcp6_client_callback_t callback; + void *userdata; + + /* Ignore ifindex when generating iaid. See dhcp_identifier_set_iaid(). */ + bool test_mode; }; -/* Non-temporary Address option */ -struct ia_na { - be32_t id; - be32_t lifetime_t1; - be32_t lifetime_t2; -} _packed_; - -/* Prefix Delegation option */ -struct ia_pd { - be32_t id; - be32_t lifetime_t1; - be32_t lifetime_t2; -} _packed_; - -/* Temporary Address option */ -struct ia_ta { - be32_t id; -} _packed_; - -typedef struct DHCP6IA { - uint16_t type; - union { - struct ia_na ia_na; - struct ia_pd ia_pd; - struct ia_ta ia_ta; - }; - - LIST_HEAD(DHCP6Address, addresses); -} DHCP6IA; - -typedef struct sd_dhcp6_client sd_dhcp6_client; - -bool dhcp6_option_can_request(uint16_t option); -int dhcp6_option_append(uint8_t **buf, size_t *buflen, uint16_t code, - size_t optlen, const void *optval); -int dhcp6_option_append_ia(uint8_t **buf, size_t *buflen, const DHCP6IA *ia); -int dhcp6_option_append_pd(uint8_t **buf, size_t *buflen, const DHCP6IA *pd, const DHCP6Address *hint_pd_prefix); -int dhcp6_option_append_fqdn(uint8_t **buf, size_t *buflen, const char *fqdn); -int dhcp6_option_append_user_class(uint8_t **buf, size_t *buflen, char * const *user_class); -int dhcp6_option_append_vendor_class(uint8_t **buf, size_t *buflen, char * const *user_class); -int dhcp6_option_append_vendor_option(uint8_t **buf, size_t *buflen, OrderedHashmap *vendor_options); - -int dhcp6_option_parse( - const uint8_t *buf, - size_t buflen, - size_t *offset, - uint16_t *ret_option_code, - size_t *ret_option_data_len, - const uint8_t **ret_option_data); -int dhcp6_option_parse_status(const uint8_t *data, size_t data_len, char **ret_status_message); -int dhcp6_option_parse_ia( - sd_dhcp6_client *client, - be32_t iaid, - uint16_t option_code, - size_t option_data_len, - const uint8_t *option_data, - DHCP6IA *ret); -int dhcp6_option_parse_addresses( - const uint8_t *optval, - size_t optlen, - struct in6_addr **addrs, - size_t *count); -int dhcp6_option_parse_domainname_list(const uint8_t *optval, size_t optlen, char ***ret); -int dhcp6_option_parse_domainname(const uint8_t *optval, size_t optlen, char **ret); - int dhcp6_network_bind_udp_socket(int ifindex, struct in6_addr *address); int dhcp6_network_send_udp_socket(int s, struct in6_addr *address, const void *packet, size_t len); -int client_parse_message( - sd_dhcp6_client *client, - DHCP6Message *message, - size_t len, - sd_dhcp6_lease *lease); - -const char *dhcp6_message_type_to_string(int s) _const_; -int dhcp6_message_type_from_string(const char *s) _pure_; -const char *dhcp6_message_status_to_string(int s) _const_; -int dhcp6_message_status_from_string(const char *s) _pure_; - +int dhcp6_client_send_message(sd_dhcp6_client *client); void dhcp6_client_set_test_mode(sd_dhcp6_client *client, bool test_mode); +int dhcp6_client_set_transaction_id(sd_dhcp6_client *client, uint32_t transaction_id); #define log_dhcp6_client_errno(client, error, fmt, ...) \ log_interface_prefix_full_errno( \ diff --git a/src/libnm-systemd-core/src/libsystemd-network/dhcp6-lease-internal.h b/src/libnm-systemd-core/src/libsystemd-network/dhcp6-lease-internal.h index 8ae2ecd6..1f10dccb 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/dhcp6-lease-internal.h +++ b/src/libnm-systemd-core/src/libsystemd-network/dhcp6-lease-internal.h @@ -5,11 +5,13 @@ Copyright © 2014-2015 Intel Corporation. All rights reserved. ***/ -#include <stdint.h> +#include <inttypes.h> #include "sd-dhcp6-lease.h" -#include "dhcp6-internal.h" +#include "dhcp6-option.h" +#include "macro.h" +#include "time-util.h" struct sd_dhcp6_lease { unsigned n_ref; @@ -21,10 +23,13 @@ struct sd_dhcp6_lease { uint8_t preference; bool rapid_commit; triple_timestamp timestamp; + usec_t lifetime_t1; + usec_t lifetime_t2; + usec_t lifetime_valid; struct in6_addr server_address; - DHCP6IA ia; - DHCP6IA pd; + DHCP6IA *ia_na; /* Identity association non-temporary addresses */ + DHCP6IA *ia_pd; /* Identity association prefix delegation */ DHCP6Address *addr_iter; DHCP6Address *prefix_iter; @@ -40,17 +45,15 @@ struct sd_dhcp6_lease { char *fqdn; }; -int dhcp6_lease_ia_rebind_expire(const DHCP6IA *ia, uint32_t *expire); -DHCP6IA *dhcp6_lease_free_ia(DHCP6IA *ia); - +int dhcp6_lease_get_lifetime(sd_dhcp6_lease *lease, usec_t *ret_t1, usec_t *ret_t2, usec_t *ret_valid); int dhcp6_lease_set_clientid(sd_dhcp6_lease *lease, const uint8_t *id, size_t len); int dhcp6_lease_get_clientid(sd_dhcp6_lease *lease, uint8_t **ret_id, size_t *ret_len); int dhcp6_lease_set_serverid(sd_dhcp6_lease *lease, const uint8_t *id, size_t len); int dhcp6_lease_get_serverid(sd_dhcp6_lease *lease, uint8_t **ret_id, size_t *ret_len); int dhcp6_lease_set_preference(sd_dhcp6_lease *lease, uint8_t preference); -int dhcp6_lease_get_preference(sd_dhcp6_lease *lease, uint8_t *preference); +int dhcp6_lease_get_preference(sd_dhcp6_lease *lease, uint8_t *ret); int dhcp6_lease_set_rapid_commit(sd_dhcp6_lease *lease); -int dhcp6_lease_get_rapid_commit(sd_dhcp6_lease *lease, bool *rapid_commit); +int dhcp6_lease_get_rapid_commit(sd_dhcp6_lease *lease, bool *ret); int dhcp6_lease_add_dns(sd_dhcp6_lease *lease, const uint8_t *optval, size_t optlen); int dhcp6_lease_add_domains(sd_dhcp6_lease *lease, const uint8_t *optval, size_t optlen); @@ -59,3 +62,10 @@ int dhcp6_lease_add_sntp(sd_dhcp6_lease *lease, const uint8_t *optval, size_t op int dhcp6_lease_set_fqdn(sd_dhcp6_lease *lease, const uint8_t *optval, size_t optlen); int dhcp6_lease_new(sd_dhcp6_lease **ret); +int dhcp6_lease_new_from_message( + sd_dhcp6_client *client, + const DHCP6Message *message, + size_t len, + const triple_timestamp *timestamp, + const struct in6_addr *server_address, + sd_dhcp6_lease **ret); diff --git a/src/libnm-systemd-core/src/libsystemd-network/dhcp6-option.c b/src/libnm-systemd-core/src/libsystemd-network/dhcp6-option.c index 237771e6..03d56371 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/dhcp6-option.c +++ b/src/libnm-systemd-core/src/libsystemd-network/dhcp6-option.c @@ -11,14 +11,12 @@ #include "sd-dhcp6-client.h" #include "alloc-util.h" -#include "dhcp-identifier.h" #include "dhcp6-internal.h" -#include "dhcp6-lease-internal.h" +#include "dhcp6-option.h" #include "dhcp6-protocol.h" #include "dns-domain.h" #include "escape.h" #include "memory-util.h" -#include "sparse-endian.h" #include "strv.h" #include "unaligned.h" @@ -76,8 +74,8 @@ bool dhcp6_option_can_request(uint16_t option) { return false; case SD_DHCP6_OPTION_CLIENT_FQDN: case SD_DHCP6_OPTION_PANA_AGENT: - case SD_DHCP6_OPTION_NEW_POSIX_TIMEZONE: - case SD_DHCP6_OPTION_NEW_TZDB_TIMEZONE: + case SD_DHCP6_OPTION_POSIX_TIMEZONE: + case SD_DHCP6_OPTION_TZDB_TIMEZONE: return true; case SD_DHCP6_OPTION_ERO: case SD_DHCP6_OPTION_LQ_QUERY: @@ -214,19 +212,15 @@ bool dhcp6_option_can_request(uint16_t option) { } static int option_append_hdr(uint8_t **buf, size_t *buflen, uint16_t optcode, size_t optlen) { - DHCP6Option *option; - assert_return(buf, -EINVAL); assert_return(*buf, -EINVAL); assert_return(buflen, -EINVAL); - option = (DHCP6Option*) *buf; - if (optlen > 0xffff || *buflen < optlen + offsetof(DHCP6Option, data)) return -ENOBUFS; - option->code = htobe16(optcode); - option->len = htobe16(optlen); + unaligned_write_be16(*buf + offsetof(DHCP6Option, code), optcode); + unaligned_write_be16(*buf + offsetof(DHCP6Option, len), optlen); *buf += offsetof(DHCP6Option, data); *buflen -= offsetof(DHCP6Option, data); @@ -244,15 +238,13 @@ int dhcp6_option_append(uint8_t **buf, size_t *buflen, uint16_t code, if (r < 0) return r; - memcpy_safe(*buf, optval, optlen); - - *buf += optlen; + *buf = mempcpy_safe(*buf, optval, optlen); *buflen -= optlen; return 0; } -int dhcp6_option_append_vendor_option(uint8_t **buf, size_t *buflen, OrderedHashmap *vendor_options) { +int dhcp6_option_append_vendor_option(uint8_t **buf, size_t *buflen, OrderedSet *vendor_options) { sd_dhcp6_option *options; int r; @@ -261,7 +253,7 @@ int dhcp6_option_append_vendor_option(uint8_t **buf, size_t *buflen, OrderedHash assert(buflen); assert(vendor_options); - ORDERED_HASHMAP_FOREACH(options, vendor_options) { + ORDERED_SET_FOREACH(options, vendor_options) { _cleanup_free_ uint8_t *p = NULL; size_t total; @@ -284,79 +276,31 @@ int dhcp6_option_append_vendor_option(uint8_t **buf, size_t *buflen, OrderedHash return 0; } -int dhcp6_option_append_ia(uint8_t **buf, size_t *buflen, const DHCP6IA *ia) { - size_t ia_buflen, ia_addrlen = 0; - struct ia_na ia_na; - struct ia_ta ia_ta; - DHCP6Address *addr; - uint8_t *ia_hdr; - uint16_t len; - void *p; +static int option_append_ia_address(uint8_t **buf, size_t *buflen, const struct iaaddr *address) { + struct iaaddr a; int r; - assert_return(buf, -EINVAL); - assert_return(*buf, -EINVAL); - assert_return(buflen, -EINVAL); - assert_return(ia, -EINVAL); - - /* client should not send set T1 and T2. See, RFC 8415, and issue #18090. */ - - switch (ia->type) { - case SD_DHCP6_OPTION_IA_NA: - len = DHCP6_OPTION_IA_NA_LEN; - ia_na = (struct ia_na) { - .id = ia->ia_na.id, - }; - p = &ia_na; - break; - - case SD_DHCP6_OPTION_IA_TA: - len = DHCP6_OPTION_IA_TA_LEN; - ia_ta = (struct ia_ta) { - .id = ia->ia_ta.id, - }; - p = &ia_ta; - break; - - default: - return -EINVAL; - } - - if (*buflen < offsetof(DHCP6Option, data) + len) - return -ENOBUFS; - - ia_hdr = *buf; - ia_buflen = *buflen; - - *buf += offsetof(DHCP6Option, data); - *buflen -= offsetof(DHCP6Option, data); - - memcpy(*buf, p, len); - - *buf += len; - *buflen -= len; - - LIST_FOREACH(addresses, addr, ia->addresses) { - struct iaaddr a = { - .address = addr->iaaddr.address, - }; - - r = option_append_hdr(buf, buflen, SD_DHCP6_OPTION_IAADDR, sizeof(struct iaaddr)); - if (r < 0) - return r; + assert(buf); + assert(*buf); + assert(buflen); + assert(address); - memcpy(*buf, &a, sizeof(struct iaaddr)); + /* Do not append T1 and T2. */ + a = (struct iaaddr) { + .address = address->address, + }; - *buf += sizeof(struct iaaddr); - *buflen -= sizeof(struct iaaddr); + r = option_append_hdr(buf, buflen, SD_DHCP6_OPTION_IAADDR, sizeof(struct iaaddr)); + if (r < 0) + return r; - ia_addrlen += offsetof(DHCP6Option, data) + sizeof(struct iaaddr); - } + *buf = mempcpy(*buf, &a, sizeof(struct iaaddr)); + *buflen -= sizeof(struct iaaddr); - return option_append_hdr(&ia_hdr, &ia_buflen, ia->type, len + ia_addrlen); + return offsetof(DHCP6Option, data) + sizeof(struct iaaddr); } -static int option_append_pd_prefix(uint8_t **buf, size_t *buflen, const DHCP6Address *prefix) { +static int option_append_pd_prefix(uint8_t **buf, size_t *buflen, const struct iapdprefix *prefix) { struct iapdprefix p; int r; @@ -365,79 +309,84 @@ static int option_append_pd_prefix(uint8_t **buf, size_t *buflen, const DHCP6Add assert(buflen); assert(prefix); - if (prefix->iapdprefix.prefixlen == 0) + if (prefix->prefixlen == 0) return -EINVAL; /* Do not append T1 and T2. */ - p = (struct iapdprefix) { - .prefixlen = prefix->iapdprefix.prefixlen, - .address = prefix->iapdprefix.address, + .prefixlen = prefix->prefixlen, + .address = prefix->address, }; r = option_append_hdr(buf, buflen, SD_DHCP6_OPTION_IA_PD_PREFIX, sizeof(struct iapdprefix)); if (r < 0) return r; - memcpy(*buf, &p, sizeof(struct iapdprefix)); - - *buf += sizeof(struct iapdprefix); + *buf = mempcpy(*buf, &p, sizeof(struct iapdprefix)); *buflen -= sizeof(struct iapdprefix); return offsetof(DHCP6Option, data) + sizeof(struct iapdprefix); } -int dhcp6_option_append_pd(uint8_t **buf, size_t *buflen, const DHCP6IA *pd, const DHCP6Address *hint_pd_prefix) { - struct ia_pd ia_pd; - size_t len, pd_buflen; - uint8_t *pd_hdr; +int dhcp6_option_append_ia(uint8_t **buf, size_t *buflen, const DHCP6IA *ia) { + struct ia_header header; + size_t ia_buflen; + uint8_t *ia_hdr; + uint16_t len; int r; assert_return(buf, -EINVAL); assert_return(*buf, -EINVAL); assert_return(buflen, -EINVAL); - assert_return(pd, -EINVAL); - assert_return(pd->type == SD_DHCP6_OPTION_IA_PD, -EINVAL); + assert_return(ia, -EINVAL); - /* Do not set T1 and T2. */ - ia_pd = (struct ia_pd) { - .id = pd->ia_pd.id, - }; - len = sizeof(struct ia_pd); + /* client should not send set T1 and T2. See, RFC 8415, and issue #18090. */ + + switch (ia->type) { + case SD_DHCP6_OPTION_IA_NA: + case SD_DHCP6_OPTION_IA_PD: + len = sizeof(struct ia_header); + header = (struct ia_header) { + .id = ia->header.id, + }; + break; + + case SD_DHCP6_OPTION_IA_TA: + len = sizeof(header.id); /* IA_TA does not have lifetime. */ + header = (struct ia_header) { + .id = ia->header.id, + }; + break; + + default: + assert_not_reached(); + } if (*buflen < offsetof(DHCP6Option, data) + len) return -ENOBUFS; - pd_hdr = *buf; - pd_buflen = *buflen; + ia_hdr = *buf; + ia_buflen = *buflen; /* The header will be written at the end of this function. */ *buf += offsetof(DHCP6Option, data); *buflen -= offsetof(DHCP6Option, data); - memcpy(*buf, &ia_pd, len); - - *buf += sizeof(struct ia_pd); - *buflen -= sizeof(struct ia_pd); - - DHCP6Address *prefix; - LIST_FOREACH(addresses, prefix, pd->addresses) { - r = option_append_pd_prefix(buf, buflen, prefix); - if (r < 0) - return r; - - len += r; - } + *buf = mempcpy(*buf, &header, len); + *buflen -= len; - if (hint_pd_prefix && hint_pd_prefix->iapdprefix.prefixlen > 0) { - r = option_append_pd_prefix(buf, buflen, hint_pd_prefix); + LIST_FOREACH(addresses, addr, ia->addresses) { + if (ia->type == SD_DHCP6_OPTION_IA_PD) + r = option_append_pd_prefix(buf, buflen, &addr->iapdprefix); + else + r = option_append_ia_address(buf, buflen, &addr->iaaddr); if (r < 0) return r; len += r; } - return option_append_hdr(&pd_hdr, &pd_buflen, pd->type, len); + return option_append_hdr(&ia_hdr, &ia_buflen, ia->type, len); } int dhcp6_option_append_fqdn(uint8_t **buf, size_t *buflen, const char *fqdn) { @@ -470,7 +419,6 @@ int dhcp6_option_append_fqdn(uint8_t **buf, size_t *buflen, const char *fqdn) { int dhcp6_option_append_user_class(uint8_t **buf, size_t *buflen, char * const *user_class) { _cleanup_free_ uint8_t *p = NULL; size_t total = 0, offset = 0; - char * const *s; assert(buf); assert(*buf); @@ -503,7 +451,6 @@ int dhcp6_option_append_vendor_class(uint8_t **buf, size_t *buflen, char * const _cleanup_free_ uint8_t *p = NULL; uint32_t enterprise_identifier; size_t total, offset; - char * const *s; assert(buf); assert(*buf); @@ -550,7 +497,6 @@ int dhcp6_option_parse( size_t *ret_option_data_len, const uint8_t **ret_option_data) { - const DHCP6Option *option; size_t len; assert(buf); @@ -565,16 +511,15 @@ int dhcp6_option_parse( if (*offset >= buflen - offsetof(DHCP6Option, data)) return -EBADMSG; - option = (const DHCP6Option*) (buf + *offset); - len = be16toh(option->len); + len = unaligned_read_be16(buf + *offset + offsetof(DHCP6Option, len)); if (len > buflen - offsetof(DHCP6Option, data) - *offset) return -EBADMSG; - *offset += offsetof(DHCP6Option, data) + len; - *ret_option_code = be16toh(option->code); + *ret_option_code = unaligned_read_be16(buf + *offset + offsetof(DHCP6Option, code)); *ret_option_data_len = len; - *ret_option_data = option->data; + *ret_option_data = buf + *offset + offsetof(DHCP6Option, data); + *offset += offsetof(DHCP6Option, data) + len; return 0; } @@ -603,9 +548,9 @@ int dhcp6_option_parse_status(const uint8_t *data, size_t data_len, char **ret_s static int dhcp6_option_parse_ia_options(sd_dhcp6_client *client, const uint8_t *buf, size_t buflen) { int r; - assert(buf); + assert(buf || buflen == 0); - for(size_t offset = 0; offset < buflen;) { + for (size_t offset = 0; offset < buflen;) { const uint8_t *data; size_t data_len; uint16_t code; @@ -614,22 +559,22 @@ static int dhcp6_option_parse_ia_options(sd_dhcp6_client *client, const uint8_t if (r < 0) return r; - switch(code) { + switch (code) { case SD_DHCP6_OPTION_STATUS_CODE: { _cleanup_free_ char *msg = NULL; r = dhcp6_option_parse_status(data, data_len, &msg); if (r == -ENOMEM) return r; - if (r < 0) - /* Let's log but ignore the invalid status option. */ - log_dhcp6_client_errno(client, r, - "Received an IA address or PD prefix option with an invalid status sub option, ignoring: %m"); - else if (r > 0) + if (r > 0) return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), "Received an IA address or PD prefix option with non-zero status: %s%s%s", strempty(msg), isempty(msg) ? "" : ": ", dhcp6_message_status_to_string(r)); + if (r < 0) + /* Let's log but ignore the invalid status option. */ + log_dhcp6_client_errno(client, r, + "Received an IA address or PD prefix option with an invalid status sub option, ignoring: %m"); break; } default: @@ -640,19 +585,29 @@ static int dhcp6_option_parse_ia_options(sd_dhcp6_client *client, const uint8_t return 0; } -static int dhcp6_option_parse_ia_address(sd_dhcp6_client *client, const uint8_t *data, size_t len, DHCP6Address **ret) { +static int dhcp6_option_parse_ia_address(sd_dhcp6_client *client, DHCP6IA *ia, const uint8_t *data, size_t len) { + _cleanup_free_ DHCP6Address *a = NULL; uint32_t lt_valid, lt_pref; - DHCP6Address *a; int r; - assert(data); - assert(ret); + assert(ia); + assert(data || len == 0); + + if (!IN_SET(ia->type, SD_DHCP6_OPTION_IA_NA, SD_DHCP6_OPTION_IA_TA)) + return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), + "Received an IA address sub-option in an invalid option, ignoring."); if (len < sizeof(struct iaaddr)) return -EBADMSG; - lt_valid = be32toh(((const struct iaaddr*) data)->lifetime_valid); - lt_pref = be32toh(((const struct iaaddr*) data)->lifetime_preferred); + a = new(DHCP6Address, 1); + if (!a) + return -ENOMEM; + + memcpy(&a->iaaddr, data, sizeof(struct iaaddr)); + + lt_valid = be32toh(a->iaaddr.lifetime_valid); + lt_pref = be32toh(a->iaaddr.lifetime_preferred); if (lt_valid == 0) return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), @@ -669,27 +624,33 @@ static int dhcp6_option_parse_ia_address(sd_dhcp6_client *client, const uint8_t return r; } - a = new(DHCP6Address, 1); - if (!a) - return -ENOMEM; - - LIST_INIT(addresses, a); - memcpy(&a->iaaddr, data, sizeof(struct iaaddr)); - - *ret = a; + LIST_PREPEND(addresses, ia->addresses, TAKE_PTR(a)); return 0; } -static int dhcp6_option_parse_ia_pdprefix(sd_dhcp6_client *client, const uint8_t *data, size_t len, DHCP6Address **ret) { +static int dhcp6_option_parse_ia_pdprefix(sd_dhcp6_client *client, DHCP6IA *ia, const uint8_t *data, size_t len) { + _cleanup_free_ DHCP6Address *a = NULL; uint32_t lt_valid, lt_pref; - DHCP6Address *a; int r; + assert(ia); + assert(data || len == 0); + + if (ia->type != SD_DHCP6_OPTION_IA_PD) + return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), + "Received an PD prefix sub-option in an invalid option, ignoring"); + if (len < sizeof(struct iapdprefix)) - return -ENOMSG; + return -EBADMSG; + + a = new(DHCP6Address, 1); + if (!a) + return -ENOMEM; + + memcpy(&a->iapdprefix, data, sizeof(struct iapdprefix)); - lt_valid = be32toh(((const struct iapdprefix*) data)->lifetime_valid); - lt_pref = be32toh(((const struct iapdprefix*) data)->lifetime_preferred); + lt_valid = be32toh(a->iapdprefix.lifetime_valid); + lt_pref = be32toh(a->iapdprefix.lifetime_preferred); if (lt_valid == 0) return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), @@ -706,14 +667,7 @@ static int dhcp6_option_parse_ia_pdprefix(sd_dhcp6_client *client, const uint8_t return r; } - a = new(DHCP6Address, 1); - if (!a) - return -ENOMEM; - - LIST_INIT(addresses, a); - memcpy(&a->iapdprefix, data, sizeof(struct iapdprefix)); - - *ret = a; + LIST_PREPEND(addresses, ia->addresses, TAKE_PTR(a)); return 0; } @@ -723,16 +677,15 @@ int dhcp6_option_parse_ia( uint16_t option_code, size_t option_data_len, const uint8_t *option_data, - DHCP6IA *ret) { + DHCP6IA **ret) { - _cleanup_(dhcp6_lease_free_ia) DHCP6IA ia = {}; - uint32_t lt_t1, lt_t2, lt_min = UINT32_MAX; - be32_t received_iaid; - size_t offset; + _cleanup_(dhcp6_ia_freep) DHCP6IA *ia = NULL; + uint32_t lt_t1, lt_t2; + size_t header_len; int r; assert(IN_SET(option_code, SD_DHCP6_OPTION_IA_NA, SD_DHCP6_OPTION_IA_TA, SD_DHCP6_OPTION_IA_PD)); - assert(option_data); + assert(option_data || option_data_len == 0); assert(ret); /* This will return the following: @@ -745,56 +698,51 @@ int dhcp6_option_parse_ia( switch (option_code) { case SD_DHCP6_OPTION_IA_NA: - - if (option_data_len < DHCP6_OPTION_IA_NA_LEN) - return -EBADMSG; - - offset = DHCP6_OPTION_IA_NA_LEN; - - received_iaid = ((const struct ia_na*) option_data)->id; - lt_t1 = be32toh(((const struct ia_na*) option_data)->lifetime_t1); - lt_t2 = be32toh(((const struct ia_na*) option_data)->lifetime_t2); - break; - case SD_DHCP6_OPTION_IA_PD: - - if (option_data_len < DHCP6_OPTION_IA_PD_LEN) - return -EBADMSG; - - offset = DHCP6_OPTION_IA_PD_LEN; - - received_iaid = ((const struct ia_pd*) option_data)->id; - lt_t1 = be32toh(((const struct ia_pd*) option_data)->lifetime_t1); - lt_t2 = be32toh(((const struct ia_pd*) option_data)->lifetime_t2); + header_len = sizeof(struct ia_header); break; case SD_DHCP6_OPTION_IA_TA: - if (option_data_len < DHCP6_OPTION_IA_TA_LEN) - return -ENOMSG; - - offset = DHCP6_OPTION_IA_TA_LEN; - - received_iaid = ((const struct ia_ta*) option_data)->id; - lt_t1 = lt_t2 = 0; /* No lifetime for IA_TA. */ + header_len = sizeof(be32_t); /* IA_TA does not have lifetime. */ break; default: assert_not_reached(); } + if (option_data_len < header_len) + return -EBADMSG; + + ia = new(DHCP6IA, 1); + if (!ia) + return -ENOMEM; + + *ia = (DHCP6IA) { + .type = option_code, + }; + memcpy(&ia->header, option_data, header_len); + /* According to RFC8415, IAs which do not match the client's IAID should be ignored, * but not necessary to ignore or refuse the whole message. */ - if (received_iaid != iaid) + if (ia->header.id != iaid) return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(ENOANO), "Received an IA option with a different IAID " "from the one chosen by the client, ignoring."); + /* It is not necessary to check if the lifetime_t2 is zero here, as in that case it will be updated later. */ + lt_t1 = be32toh(ia->header.lifetime_t1); + lt_t2 = be32toh(ia->header.lifetime_t2); + if (lt_t1 > lt_t2) return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), "Received an IA option with T1 %"PRIu32"sec > T2 %"PRIu32"sec, ignoring.", lt_t1, lt_t2); + if (lt_t1 == 0 && lt_t2 > 0) + return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), + "Received an IA option with zero T1 and non-zero T2 (%"PRIu32"sec), ignoring.", + lt_t2); - for (; offset < option_data_len;) { + for (size_t offset = header_len; offset < option_data_len;) { const uint8_t *subdata; size_t subdata_len; uint16_t subopt; @@ -805,41 +753,19 @@ int dhcp6_option_parse_ia( switch (subopt) { case SD_DHCP6_OPTION_IAADDR: { - DHCP6Address *a; - - if (!IN_SET(option_code, SD_DHCP6_OPTION_IA_NA, SD_DHCP6_OPTION_IA_TA)) { - log_dhcp6_client(client, "Received an IA_PD option with an IA address, ignoring."); - continue; - } - - r = dhcp6_option_parse_ia_address(client, subdata, subdata_len, &a); + r = dhcp6_option_parse_ia_address(client, ia, subdata, subdata_len); if (r == -ENOMEM) return r; - if (r < 0) - /* Ignore the sub-option on non-critical errors. */ - continue; - lt_min = MIN(lt_min, be32toh(a->iaaddr.lifetime_valid)); - LIST_PREPEND(addresses, ia.addresses, a); + /* Ignore non-critical errors in the sub-option. */ break; } case SD_DHCP6_OPTION_IA_PD_PREFIX: { - DHCP6Address *a; - - if (option_code != SD_DHCP6_OPTION_IA_PD) { - log_dhcp6_client(client, "Received an IA_NA or IA_TA option with an PD prefix, ignoring"); - continue; - } - - r = dhcp6_option_parse_ia_pdprefix(client, subdata, subdata_len, &a); + r = dhcp6_option_parse_ia_pdprefix(client, ia, subdata, subdata_len); if (r == -ENOMEM) return r; - if (r < 0) - /* Ignore the sub-option on non-critical errors. */ - continue; - lt_min = MIN(lt_min, be32toh(a->iapdprefix.lifetime_valid)); - LIST_PREPEND(addresses, ia.addresses, a); + /* Ignore non-critical errors in the sub-option. */ break; } case SD_DHCP6_OPTION_STATUS_CODE: { @@ -848,14 +774,14 @@ int dhcp6_option_parse_ia( r = dhcp6_option_parse_status(subdata, subdata_len, &msg); if (r == -ENOMEM) return r; - if (r < 0) - log_dhcp6_client_errno(client, r, - "Received an IA option with an invalid status sub option, ignoring: %m"); - else if (r > 0) + if (r > 0) return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), "Received an IA option with non-zero status: %s%s%s", strempty(msg), isempty(msg) ? "" : ": ", dhcp6_message_status_to_string(r)); + if (r < 0) + log_dhcp6_client_errno(client, r, + "Received an IA option with an invalid status sub option, ignoring: %m"); break; } default: @@ -863,50 +789,11 @@ int dhcp6_option_parse_ia( } } - if (!ia.addresses) + if (!ia->addresses) return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(ENODATA), "Received an IA option without valid IA addresses or PD prefixes, ignoring."); - if (IN_SET(option_code, SD_DHCP6_OPTION_IA_NA, SD_DHCP6_OPTION_IA_PD) && - lt_t1 == 0 && lt_t2 == 0 && lt_min != UINT32_MAX) { - lt_t1 = lt_min / 2; - lt_t2 = lt_min / 10 * 8; - - log_dhcp6_client(client, "Received an IA option with both T1 and T2 equal to zero. " - "Adjusting them based on the minimum valid lifetime of IA addresses or PD prefixes: " - "T1=%"PRIu32"sec, T2=%"PRIu32"sec", lt_t1, lt_t2); - } - - switch(option_code) { - case SD_DHCP6_OPTION_IA_NA: - *ret = (DHCP6IA) { - .type = option_code, - .ia_na.id = iaid, - .ia_na.lifetime_t1 = htobe32(lt_t1), - .ia_na.lifetime_t2 = htobe32(lt_t2), - .addresses = TAKE_PTR(ia.addresses), - }; - break; - case SD_DHCP6_OPTION_IA_TA: - *ret = (DHCP6IA) { - .type = option_code, - .ia_ta.id = iaid, - .addresses = TAKE_PTR(ia.addresses), - }; - break; - case SD_DHCP6_OPTION_IA_PD: - *ret = (DHCP6IA) { - .type = option_code, - .ia_pd.id = iaid, - .ia_pd.lifetime_t1 = htobe32(lt_t1), - .ia_pd.lifetime_t2 = htobe32(lt_t2), - .addresses = TAKE_PTR(ia.addresses), - }; - break; - default: - assert_not_reached(); - } - + *ret = TAKE_PTR(ia); return 0; } diff --git a/src/libnm-systemd-core/src/libsystemd-network/dhcp6-option.h b/src/libnm-systemd-core/src/libsystemd-network/dhcp6-option.h new file mode 100644 index 00000000..80aba7f3 --- /dev/null +++ b/src/libnm-systemd-core/src/libsystemd-network/dhcp6-option.h @@ -0,0 +1,104 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include "sd-dhcp6-client.h" + +#include "hash-funcs.h" +#include "list.h" +#include "macro.h" +#include "ordered-set.h" +#include "sparse-endian.h" + +typedef struct sd_dhcp6_option { + unsigned n_ref; + + uint32_t enterprise_identifier; + uint16_t option; + void *data; + size_t length; +} sd_dhcp6_option; + +extern const struct hash_ops dhcp6_option_hash_ops; + +/* Common option header */ +typedef struct DHCP6Option { + be16_t code; + be16_t len; + uint8_t data[]; +} _packed_ DHCP6Option; + +/* Address option */ +struct iaaddr { + struct in6_addr address; + be32_t lifetime_preferred; + be32_t lifetime_valid; +} _packed_; + +/* Prefix Delegation Prefix option */ +struct iapdprefix { + be32_t lifetime_preferred; + be32_t lifetime_valid; + uint8_t prefixlen; + struct in6_addr address; +} _packed_; + +typedef struct DHCP6Address DHCP6Address; + +struct DHCP6Address { + LIST_FIELDS(DHCP6Address, addresses); + + union { + struct iaaddr iaaddr; + struct iapdprefix iapdprefix; + }; +}; + +struct ia_header { + be32_t id; + be32_t lifetime_t1; + be32_t lifetime_t2; +} _packed_; + +typedef struct DHCP6IA { + uint16_t type; + struct ia_header header; + + LIST_HEAD(DHCP6Address, addresses); +} DHCP6IA; + +void dhcp6_ia_clear_addresses(DHCP6IA *ia); +DHCP6IA *dhcp6_ia_free(DHCP6IA *ia); +DEFINE_TRIVIAL_CLEANUP_FUNC(DHCP6IA*, dhcp6_ia_free); + +bool dhcp6_option_can_request(uint16_t option); + +int dhcp6_option_append(uint8_t **buf, size_t *buflen, uint16_t code, + size_t optlen, const void *optval); +int dhcp6_option_append_ia(uint8_t **buf, size_t *buflen, const DHCP6IA *ia); +int dhcp6_option_append_fqdn(uint8_t **buf, size_t *buflen, const char *fqdn); +int dhcp6_option_append_user_class(uint8_t **buf, size_t *buflen, char * const *user_class); +int dhcp6_option_append_vendor_class(uint8_t **buf, size_t *buflen, char * const *user_class); +int dhcp6_option_append_vendor_option(uint8_t **buf, size_t *buflen, OrderedSet *vendor_options); + +int dhcp6_option_parse( + const uint8_t *buf, + size_t buflen, + size_t *offset, + uint16_t *ret_option_code, + size_t *ret_option_data_len, + const uint8_t **ret_option_data); +int dhcp6_option_parse_status(const uint8_t *data, size_t data_len, char **ret_status_message); +int dhcp6_option_parse_ia( + sd_dhcp6_client *client, + be32_t iaid, + uint16_t option_code, + size_t option_data_len, + const uint8_t *option_data, + DHCP6IA **ret); +int dhcp6_option_parse_addresses( + const uint8_t *optval, + size_t optlen, + struct in6_addr **addrs, + size_t *count); +int dhcp6_option_parse_domainname_list(const uint8_t *optval, size_t optlen, char ***ret); +int dhcp6_option_parse_domainname(const uint8_t *optval, size_t optlen, char **ret); diff --git a/src/libnm-systemd-core/src/libsystemd-network/dhcp6-protocol.c b/src/libnm-systemd-core/src/libsystemd-network/dhcp6-protocol.c new file mode 100644 index 00000000..e19faa51 --- /dev/null +++ b/src/libnm-systemd-core/src/libsystemd-network/dhcp6-protocol.c @@ -0,0 +1,86 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include "nm-sd-adapt-core.h" + +#include "dhcp6-protocol.h" +#include "string-table.h" + +static const char * const dhcp6_state_table[_DHCP6_STATE_MAX] = { + [DHCP6_STATE_STOPPED] = "stopped", + [DHCP6_STATE_INFORMATION_REQUEST] = "information-request", + [DHCP6_STATE_SOLICITATION] = "solicitation", + [DHCP6_STATE_REQUEST] = "request", + [DHCP6_STATE_BOUND] = "bound", + [DHCP6_STATE_RENEW] = "renew", + [DHCP6_STATE_REBIND] = "rebind", +}; + +DEFINE_STRING_TABLE_LOOKUP_TO_STRING(dhcp6_state, DHCP6State); + +static const char * const dhcp6_message_type_table[_DHCP6_MESSAGE_TYPE_MAX] = { + [DHCP6_MESSAGE_SOLICIT] = "Solicit", + [DHCP6_MESSAGE_ADVERTISE] = "Advertise", + [DHCP6_MESSAGE_REQUEST] = "Request", + [DHCP6_MESSAGE_CONFIRM] = "Confirm", + [DHCP6_MESSAGE_RENEW] = "Renew", + [DHCP6_MESSAGE_REBIND] = "Rebind", + [DHCP6_MESSAGE_REPLY] = "Reply", + [DHCP6_MESSAGE_RELEASE] = "Release", + [DHCP6_MESSAGE_DECLINE] = "Decline", + [DHCP6_MESSAGE_RECONFIGURE] = "Reconfigure", + [DHCP6_MESSAGE_INFORMATION_REQUEST] = "Information Request", + [DHCP6_MESSAGE_RELAY_FORWARD] = "Relay Forward", + [DHCP6_MESSAGE_RELAY_REPLY] = "Relay Reply", + [DHCP6_MESSAGE_LEASE_QUERY] = "Lease Query", + [DHCP6_MESSAGE_LEASE_QUERY_REPLY] = "Lease Query Reply", + [DHCP6_MESSAGE_LEASE_QUERY_DONE] = "Lease Query Done", + [DHCP6_MESSAGE_LEASE_QUERY_DATA] = "Lease Query Data", + [DHCP6_MESSAGE_RECONFIGURE_REQUEST] = "Reconfigure Request", + [DHCP6_MESSAGE_RECONFIGURE_REPLY] = "Reconfigure Reply", + [DHCP6_MESSAGE_DHCPV4_QUERY] = "DHCPv4 Query", + [DHCP6_MESSAGE_DHCPV4_RESPONSE] = "DHCPv4 Response", + [DHCP6_MESSAGE_ACTIVE_LEASE_QUERY] = "Active Lease Query", + [DHCP6_MESSAGE_START_TLS] = "Start TLS", + [DHCP6_MESSAGE_BINDING_UPDATE] = "Binding Update", + [DHCP6_MESSAGE_BINDING_REPLY] = "Binding Reply", + [DHCP6_MESSAGE_POOL_REQUEST] = "Pool Request", + [DHCP6_MESSAGE_POOL_RESPONSE] = "Pool Response", + [DHCP6_MESSAGE_UPDATE_REQUEST] = "Update Request", + [DHCP6_MESSAGE_UPDATE_REQUEST_ALL] = "Update Request All", + [DHCP6_MESSAGE_UPDATE_DONE] = "Update Done", + [DHCP6_MESSAGE_CONNECT] = "Connect", + [DHCP6_MESSAGE_CONNECT_REPLY] = "Connect Reply", + [DHCP6_MESSAGE_DISCONNECT] = "Disconnect", + [DHCP6_MESSAGE_STATE] = "State", + [DHCP6_MESSAGE_CONTACT] = "Contact", +}; + +DEFINE_STRING_TABLE_LOOKUP(dhcp6_message_type, DHCP6MessageType); + +static const char * const dhcp6_message_status_table[_DHCP6_STATUS_MAX] = { + [DHCP6_STATUS_SUCCESS] = "Success", + [DHCP6_STATUS_UNSPEC_FAIL] = "Unspecified failure", + [DHCP6_STATUS_NO_ADDRS_AVAIL] = "No addresses available", + [DHCP6_STATUS_NO_BINDING] = "Binding unavailable", + [DHCP6_STATUS_NOT_ON_LINK] = "Not on link", + [DHCP6_STATUS_USE_MULTICAST] = "Use multicast", + [DHCP6_STATUS_NO_PREFIX_AVAIL] = "No prefix available", + [DHCP6_STATUS_UNKNOWN_QUERY_TYPE] = "Unknown query type", + [DHCP6_STATUS_MALFORMED_QUERY] = "Malformed query", + [DHCP6_STATUS_NOT_CONFIGURED] = "Not configured", + [DHCP6_STATUS_NOT_ALLOWED] = "Not allowed", + [DHCP6_STATUS_QUERY_TERMINATED] = "Query terminated", + [DHCP6_STATUS_DATA_MISSING] = "Data missing", + [DHCP6_STATUS_CATCHUP_COMPLETE] = "Catch up complete", + [DHCP6_STATUS_NOT_SUPPORTED] = "Not supported", + [DHCP6_STATUS_TLS_CONNECTION_REFUSED] = "TLS connection refused", + [DHCP6_STATUS_ADDRESS_IN_USE] = "Address in use", + [DHCP6_STATUS_CONFIGURATION_CONFLICT] = "Configuration conflict", + [DHCP6_STATUS_MISSING_BINDING_INFORMATION] = "Missing binding information", + [DHCP6_STATUS_OUTDATED_BINDING_INFORMATION] = "Outdated binding information", + [DHCP6_STATUS_SERVER_SHUTTING_DOWN] = "Server shutting down", + [DHCP6_STATUS_DNS_UPDATE_NOT_SUPPORTED] = "DNS update not supported", + [DHCP6_STATUS_EXCESSIVE_TIME_SKEW] = "Excessive time skew", +}; + +DEFINE_STRING_TABLE_LOOKUP(dhcp6_message_status, DHCP6Status); diff --git a/src/libnm-systemd-core/src/libsystemd-network/dhcp6-protocol.h b/src/libnm-systemd-core/src/libsystemd-network/dhcp6-protocol.h index 5d2af439..f4e47857 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/dhcp6-protocol.h +++ b/src/libnm-systemd-core/src/libsystemd-network/dhcp6-protocol.h @@ -28,8 +28,8 @@ typedef struct DHCP6Message DHCP6Message; #define DHCP6_MIN_OPTIONS_SIZE \ 1280 - sizeof(struct ip6_hdr) - sizeof(struct udphdr) -#define IN6ADDR_ALL_DHCP6_RELAY_AGENTS_AND_SERVERS_INIT \ - { { { 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ +#define IN6ADDR_ALL_DHCP6_RELAY_AGENTS_AND_SERVERS_INIT \ + { { { 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x02 } } } enum { @@ -100,13 +100,15 @@ typedef enum DHCP6MessageType { DHCP6_MESSAGE_STATE = 34, /* RFC 8156 */ DHCP6_MESSAGE_CONTACT = 35, /* RFC 8156 */ _DHCP6_MESSAGE_TYPE_MAX, - _DHCP6_MESSAGE_TYPE_INVALID = -EINVAL, + _DHCP6_MESSAGE_TYPE_INVALID = -EINVAL, } DHCP6MessageType; typedef enum DHCP6NTPSubOption { DHCP6_NTP_SUBOPTION_SRV_ADDR = 1, DHCP6_NTP_SUBOPTION_MC_ADDR = 2, DHCP6_NTP_SUBOPTION_SRV_FQDN = 3, + _DHCP6_NTP_SUBOPTION_MAX, + _DHCP6_NTP_SUBOPTION_INVALID = -EINVAL, } DHCP6NTPSubOption; /* @@ -138,7 +140,7 @@ typedef enum DHCP6Status { DHCP6_STATUS_DNS_UPDATE_NOT_SUPPORTED = 21, DHCP6_STATUS_EXCESSIVE_TIME_SKEW = 22, _DHCP6_STATUS_MAX, - _DHCP6_STATUS_INVALID = -EINVAL, + _DHCP6_STATUS_INVALID = -EINVAL, } DHCP6Status; typedef enum DHCP6FQDNFlag { @@ -146,3 +148,9 @@ typedef enum DHCP6FQDNFlag { DHCP6_FQDN_FLAG_O = 1 << 1, DHCP6_FQDN_FLAG_N = 1 << 2, } DHCP6FQDNFlag; + +const char *dhcp6_state_to_string(DHCP6State s) _const_; +const char *dhcp6_message_type_to_string(DHCP6MessageType s) _const_; +DHCP6MessageType dhcp6_message_type_from_string(const char *s) _pure_; +const char *dhcp6_message_status_to_string(DHCP6Status s) _const_; +DHCP6Status dhcp6_message_status_from_string(const char *s) _pure_; diff --git a/src/libnm-systemd-core/src/libsystemd-network/lldp-neighbor.c b/src/libnm-systemd-core/src/libsystemd-network/lldp-neighbor.c index b4d7c327..f56929ad 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/lldp-neighbor.c +++ b/src/libnm-systemd-core/src/libsystemd-network/lldp-neighbor.c @@ -335,9 +335,9 @@ void lldp_neighbor_start_ttl(sd_lldp_neighbor *n) { usec_t base; /* Use the packet's timestamp if there is one known */ - base = triple_timestamp_by_clock(&n->timestamp, clock_boottime_or_monotonic()); - if (base <= 0 || base == USEC_INFINITY) - base = now(clock_boottime_or_monotonic()); /* Otherwise, take the current time */ + base = triple_timestamp_by_clock(&n->timestamp, CLOCK_BOOTTIME); + if (!timestamp_is_set(base)) + base = now(CLOCK_BOOTTIME); /* Otherwise, take the current time */ n->until = usec_add(base, n->ttl * USEC_PER_SEC); } else diff --git a/src/libnm-systemd-core/src/libsystemd-network/network-internal.h b/src/libnm-systemd-core/src/libsystemd-network/network-internal.h index 895a00d0..5aa225e9 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/network-internal.h +++ b/src/libnm-systemd-core/src/libsystemd-network/network-internal.h @@ -21,7 +21,7 @@ int deserialize_in6_addrs(struct in6_addr **addresses, const char *string); struct sd_dhcp_route; struct sd_dhcp_lease; -void serialize_dhcp_routes(FILE *f, const char *key, sd_dhcp_route **routes, size_t size); +void serialize_dhcp_routes(FILE *f, const char *key, struct sd_dhcp_route **routes, size_t size); int deserialize_dhcp_routes(struct sd_dhcp_route **ret, size_t *ret_size, const char *string); /* It is not necessary to add deserialize_dhcp_option(). Use unhexmem() instead. */ diff --git a/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp-client.c b/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp-client.c index 1600f806..d56978ad 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp-client.c +++ b/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp-client.c @@ -147,11 +147,11 @@ static const uint8_t default_req_opts_anonymize[] = { SD_DHCP_OPTION_ROUTER, /* 3 */ SD_DHCP_OPTION_DOMAIN_NAME_SERVER, /* 6 */ SD_DHCP_OPTION_DOMAIN_NAME, /* 15 */ - SD_DHCP_OPTION_ROUTER_DISCOVER, /* 31 */ + SD_DHCP_OPTION_ROUTER_DISCOVERY, /* 31 */ SD_DHCP_OPTION_STATIC_ROUTE, /* 33 */ SD_DHCP_OPTION_VENDOR_SPECIFIC, /* 43 */ - SD_DHCP_OPTION_NETBIOS_NAMESERVER, /* 44 */ - SD_DHCP_OPTION_NETBIOS_NODETYPE, /* 46 */ + SD_DHCP_OPTION_NETBIOS_NAME_SERVER, /* 44 */ + SD_DHCP_OPTION_NETBIOS_NODE_TYPE, /* 46 */ SD_DHCP_OPTION_NETBIOS_SCOPE, /* 47 */ SD_DHCP_OPTION_CLASSLESS_STATIC_ROUTE, /* 121 */ SD_DHCP_OPTION_PRIVATE_CLASSLESS_STATIC_ROUTE, /* 249 */ @@ -249,7 +249,7 @@ int sd_dhcp_client_set_request_option(sd_dhcp_client *client, uint8_t option) { assert_return(client, -EINVAL); assert_return(IN_SET(client->state, DHCP_STATE_INIT, DHCP_STATE_STOPPED), -EBUSY); - switch(option) { + switch (option) { case SD_DHCP_OPTION_PAD: case SD_DHCP_OPTION_OVERLOAD: @@ -454,7 +454,7 @@ static int dhcp_client_set_iaid_duid_internal( bool iaid_append, bool iaid_set, uint32_t iaid, - uint16_t duid_type, + DUIDType duid_type, const void *duid, size_t duid_len, usec_t llt_time) { @@ -493,37 +493,20 @@ static int dhcp_client_set_iaid_duid_internal( client->client_id.ns.duid.type = htobe16(duid_type); memcpy(&client->client_id.ns.duid.raw.data, duid, duid_len); len = sizeof(client->client_id.ns.duid.type) + duid_len; - } else - switch (duid_type) { - case DUID_TYPE_LLT: - if (client->mac_addr_len == 0) - return log_dhcp_client_errno(client, SYNTHETIC_ERRNO(EOPNOTSUPP), "Failed to set DUID-LLT, MAC address is not set."); - r = dhcp_identifier_set_duid_llt(&client->client_id.ns.duid, llt_time, client->mac_addr, client->mac_addr_len, client->arp_type, &len); - if (r < 0) - return log_dhcp_client_errno(client, r, "Failed to set DUID-LLT: %m"); - break; - case DUID_TYPE_EN: - r = dhcp_identifier_set_duid_en(&client->client_id.ns.duid, &len); - if (r < 0) - return log_dhcp_client_errno(client, r, "Failed to set DUID-EN: %m"); - break; - case DUID_TYPE_LL: - if (client->mac_addr_len == 0) - return log_dhcp_client_errno(client, SYNTHETIC_ERRNO(EOPNOTSUPP), "Failed to set DUID-LL, MAC address is not set."); - - r = dhcp_identifier_set_duid_ll(&client->client_id.ns.duid, client->mac_addr, client->mac_addr_len, client->arp_type, &len); - if (r < 0) - return log_dhcp_client_errno(client, r, "Failed to set DUID-LL: %m"); - break; - case DUID_TYPE_UUID: - r = dhcp_identifier_set_duid_uuid(&client->client_id.ns.duid, &len); - if (r < 0) - return log_dhcp_client_errno(client, r, "Failed to set DUID-UUID: %m"); - break; - default: - return log_dhcp_client_errno(client, SYNTHETIC_ERRNO(EINVAL), "Invalid DUID type"); - } + } else { + r = dhcp_identifier_set_duid(duid_type, client->mac_addr, client->mac_addr_len, + client->arp_type, llt_time, client->test_mode, + &client->client_id.ns.duid, &len); + if (r == -EOPNOTSUPP) + return log_dhcp_client_errno(client, r, + "Failed to set %s. MAC address is not set or " + "interface type is not supported.", + duid_type_to_string(duid_type)); + if (r < 0) + return log_dhcp_client_errno(client, r, "Failed to set %s: %m", + duid_type_to_string(duid_type)); + } client->client_id_len = sizeof(client->client_id.type) + len + (iaid_append ? sizeof(client->client_id.ns.iaid) : 0); @@ -617,7 +600,6 @@ int sd_dhcp_client_set_user_class( sd_dhcp_client *client, char * const *user_class) { - char * const *p; char **s = NULL; assert_return(client, -EINVAL); @@ -844,7 +826,7 @@ static int client_message_init( /* Although 'secs' field is a SHOULD in RFC 2131, certain DHCP servers refuse to issue an DHCP lease if 'secs' is set to zero */ - r = sd_event_now(client->event, clock_boottime_or_monotonic(), &time_now); + r = sd_event_now(client->event, CLOCK_BOOTTIME, &time_now); if (r < 0) return r; assert(time_now >= client->start_time); @@ -881,7 +863,7 @@ static int client_message_init( if (r < 0) return r; - r = dhcp_identifier_set_duid_en(&client->client_id.ns.duid, &duid_len); + r = dhcp_identifier_set_duid_en(client->test_mode, &client->client_id.ns.duid, &duid_len); if (r < 0) return r; @@ -1269,7 +1251,7 @@ static int client_timeout_resend( assert(client); assert(client->event); - r = sd_event_now(client->event, clock_boottime_or_monotonic(), &time_now); + r = sd_event_now(client->event, CLOCK_BOOTTIME, &time_now); if (r < 0) goto error; @@ -1317,7 +1299,7 @@ static int client_timeout_resend( } r = event_reset_time(client->event, &client->timeout_resend, - clock_boottime_or_monotonic(), + CLOCK_BOOTTIME, next_timeout, 10 * USEC_PER_MSEC, client_timeout_resend, client, client->event_priority, "dhcp4-resend-timer", true); @@ -1417,12 +1399,12 @@ static int client_initialize_time_events(sd_dhcp_client *client) { assert(client->event); if (client->start_delay > 0) { - assert_se(sd_event_now(client->event, clock_boottime_or_monotonic(), &usec) >= 0); + assert_se(sd_event_now(client->event, CLOCK_BOOTTIME, &usec) >= 0); usec += client->start_delay; } r = event_reset_time(client->event, &client->timeout_resend, - clock_boottime_or_monotonic(), + CLOCK_BOOTTIME, usec, 0, client_timeout_resend, client, client->event_priority, "dhcp4-resend-timer", true); @@ -1463,7 +1445,7 @@ static int client_start_delayed(sd_dhcp_client *client) { client->fd = r; if (IN_SET(client->state, DHCP_STATE_INIT, DHCP_STATE_INIT_REBOOT)) - client->start_time = now(clock_boottime_or_monotonic()); + client->start_time = now(CLOCK_BOOTTIME); return client_initialize_events(client, client_receive_message_raw); } @@ -1707,7 +1689,7 @@ static int client_set_lease_timeouts(sd_dhcp_client *client) { return 0; } - r = sd_event_now(client->event, clock_boottime_or_monotonic(), &time_now); + r = sd_event_now(client->event, CLOCK_BOOTTIME, &time_now); if (r < 0) return r; assert(client->request_sent <= time_now); @@ -1740,7 +1722,7 @@ static int client_set_lease_timeouts(sd_dhcp_client *client) { /* arm lifetime timeout */ r = event_reset_time(client->event, &client->timeout_expire, - clock_boottime_or_monotonic(), + CLOCK_BOOTTIME, client->expire_time, 10 * USEC_PER_MSEC, client_timeout_expire, client, client->event_priority, "dhcp4-lifetime", true); @@ -1756,7 +1738,7 @@ static int client_set_lease_timeouts(sd_dhcp_client *client) { /* arm T2 timeout */ r = event_reset_time(client->event, &client->timeout_t2, - clock_boottime_or_monotonic(), + CLOCK_BOOTTIME, client->t2_time, 10 * USEC_PER_MSEC, client_timeout_t2, client, client->event_priority, "dhcp4-t2-timeout", true); @@ -1772,7 +1754,7 @@ static int client_set_lease_timeouts(sd_dhcp_client *client) { /* arm T1 timeout */ r = event_reset_time(client->event, &client->timeout_t1, - clock_boottime_or_monotonic(), + CLOCK_BOOTTIME, client->t1_time, 10 * USEC_PER_MSEC, client_timeout_t1, client, client->event_priority, "dhcp4-t1-timer", true); @@ -1807,7 +1789,7 @@ static int client_handle_message(sd_dhcp_client *client, DHCPMessage *message, i client->attempt = 0; r = event_reset_time(client->event, &client->timeout_resend, - clock_boottime_or_monotonic(), + CLOCK_BOOTTIME, 0, 0, client_timeout_resend, client, client->event_priority, "dhcp4-resend-timer", true); diff --git a/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp-lease.c b/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp-lease.c index 7a250534..5f83fa66 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp-lease.c +++ b/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp-lease.c @@ -217,25 +217,38 @@ int sd_dhcp_lease_get_next_server(sd_dhcp_lease *lease, struct in_addr *addr) { * The returned routes array must be freed by the caller. * Route objects have the same lifetime of the lease and must not be freed. */ -int sd_dhcp_lease_get_routes(sd_dhcp_lease *lease, sd_dhcp_route ***routes) { - sd_dhcp_route **ret; - unsigned i; +static int dhcp_lease_get_routes(sd_dhcp_route *routes, size_t n_routes, sd_dhcp_route ***ret) { + assert(routes || n_routes == 0); - assert_return(lease, -EINVAL); - assert_return(routes, -EINVAL); - - if (lease->static_route_size <= 0) + if (n_routes <= 0) return -ENODATA; - ret = new(sd_dhcp_route *, lease->static_route_size); - if (!ret) - return -ENOMEM; + if (ret) { + sd_dhcp_route **buf; + + buf = new(sd_dhcp_route*, n_routes); + if (!buf) + return -ENOMEM; + + for (size_t i = 0; i < n_routes; i++) + buf[i] = &routes[i]; + + *ret = buf; + } - for (i = 0; i < lease->static_route_size; i++) - ret[i] = &lease->static_route[i]; + return (int) n_routes; +} + +int sd_dhcp_lease_get_static_routes(sd_dhcp_lease *lease, sd_dhcp_route ***ret) { + assert_return(lease, -EINVAL); + + return dhcp_lease_get_routes(lease->static_routes, lease->n_static_routes, ret); +} + +int sd_dhcp_lease_get_classless_routes(sd_dhcp_lease *lease, sd_dhcp_route ***ret) { + assert_return(lease, -EINVAL); - *routes = ret; - return (int) lease->static_route_size; + return dhcp_lease_get_routes(lease->classless_routes, lease->n_classless_routes, ret); } int sd_dhcp_lease_get_search_domains(sd_dhcp_lease *lease, char ***domains) { @@ -314,7 +327,8 @@ static sd_dhcp_lease *dhcp_lease_free(sd_dhcp_lease *lease) { for (sd_dhcp_lease_server_type_t i = 0; i < _SD_DHCP_LEASE_SERVER_TYPE_MAX; i++) free(lease->servers[i].addr); - free(lease->static_route); + free(lease->static_routes); + free(lease->classless_routes); free(lease->client_id); free(lease->vendor_specific); strv_free(lease->search_domains); @@ -469,96 +483,88 @@ static int lease_parse_sip_server(const uint8_t *option, size_t len, struct in_a return lease_parse_in_addrs(option + 1, len - 1, ret, n_ret); } -static int lease_parse_routes( - const uint8_t *option, size_t len, - struct sd_dhcp_route **routes, size_t *routes_size) { - - struct in_addr addr; +static int lease_parse_static_routes(sd_dhcp_lease *lease, const uint8_t *option, size_t len) { + int r; + assert(lease); assert(option || len <= 0); - assert(routes); - assert(routes_size); - - if (len <= 0) - return 0; if (len % 8 != 0) return -EINVAL; - if (!GREEDY_REALLOC(*routes, *routes_size + (len / 8))) - return -ENOMEM; - while (len >= 8) { - struct sd_dhcp_route *route = *routes + *routes_size; - int r; + struct in_addr dst, gw; + uint8_t prefixlen; - route->option = SD_DHCP_OPTION_STATIC_ROUTE; - r = in4_addr_default_prefixlen((struct in_addr*) option, &route->dst_prefixlen); + assert_se(lease_parse_be32(option, 4, &dst.s_addr) >= 0); + option += 4; + + assert_se(lease_parse_be32(option, 4, &gw.s_addr) >= 0); + option += 4; + + len -= 8; + + r = in4_addr_default_prefixlen(&dst, &prefixlen); if (r < 0) { - log_debug("Failed to determine destination prefix length from class based IP, ignoring"); + log_debug("sd-dhcp-lease: cannot determine class of received static route, ignoring."); continue; } - assert_se(lease_parse_be32(option, 4, &addr.s_addr) >= 0); - route->dst_addr = inet_makeaddr(inet_netof(addr), 0); - option += 4; + (void) in4_addr_mask(&dst, prefixlen); - assert_se(lease_parse_be32(option, 4, &route->gw_addr.s_addr) >= 0); - option += 4; + if (!GREEDY_REALLOC(lease->static_routes, lease->n_static_routes + 1)) + return -ENOMEM; - len -= 8; - (*routes_size)++; + lease->static_routes[lease->n_static_routes++] = (struct sd_dhcp_route) { + .dst_addr = dst, + .gw_addr = gw, + .dst_prefixlen = prefixlen, + }; } return 0; } /* parses RFC3442 Classless Static Route Option */ -static int lease_parse_classless_routes( - const uint8_t *option, size_t len, - struct sd_dhcp_route **routes, size_t *routes_size) { - +static int lease_parse_classless_routes(sd_dhcp_lease *lease, const uint8_t *option, size_t len) { + assert(lease); assert(option || len <= 0); - assert(routes); - assert(routes_size); - if (len <= 0) - return 0; - - /* option format: (subnet-mask-width significant-subnet-octets gateway-ip)* */ + /* option format: (subnet-mask-width significant-subnet-octets gateway-ip) */ while (len > 0) { - uint8_t dst_octets; - struct sd_dhcp_route *route; - - if (!GREEDY_REALLOC(*routes, *routes_size + 1)) - return -ENOMEM; - - route = *routes + *routes_size; - route->option = SD_DHCP_OPTION_CLASSLESS_STATIC_ROUTE; + uint8_t prefixlen, dst_octets; + struct in_addr dst = {}, gw; - dst_octets = (*option == 0 ? 0 : ((*option - 1) / 8) + 1); - route->dst_prefixlen = *option; + prefixlen = *option; option++; len--; + dst_octets = DIV_ROUND_UP(prefixlen, 8); + /* can't have more than 4 octets in IPv4 */ if (dst_octets > 4 || len < dst_octets) return -EINVAL; - route->dst_addr.s_addr = 0; - memcpy(&route->dst_addr.s_addr, option, dst_octets); + memcpy(&dst, option, dst_octets); option += dst_octets; len -= dst_octets; if (len < 4) return -EINVAL; - assert_se(lease_parse_be32(option, 4, &route->gw_addr.s_addr) >= 0); + assert_se(lease_parse_be32(option, 4, &gw.s_addr) >= 0); option += 4; len -= 4; - (*routes_size)++; + if (!GREEDY_REALLOC(lease->classless_routes, lease->n_classless_routes + 1)) + return -ENOMEM; + + lease->classless_routes[lease->n_classless_routes++] = (struct sd_dhcp_route) { + .dst_addr = dst, + .gw_addr = gw, + .dst_prefixlen = prefixlen, + }; } return 0; @@ -625,7 +631,7 @@ int dhcp_lease_parse_options(uint8_t code, uint8_t len, const void *option, void assert(lease); - switch(code) { + switch (code) { case SD_DHCP_OPTION_IP_ADDRESS_LEASE_TIME: r = lease_parse_u32(option, len, &lease->lifetime, 1); @@ -700,12 +706,12 @@ int dhcp_lease_parse_options(uint8_t code, uint8_t len, const void *option, void break; case SD_DHCP_OPTION_STATIC_ROUTE: - r = lease_parse_routes(option, len, &lease->static_route, &lease->static_route_size); + r = lease_parse_static_routes(lease, option, len); if (r < 0) log_debug_errno(r, "Failed to parse static routes, ignoring: %m"); break; - case SD_DHCP_OPTION_INTERFACE_MTU: + case SD_DHCP_OPTION_MTU_INTERFACE: r = lease_parse_u16(option, len, &lease->mtu, 68); if (r < 0) log_debug_errno(r, "Failed to parse MTU, ignoring: %m"); @@ -725,7 +731,7 @@ int dhcp_lease_parse_options(uint8_t code, uint8_t len, const void *option, void break; - case SD_DHCP_OPTION_DOMAIN_SEARCH_LIST: + case SD_DHCP_OPTION_DOMAIN_SEARCH: r = dhcp_lease_parse_search_domains(option, len, &lease->search_domains); if (r < 0) log_debug_errno(r, "Failed to parse Domain Search List, ignoring: %m"); @@ -746,28 +752,25 @@ int dhcp_lease_parse_options(uint8_t code, uint8_t len, const void *option, void log_debug_errno(r, "Failed to parse root path, ignoring: %m"); break; - case SD_DHCP_OPTION_RENEWAL_T1_TIME: + case SD_DHCP_OPTION_RENEWAL_TIME: r = lease_parse_u32(option, len, &lease->t1, 1); if (r < 0) log_debug_errno(r, "Failed to parse T1 time, ignoring: %m"); break; - case SD_DHCP_OPTION_REBINDING_T2_TIME: + case SD_DHCP_OPTION_REBINDING_TIME: r = lease_parse_u32(option, len, &lease->t2, 1); if (r < 0) log_debug_errno(r, "Failed to parse T2 time, ignoring: %m"); break; case SD_DHCP_OPTION_CLASSLESS_STATIC_ROUTE: - r = lease_parse_classless_routes( - option, len, - &lease->static_route, - &lease->static_route_size); + r = lease_parse_classless_routes(lease, option, len); if (r < 0) log_debug_errno(r, "Failed to parse classless routes, ignoring: %m"); break; - case SD_DHCP_OPTION_NEW_TZDB_TIMEZONE: { + case SD_DHCP_OPTION_TZDB_TIMEZONE: { _cleanup_free_ char *tz = NULL; r = lease_parse_string(option, len, &tz); @@ -909,19 +912,21 @@ int dhcp_lease_parse_search_domains(const uint8_t *option, size_t len, char ***d pos = next_chunk; } - *domains = TAKE_PTR(names); + strv_free_and_replace(*domains, names); return cnt; } int dhcp_lease_insert_private_option(sd_dhcp_lease *lease, uint8_t tag, const void *data, uint8_t len) { - struct sd_dhcp_raw_option *cur, *option; + struct sd_dhcp_raw_option *option, *before = NULL; assert(lease); LIST_FOREACH(options, cur, lease->private_options) { - if (tag < cur->tag) + if (tag < cur->tag) { + before = cur; break; + } if (tag == cur->tag) { log_debug("Ignoring duplicate option, tagged %i.", tag); return 0; @@ -940,7 +945,7 @@ int dhcp_lease_insert_private_option(sd_dhcp_lease *lease, uint8_t tag, const vo return -ENOMEM; } - LIST_INSERT_BEFORE(options, lease->private_options, cur, option); + LIST_INSERT_BEFORE(options, lease->private_options, before, option); return 0; } @@ -960,7 +965,6 @@ int dhcp_lease_new(sd_dhcp_lease **ret) { int dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file) { _cleanup_(unlink_and_freep) char *temp_path = NULL; _cleanup_fclose_ FILE *f = NULL; - struct sd_dhcp_raw_option *option; struct in_addr address; const struct in_addr *addresses; const void *client_id, *data; @@ -969,7 +973,7 @@ int dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file) { const char *string; uint16_t mtu; _cleanup_free_ sd_dhcp_route **routes = NULL; - char **search_domains = NULL; + char **search_domains; uint32_t t1, t2, lifetime; int r; @@ -1068,9 +1072,14 @@ int dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file) { if (r >= 0) fprintf(f, "ROOT_PATH=%s\n", string); - r = sd_dhcp_lease_get_routes(lease, &routes); + r = sd_dhcp_lease_get_static_routes(lease, &routes); + if (r > 0) + serialize_dhcp_routes(f, "STATIC_ROUTES", routes, r); + + routes = mfree(routes); + r = sd_dhcp_lease_get_classless_routes(lease, &routes); if (r > 0) - serialize_dhcp_routes(f, "ROUTES", routes, r); + serialize_dhcp_routes(f, "CLASSLESS_ROUTES", routes, r); r = sd_dhcp_lease_get_timezone(lease, &string); if (r >= 0) @@ -1118,6 +1127,18 @@ int dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file) { return 0; } +static char **private_options_free(char **options) { + if (!options) + return NULL; + + for (unsigned i = 0; i < SD_DHCP_OPTION_PRIVATE_LAST - SD_DHCP_OPTION_PRIVATE_BASE + 1; i++) + free(options[i]); + + return mfree(options); +} + +DEFINE_TRIVIAL_CLEANUP_FUNC(char**, private_options_free); + int dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file) { _cleanup_(sd_dhcp_lease_unrefp) sd_dhcp_lease *lease = NULL; _cleanup_free_ char @@ -1134,14 +1155,15 @@ int dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file) { *smtp = NULL, *lpr = NULL, *mtu = NULL, - *routes = NULL, + *static_routes = NULL, + *classless_routes = NULL, *domains = NULL, *client_id_hex = NULL, *vendor_specific_hex = NULL, *lifetime = NULL, *t1 = NULL, - *t2 = NULL, - *options[SD_DHCP_OPTION_PRIVATE_LAST - SD_DHCP_OPTION_PRIVATE_BASE + 1] = {}; + *t2 = NULL; + _cleanup_(private_options_freep) char **options = NULL; int r, i; @@ -1152,6 +1174,10 @@ int dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file) { if (r < 0) return r; + options = new0(char*, SD_DHCP_OPTION_PRIVATE_LAST - SD_DHCP_OPTION_PRIVATE_BASE + 1); + if (!options) + return -ENOMEM; + r = parse_env_file(NULL, lease_file, "ADDRESS", &address, "ROUTER", &router, @@ -1170,7 +1196,8 @@ int dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file) { "HOSTNAME", &lease->hostname, "DOMAIN_SEARCH_LIST", &domains, "ROOT_PATH", &lease->root_path, - "ROUTES", &routes, + "STATIC_ROUTES", &static_routes, + "CLASSLESS_ROUTES", &classless_routes, "CLIENTID", &client_id_hex, "TIMEZONE", &lease->timezone, "VENDOR_SPECIFIC", &vendor_specific_hex, @@ -1317,13 +1344,22 @@ int dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file) { lease->search_domains = TAKE_PTR(a); } - if (routes) { + if (static_routes) { r = deserialize_dhcp_routes( - &lease->static_route, - &lease->static_route_size, - routes); + &lease->static_routes, + &lease->n_static_routes, + static_routes); if (r < 0) - log_debug_errno(r, "Failed to parse DHCP routes %s, ignoring: %m", routes); + log_debug_errno(r, "Failed to parse DHCP static routes %s, ignoring: %m", static_routes); + } + + if (classless_routes) { + r = deserialize_dhcp_routes( + &lease->classless_routes, + &lease->n_classless_routes, + classless_routes); + if (r < 0) + log_debug_errno(r, "Failed to parse DHCP classless routes %s, ignoring: %m", classless_routes); } if (lifetime) { @@ -1470,9 +1506,3 @@ int sd_dhcp_route_get_gateway(sd_dhcp_route *route, struct in_addr *gateway) { *gateway = route->gw_addr; return 0; } - -int sd_dhcp_route_get_option(sd_dhcp_route *route) { - assert_return(route, -EINVAL); - - return route->option; -} diff --git a/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-client.c b/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-client.c index 0c2206ff..4394ef49 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-client.c +++ b/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-client.c @@ -20,7 +20,6 @@ #include "dhcp-identifier.h" #include "dhcp6-internal.h" #include "dhcp6-lease-internal.h" -#include "dhcp6-protocol.h" #include "dns-domain.h" #include "event-util.h" #include "fd-util.h" @@ -28,74 +27,11 @@ #include "hostname-util.h" #include "in-addr-util.h" #include "io-util.h" -#include "network-common.h" #include "random-util.h" #include "socket-util.h" -#include "string-table.h" #include "strv.h" -#include "util.h" #include "web-util.h" -#define MAX_MAC_ADDR_LEN INFINIBAND_ALEN - -#define IRT_DEFAULT (1 * USEC_PER_DAY) -#define IRT_MINIMUM (600 * USEC_PER_SEC) - -/* what to request from the server, addresses (IA_NA) and/or prefixes (IA_PD) */ -typedef enum DHCP6RequestIA { - DHCP6_REQUEST_IA_NA = 1 << 0, - DHCP6_REQUEST_IA_TA = 1 << 1, /* currently not used */ - DHCP6_REQUEST_IA_PD = 1 << 2, -} DHCP6RequestIA; - -struct sd_dhcp6_client { - unsigned n_ref; - - DHCP6State state; - sd_event *event; - int event_priority; - int ifindex; - char *ifname; - DHCP6Address hint_pd_prefix; - struct in6_addr local_address; - uint8_t mac_addr[MAX_MAC_ADDR_LEN]; - size_t mac_addr_len; - uint16_t arp_type; - DHCP6IA ia_na; - DHCP6IA ia_pd; - sd_event_source *timeout_t1; - sd_event_source *timeout_t2; - DHCP6RequestIA request_ia; - be32_t transaction_id; - usec_t transaction_start; - struct sd_dhcp6_lease *lease; - int fd; - bool information_request; - bool iaid_set; - be16_t *req_opts; - size_t req_opts_len; - char *fqdn; - char *mudurl; - char **user_class; - char **vendor_class; - sd_event_source *receive_message; - usec_t retransmit_time; - uint8_t retransmit_count; - sd_event_source *timeout_resend; - sd_event_source *timeout_resend_expire; - sd_dhcp6_client_callback_t callback; - void *userdata; - struct duid duid; - size_t duid_len; - usec_t information_request_time_usec; - usec_t information_refresh_time_usec; - OrderedHashmap *extra_options; - OrderedHashmap *vendor_options; - - /* Ignore ifindex when generating iaid. See dhcp_identifier_set_iaid(). */ - bool test_mode; -}; - static const uint16_t default_req_opts[] = { SD_DHCP6_OPTION_DNS_SERVERS, SD_DHCP6_OPTION_DOMAIN_LIST, @@ -103,78 +39,10 @@ static const uint16_t default_req_opts[] = { SD_DHCP6_OPTION_SNTP_SERVERS, }; -const char * dhcp6_message_type_table[_DHCP6_MESSAGE_TYPE_MAX] = { - [DHCP6_MESSAGE_SOLICIT] = "Solicit", - [DHCP6_MESSAGE_ADVERTISE] = "Advertise", - [DHCP6_MESSAGE_REQUEST] = "Request", - [DHCP6_MESSAGE_CONFIRM] = "Confirm", - [DHCP6_MESSAGE_RENEW] = "Renew", - [DHCP6_MESSAGE_REBIND] = "Rebind", - [DHCP6_MESSAGE_REPLY] = "Reply", - [DHCP6_MESSAGE_RELEASE] = "Release", - [DHCP6_MESSAGE_DECLINE] = "Decline", - [DHCP6_MESSAGE_RECONFIGURE] = "Reconfigure", - [DHCP6_MESSAGE_INFORMATION_REQUEST] = "Information Request", - [DHCP6_MESSAGE_RELAY_FORWARD] = "Relay Forward", - [DHCP6_MESSAGE_RELAY_REPLY] = "Relay Reply", - [DHCP6_MESSAGE_LEASE_QUERY] = "Lease Query", - [DHCP6_MESSAGE_LEASE_QUERY_REPLY] = "Lease Query Reply", - [DHCP6_MESSAGE_LEASE_QUERY_DONE] = "Lease Query Done", - [DHCP6_MESSAGE_LEASE_QUERY_DATA] = "Lease Query Data", - [DHCP6_MESSAGE_RECONFIGURE_REQUEST] = "Reconfigure Request", - [DHCP6_MESSAGE_RECONFIGURE_REPLY] = "Reconfigure Reply", - [DHCP6_MESSAGE_DHCPV4_QUERY] = "DHCPv4 Query", - [DHCP6_MESSAGE_DHCPV4_RESPONSE] = "DHCPv4 Response", - [DHCP6_MESSAGE_ACTIVE_LEASE_QUERY] = "Active Lease Query", - [DHCP6_MESSAGE_START_TLS] = "Start TLS", - [DHCP6_MESSAGE_BINDING_UPDATE] = "Binding Update", - [DHCP6_MESSAGE_BINDING_REPLY] = "Binding Reply", - [DHCP6_MESSAGE_POOL_REQUEST] = "Pool Request", - [DHCP6_MESSAGE_POOL_RESPONSE] = "Pool Response", - [DHCP6_MESSAGE_UPDATE_REQUEST] = "Update Request", - [DHCP6_MESSAGE_UPDATE_REQUEST_ALL] = "Update Request All", - [DHCP6_MESSAGE_UPDATE_DONE] = "Update Done", - [DHCP6_MESSAGE_CONNECT] = "Connect", - [DHCP6_MESSAGE_CONNECT_REPLY] = "Connect Reply", - [DHCP6_MESSAGE_DISCONNECT] = "Disconnect", - [DHCP6_MESSAGE_STATE] = "State", - [DHCP6_MESSAGE_CONTACT] = "Contact", -}; - -DEFINE_STRING_TABLE_LOOKUP(dhcp6_message_type, int); - -const char * dhcp6_message_status_table[_DHCP6_STATUS_MAX] = { - [DHCP6_STATUS_SUCCESS] = "Success", - [DHCP6_STATUS_UNSPEC_FAIL] = "Unspecified failure", - [DHCP6_STATUS_NO_ADDRS_AVAIL] = "No addresses available", - [DHCP6_STATUS_NO_BINDING] = "Binding unavailable", - [DHCP6_STATUS_NOT_ON_LINK] = "Not on link", - [DHCP6_STATUS_USE_MULTICAST] = "Use multicast", - [DHCP6_STATUS_NO_PREFIX_AVAIL] = "No prefix available", - [DHCP6_STATUS_UNKNOWN_QUERY_TYPE] = "Unknown query type", - [DHCP6_STATUS_MALFORMED_QUERY] = "Malformed query", - [DHCP6_STATUS_NOT_CONFIGURED] = "Not configured", - [DHCP6_STATUS_NOT_ALLOWED] = "Not allowed", - [DHCP6_STATUS_QUERY_TERMINATED] = "Query terminated", - [DHCP6_STATUS_DATA_MISSING] = "Data missing", - [DHCP6_STATUS_CATCHUP_COMPLETE] = "Catch up complete", - [DHCP6_STATUS_NOT_SUPPORTED] = "Not supported", - [DHCP6_STATUS_TLS_CONNECTION_REFUSED] = "TLS connection refused", - [DHCP6_STATUS_ADDRESS_IN_USE] = "Address in use", - [DHCP6_STATUS_CONFIGURATION_CONFLICT] = "Configuration conflict", - [DHCP6_STATUS_MISSING_BINDING_INFORMATION] = "Missing binding information", - [DHCP6_STATUS_OUTDATED_BINDING_INFORMATION] = "Outdated binding information", - [DHCP6_STATUS_SERVER_SHUTTING_DOWN] = "Server shutting down", - [DHCP6_STATUS_DNS_UPDATE_NOT_SUPPORTED] = "DNS update not supported", - [DHCP6_STATUS_EXCESSIVE_TIME_SKEW] = "Excessive time skew", -}; - -DEFINE_STRING_TABLE_LOOKUP(dhcp6_message_status, int); - #define DHCP6_CLIENT_DONT_DESTROY(client) \ _cleanup_(sd_dhcp6_client_unrefp) _unused_ sd_dhcp6_client *_dont_destroy_##client = sd_dhcp6_client_ref(client) -static int client_start(sd_dhcp6_client *client, DHCP6State state); +static int client_start_transaction(sd_dhcp6_client *client, DHCP6State state); int sd_dhcp6_client_set_callback( sd_dhcp6_client *client, @@ -191,8 +59,8 @@ int sd_dhcp6_client_set_callback( int sd_dhcp6_client_set_ifindex(sd_dhcp6_client *client, int ifindex) { assert_return(client, -EINVAL); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); assert_return(ifindex > 0, -EINVAL); - assert_return(client->state == DHCP6_STATE_STOPPED, -EBUSY); client->ifindex = ifindex; return 0; @@ -228,9 +96,9 @@ int sd_dhcp6_client_set_local_address( const struct in6_addr *local_address) { assert_return(client, -EINVAL); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); assert_return(local_address, -EINVAL); assert_return(in6_addr_is_link_local(local_address) > 0, -EINVAL); - assert_return(client->state == DHCP6_STATE_STOPPED, -EBUSY); client->local_address = *local_address; @@ -239,13 +107,16 @@ int sd_dhcp6_client_set_local_address( int sd_dhcp6_client_set_mac( sd_dhcp6_client *client, - const uint8_t *addr, size_t addr_len, + const uint8_t *addr, + size_t addr_len, uint16_t arp_type) { assert_return(client, -EINVAL); assert_return(addr, -EINVAL); - assert_return(addr_len <= MAX_MAC_ADDR_LEN, -EINVAL); - assert_return(client->state == DHCP6_STATE_STOPPED, -EBUSY); + assert_return(addr_len <= sizeof(client->hw_addr.bytes), -EINVAL); + + /* Unlike the other setters, it is OK to set a new MAC address while the client is running, + * as the MAC address is used only when setting DUID or IAID. */ if (arp_type == ARPHRD_ETHER) assert_return(addr_len == ETH_ALEN, -EINVAL); @@ -253,12 +124,12 @@ int sd_dhcp6_client_set_mac( assert_return(addr_len == INFINIBAND_ALEN, -EINVAL); else { client->arp_type = ARPHRD_NONE; - client->mac_addr_len = 0; + client->hw_addr.length = 0; return 0; } - memcpy(&client->mac_addr, addr, addr_len); - client->mac_addr_len = addr_len; + memcpy(client->hw_addr.bytes, addr, addr_len); + client->hw_addr.length = addr_len; client->arp_type = arp_type; return 0; @@ -267,25 +138,47 @@ int sd_dhcp6_client_set_mac( int sd_dhcp6_client_set_prefix_delegation_hint( sd_dhcp6_client *client, uint8_t prefixlen, - const struct in6_addr *pd_address) { + const struct in6_addr *pd_prefix) { + + _cleanup_free_ DHCP6Address *prefix = NULL; assert_return(client, -EINVAL); - assert_return(pd_address, -EINVAL); - assert_return(client->state == DHCP6_STATE_STOPPED, -EBUSY); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); + + if (!pd_prefix) { + /* clear previous assignments. */ + dhcp6_ia_clear_addresses(&client->ia_pd); + return 0; + } - client->hint_pd_prefix.iapdprefix.address = *pd_address; - client->hint_pd_prefix.iapdprefix.prefixlen = prefixlen; + assert_return(prefixlen > 0 && prefixlen <= 128, -EINVAL); - return 0; + prefix = new(DHCP6Address, 1); + if (!prefix) + return -ENOMEM; + + *prefix = (DHCP6Address) { + .iapdprefix.address = *pd_prefix, + .iapdprefix.prefixlen = prefixlen, + }; + + LIST_PREPEND(addresses, client->ia_pd.addresses, TAKE_PTR(prefix)); + return 1; } int sd_dhcp6_client_add_vendor_option(sd_dhcp6_client *client, sd_dhcp6_option *v) { int r; assert_return(client, -EINVAL); - assert_return(v, -EINVAL); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); + + if (!v) { + /* Clear the previous assignments. */ + ordered_set_clear(client->vendor_options); + return 0; + } - r = ordered_hashmap_ensure_put(&client->vendor_options, &dhcp6_option_hash_ops, v, v); + r = ordered_set_ensure_put(&client->vendor_options, &dhcp6_option_hash_ops, v); if (r < 0) return r; @@ -295,10 +188,12 @@ int sd_dhcp6_client_add_vendor_option(sd_dhcp6_client *client, sd_dhcp6_option * } static int client_ensure_duid(sd_dhcp6_client *client) { + assert(client); + if (client->duid_len != 0) return 0; - return dhcp_identifier_set_duid_en(&client->duid, &client->duid_len); + return dhcp_identifier_set_duid_en(client->test_mode, &client->duid, &client->duid_len); } /** @@ -308,15 +203,15 @@ static int client_ensure_duid(sd_dhcp6_client *client) { */ static int dhcp6_client_set_duid_internal( sd_dhcp6_client *client, - uint16_t duid_type, + DUIDType duid_type, const void *duid, size_t duid_len, usec_t llt_time) { int r; assert_return(client, -EINVAL); - assert_return(duid_len == 0 || duid != NULL, -EINVAL); - assert_return(client->state == DHCP6_STATE_STOPPED, -EBUSY); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); + assert_return(duid_len == 0 || duid, -EINVAL); if (duid) { r = dhcp_validate_duid_len(duid_type, duid_len, true); @@ -331,41 +226,23 @@ static int dhcp6_client_set_duid_internal( client->duid.type = htobe16(duid_type); memcpy(&client->duid.raw.data, duid, duid_len); client->duid_len = sizeof(client->duid.type) + duid_len; - } else -#if 0 /* NM_IGNORED */ - switch (duid_type) { - case DUID_TYPE_LLT: - if (client->mac_addr_len == 0) - return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EOPNOTSUPP), "Failed to set DUID-LLT, MAC address is not set."); - r = dhcp_identifier_set_duid_llt(&client->duid, llt_time, client->mac_addr, client->mac_addr_len, client->arp_type, &client->duid_len); - if (r < 0) - return log_dhcp6_client_errno(client, r, "Failed to set DUID-LLT: %m"); - break; - case DUID_TYPE_EN: - r = dhcp_identifier_set_duid_en(&client->duid, &client->duid_len); - if (r < 0) - return log_dhcp6_client_errno(client, r, "Failed to set DUID-EN: %m"); - break; - case DUID_TYPE_LL: - if (client->mac_addr_len == 0) - return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EOPNOTSUPP), "Failed to set DUID-LL, MAC address is not set."); - - r = dhcp_identifier_set_duid_ll(&client->duid, client->mac_addr, client->mac_addr_len, client->arp_type, &client->duid_len); - if (r < 0) - return log_dhcp6_client_errno(client, r, "Failed to set DUID-LL: %m"); - break; - case DUID_TYPE_UUID: - r = dhcp_identifier_set_duid_uuid(&client->duid, &client->duid_len); - if (r < 0) - return log_dhcp6_client_errno(client, r, "Failed to set DUID-UUID: %m"); - break; - default: - return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), "Invalid DUID type"); - } + } else { +#if 0 /* NM_IGNORED */ + r = dhcp_identifier_set_duid(duid_type, client->hw_addr.bytes, client->hw_addr.length, + client->arp_type, llt_time, client->test_mode, &client->duid, &client->duid_len); + if (r == -EOPNOTSUPP) + return log_dhcp6_client_errno(client, r, + "Failed to set %s. MAC address is not set or " + "interface type is not supported.", + duid_type_to_string(duid_type)); + if (r < 0) + return log_dhcp6_client_errno(client, r, "Failed to set %s: %m", + duid_type_to_string(duid_type)); #else /* NM_IGNORED */ g_return_val_if_reached (-EINVAL); #endif /* NM_IGNORED */ + } return 0; } @@ -384,14 +261,6 @@ int sd_dhcp6_client_set_duid_llt( return dhcp6_client_set_duid_internal(client, DUID_TYPE_LLT, NULL, 0, llt_time); } -static const char* const dhcp6_duid_type_table[_DUID_TYPE_MAX] = { - [DUID_TYPE_LLT] = "DUID-LLT", - [DUID_TYPE_EN] = "DUID-EN/Vendor", - [DUID_TYPE_LL] = "DUID-LL", - [DUID_TYPE_UUID] = "UUID", -}; -DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(dhcp6_duid_type, DUIDType); - int sd_dhcp6_client_duid_as_string( sd_dhcp6_client *client, char **duid) { @@ -403,7 +272,7 @@ int sd_dhcp6_client_duid_as_string( assert_return(client->duid_len > 0, -ENODATA); assert_return(duid, -EINVAL); - v = dhcp6_duid_type_to_string(be16toh(client->duid.type)); + v = duid_type_to_string(be16toh(client->duid.type)); if (v) { s = strdup(v); if (!s) @@ -429,19 +298,36 @@ int sd_dhcp6_client_duid_as_string( int sd_dhcp6_client_set_iaid(sd_dhcp6_client *client, uint32_t iaid) { assert_return(client, -EINVAL); - assert_return(client->state == DHCP6_STATE_STOPPED, -EBUSY); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); - client->ia_na.ia_na.id = htobe32(iaid); - client->ia_pd.ia_pd.id = htobe32(iaid); + client->ia_na.header.id = htobe32(iaid); + client->ia_pd.header.id = htobe32(iaid); client->iaid_set = true; return 0; } -void dhcp6_client_set_test_mode(sd_dhcp6_client *client, bool test_mode) { +static int client_ensure_iaid(sd_dhcp6_client *client) { + int r; + uint32_t iaid; + assert(client); - client->test_mode = test_mode; + if (client->iaid_set) + return 0; + + r = dhcp_identifier_set_iaid(client->ifindex, client->hw_addr.bytes, client->hw_addr.length, + /* legacy_unstable_byteorder = */ true, + /* use_mac = */ client->test_mode, + &iaid); + if (r < 0) + return r; + + client->ia_na.header.id = iaid; + client->ia_pd.header.id = iaid; + client->iaid_set = true; + + return 0; } int sd_dhcp6_client_get_iaid(sd_dhcp6_client *client, uint32_t *iaid) { @@ -451,16 +337,23 @@ int sd_dhcp6_client_get_iaid(sd_dhcp6_client *client, uint32_t *iaid) { if (!client->iaid_set) return -ENODATA; - *iaid = be32toh(client->ia_na.ia_na.id); + *iaid = be32toh(client->ia_na.header.id); return 0; } +void dhcp6_client_set_test_mode(sd_dhcp6_client *client, bool test_mode) { + assert(client); + + client->test_mode = test_mode; +} + int sd_dhcp6_client_set_fqdn( sd_dhcp6_client *client, const char *fqdn) { assert_return(client, -EINVAL); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); /* Make sure FQDN qualifies as DNS and as Linux hostname */ if (fqdn && @@ -472,7 +365,7 @@ int sd_dhcp6_client_set_fqdn( int sd_dhcp6_client_set_information_request(sd_dhcp6_client *client, int enabled) { assert_return(client, -EINVAL); - assert_return(client->state == DHCP6_STATE_STOPPED, -EBUSY); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); client->information_request = enabled; @@ -492,7 +385,7 @@ int sd_dhcp6_client_set_request_option(sd_dhcp6_client *client, uint16_t option) size_t t; assert_return(client, -EINVAL); - assert_return(client->state == DHCP6_STATE_STOPPED, -EBUSY); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); if (!dhcp6_option_can_request(option)) return -EINVAL; @@ -511,7 +404,7 @@ int sd_dhcp6_client_set_request_option(sd_dhcp6_client *client, uint16_t option) int sd_dhcp6_client_set_request_mud_url(sd_dhcp6_client *client, const char *mudurl) { assert_return(client, -EINVAL); - assert_return(client->state == DHCP6_STATE_STOPPED, -EBUSY); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); assert_return(mudurl, -EINVAL); assert_return(strlen(mudurl) <= UINT8_MAX, -EINVAL); assert_return(http_url_is_valid(mudurl), -EINVAL); @@ -520,11 +413,10 @@ int sd_dhcp6_client_set_request_mud_url(sd_dhcp6_client *client, const char *mud } int sd_dhcp6_client_set_request_user_class(sd_dhcp6_client *client, char * const *user_class) { - char * const *p; char **s; assert_return(client, -EINVAL); - assert_return(client->state == DHCP6_STATE_STOPPED, -EBUSY); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); assert_return(!strv_isempty(user_class), -EINVAL); STRV_FOREACH(p, user_class) { @@ -542,11 +434,10 @@ int sd_dhcp6_client_set_request_user_class(sd_dhcp6_client *client, char * const } int sd_dhcp6_client_set_request_vendor_class(sd_dhcp6_client *client, char * const *vendor_class) { - char * const *p; char **s; assert_return(client, -EINVAL); - assert_return(client->state == DHCP6_STATE_STOPPED, -EBUSY); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); assert_return(!strv_isempty(vendor_class), -EINVAL); STRV_FOREACH(p, vendor_class) { @@ -574,6 +465,7 @@ int sd_dhcp6_client_get_prefix_delegation(sd_dhcp6_client *client, int *delegati int sd_dhcp6_client_set_prefix_delegation(sd_dhcp6_client *client, int delegation) { assert_return(client, -EINVAL); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); SET_FLAG(client->request_ia, DHCP6_REQUEST_IA_PD, delegation); @@ -591,16 +483,20 @@ int sd_dhcp6_client_get_address_request(sd_dhcp6_client *client, int *request) { int sd_dhcp6_client_set_address_request(sd_dhcp6_client *client, int request) { assert_return(client, -EINVAL); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); SET_FLAG(client->request_ia, DHCP6_REQUEST_IA_NA, request); return 0; } -int sd_dhcp6_client_set_transaction_id(sd_dhcp6_client *client, uint32_t transaction_id) { - assert_return(client, -EINVAL); +int dhcp6_client_set_transaction_id(sd_dhcp6_client *client, uint32_t transaction_id) { + assert(client); + assert(client->test_mode); - client->transaction_id = transaction_id; + /* This is for tests or fuzzers. */ + + client->transaction_id = transaction_id & htobe32(0x00ffffff); return 0; } @@ -631,6 +527,18 @@ int sd_dhcp6_client_add_option(sd_dhcp6_client *client, sd_dhcp6_option *v) { return 0; } +static void client_set_state(sd_dhcp6_client *client, DHCP6State state) { + assert(client); + + if (client->state == state) + return; + + log_dhcp6_client(client, "State changed: %s -> %s", + dhcp6_state_to_string(client->state), dhcp6_state_to_string(state)); + + client->state = state; +} + static void client_notify(sd_dhcp6_client *client, int event) { assert(client); @@ -638,52 +546,122 @@ static void client_notify(sd_dhcp6_client *client, int event) { client->callback(client, event, client->userdata); } -static int client_reset(sd_dhcp6_client *client) { - assert(client); +static void client_stop(sd_dhcp6_client *client, int error) { + DHCP6_CLIENT_DONT_DESTROY(client); - client->lease = sd_dhcp6_lease_unref(client->lease); + assert(client); - client->receive_message = - sd_event_source_unref(client->receive_message); + client_notify(client, error); - client->transaction_id = 0; - client->transaction_start = 0; + client->lease = sd_dhcp6_lease_unref(client->lease); - client->retransmit_time = 0; - client->retransmit_count = 0; + /* Reset IRT here. Otherwise, we cannot restart the client in the information requesting mode, + * even though the lease is freed below. */ + client->information_request_time_usec = 0; + client->information_refresh_time_usec = 0; + (void) event_source_disable(client->receive_message); (void) event_source_disable(client->timeout_resend); - (void) event_source_disable(client->timeout_resend_expire); + (void) event_source_disable(client->timeout_expire); (void) event_source_disable(client->timeout_t1); (void) event_source_disable(client->timeout_t2); - client->state = DHCP6_STATE_STOPPED; - - return 0; + client_set_state(client, DHCP6_STATE_STOPPED); } -static void client_stop(sd_dhcp6_client *client, int error) { - DHCP6_CLIENT_DONT_DESTROY(client); +static int client_append_common_options_in_managed_mode( + sd_dhcp6_client *client, + uint8_t **opt, + size_t *optlen, + const DHCP6IA *ia_na, + const DHCP6IA *ia_pd) { + + int r; assert(client); + assert(IN_SET(client->state, + DHCP6_STATE_SOLICITATION, + DHCP6_STATE_REQUEST, + DHCP6_STATE_RENEW, + DHCP6_STATE_REBIND)); + assert(opt); + assert(optlen); + + if (FLAGS_SET(client->request_ia, DHCP6_REQUEST_IA_NA) && ia_na) { + r = dhcp6_option_append_ia(opt, optlen, ia_na); + if (r < 0) + return r; + } - client_notify(client, error); + if (FLAGS_SET(client->request_ia, DHCP6_REQUEST_IA_PD) && ia_pd) { + r = dhcp6_option_append_ia(opt, optlen, ia_pd); + if (r < 0) + return r; + } - client_reset(client); + if (client->fqdn) { + r = dhcp6_option_append_fqdn(opt, optlen, client->fqdn); + if (r < 0) + return r; + } + + if (client->user_class) { + r = dhcp6_option_append_user_class(opt, optlen, client->user_class); + if (r < 0) + return r; + } + + if (client->vendor_class) { + r = dhcp6_option_append_vendor_class(opt, optlen, client->vendor_class); + if (r < 0) + return r; + } + + if (!ordered_set_isempty(client->vendor_options)) { + r = dhcp6_option_append_vendor_option(opt, optlen, client->vendor_options); + if (r < 0) + return r; + } + + return 0; } -static int client_send_message(sd_dhcp6_client *client, usec_t time_now) { +static DHCP6MessageType client_message_type_from_state(sd_dhcp6_client *client) { + assert(client); + + switch (client->state) { + case DHCP6_STATE_INFORMATION_REQUEST: + return DHCP6_MESSAGE_INFORMATION_REQUEST; + case DHCP6_STATE_SOLICITATION: + return DHCP6_MESSAGE_SOLICIT; + case DHCP6_STATE_REQUEST: + return DHCP6_MESSAGE_REQUEST; + case DHCP6_STATE_RENEW: + return DHCP6_MESSAGE_RENEW; + case DHCP6_STATE_REBIND: + return DHCP6_MESSAGE_REBIND; + default: + assert_not_reached(); + } +} + +int dhcp6_client_send_message(sd_dhcp6_client *client) { _cleanup_free_ DHCP6Message *message = NULL; struct in6_addr all_servers = IN6ADDR_ALL_DHCP6_RELAY_AGENTS_AND_SERVERS_INIT; struct sd_dhcp6_option *j; size_t len, optlen = 512; uint8_t *opt; - int r; - usec_t elapsed_usec; + usec_t elapsed_usec, time_now; be16_t elapsed_time; + int r; assert(client); + assert(client->event); + + r = sd_event_now(client->event, CLOCK_BOOTTIME, &time_now); + if (r < 0) + return r; len = sizeof(DHCP6Message) + optlen; @@ -694,194 +672,56 @@ static int client_send_message(sd_dhcp6_client *client, usec_t time_now) { opt = (uint8_t *)(message + 1); message->transaction_id = client->transaction_id; + message->type = client_message_type_from_state(client); - switch(client->state) { + switch (client->state) { case DHCP6_STATE_INFORMATION_REQUEST: - message->type = DHCP6_MESSAGE_INFORMATION_REQUEST; - - if (client->mudurl) { - r = dhcp6_option_append(&opt, &optlen, - SD_DHCP6_OPTION_MUD_URL_V6, strlen(client->mudurl), - client->mudurl); - if (r < 0) - return r; - } - break; case DHCP6_STATE_SOLICITATION: - message->type = DHCP6_MESSAGE_SOLICIT; - - r = dhcp6_option_append(&opt, &optlen, - SD_DHCP6_OPTION_RAPID_COMMIT, 0, NULL); + r = dhcp6_option_append(&opt, &optlen, SD_DHCP6_OPTION_RAPID_COMMIT, 0, NULL); if (r < 0) return r; - if (FLAGS_SET(client->request_ia, DHCP6_REQUEST_IA_NA)) { - r = dhcp6_option_append_ia(&opt, &optlen, - &client->ia_na); - if (r < 0) - return r; - } - - if (client->fqdn) { - r = dhcp6_option_append_fqdn(&opt, &optlen, client->fqdn); - if (r < 0) - return r; - } - - if (client->mudurl) { - r = dhcp6_option_append(&opt, &optlen, - SD_DHCP6_OPTION_MUD_URL_V6, strlen(client->mudurl), - client->mudurl); - if (r < 0) - return r; - } - - if (client->user_class) { - r = dhcp6_option_append_user_class(&opt, &optlen, client->user_class); - if (r < 0) - return r; - } - - if (client->vendor_class) { - r = dhcp6_option_append_vendor_class(&opt, &optlen, client->vendor_class); - if (r < 0) - return r; - } - - if (!ordered_hashmap_isempty(client->vendor_options)) { - r = dhcp6_option_append_vendor_option(&opt, &optlen, - client->vendor_options); - if (r < 0) - return r; - } - - if (FLAGS_SET(client->request_ia, DHCP6_REQUEST_IA_PD)) { - r = dhcp6_option_append_pd(&opt, &optlen, &client->ia_pd, &client->hint_pd_prefix); - if (r < 0) - return r; - } - + r = client_append_common_options_in_managed_mode(client, &opt, &optlen, + &client->ia_na, &client->ia_pd); + if (r < 0) + return r; break; case DHCP6_STATE_REQUEST: case DHCP6_STATE_RENEW: - if (client->state == DHCP6_STATE_REQUEST) - message->type = DHCP6_MESSAGE_REQUEST; - else - message->type = DHCP6_MESSAGE_RENEW; - r = dhcp6_option_append(&opt, &optlen, SD_DHCP6_OPTION_SERVERID, client->lease->serverid_len, client->lease->serverid); if (r < 0) return r; - if (FLAGS_SET(client->request_ia, DHCP6_REQUEST_IA_NA) && client->lease->ia.addresses) { - r = dhcp6_option_append_ia(&opt, &optlen, - &client->lease->ia); - if (r < 0) - return r; - } - - if (client->fqdn) { - r = dhcp6_option_append_fqdn(&opt, &optlen, client->fqdn); - if (r < 0) - return r; - } - - if (client->mudurl) { - r = dhcp6_option_append(&opt, &optlen, - SD_DHCP6_OPTION_MUD_URL_V6, strlen(client->mudurl), - client->mudurl); - if (r < 0) - return r; - } - - if (client->user_class) { - r = dhcp6_option_append_user_class(&opt, &optlen, client->user_class); - if (r < 0) - return r; - } - - if (client->vendor_class) { - r = dhcp6_option_append_vendor_class(&opt, &optlen, client->vendor_class); - if (r < 0) - return r; - } - - if (!ordered_hashmap_isempty(client->vendor_options)) { - r = dhcp6_option_append_vendor_option(&opt, &optlen, client->vendor_options); - if (r < 0) - return r; - } - - if (FLAGS_SET(client->request_ia, DHCP6_REQUEST_IA_PD) && client->lease->pd.addresses) { - r = dhcp6_option_append_pd(&opt, &optlen, &client->lease->pd, NULL); - if (r < 0) - return r; - } - - break; - + _fallthrough_; case DHCP6_STATE_REBIND: - message->type = DHCP6_MESSAGE_REBIND; - - if (FLAGS_SET(client->request_ia, DHCP6_REQUEST_IA_NA)) { - r = dhcp6_option_append_ia(&opt, &optlen, &client->lease->ia); - if (r < 0) - return r; - } - - if (client->fqdn) { - r = dhcp6_option_append_fqdn(&opt, &optlen, client->fqdn); - if (r < 0) - return r; - } - - if (client->mudurl) { - r = dhcp6_option_append(&opt, &optlen, - SD_DHCP6_OPTION_MUD_URL_V6, strlen(client->mudurl), - client->mudurl); - if (r < 0) - return r; - } - if (client->user_class) { - r = dhcp6_option_append_user_class(&opt, &optlen, client->user_class); - if (r < 0) - return r; - } - - if (client->vendor_class) { - r = dhcp6_option_append_vendor_class(&opt, &optlen, client->vendor_class); - if (r < 0) - return r; - } - - if (!ordered_hashmap_isempty(client->vendor_options)) { - r = dhcp6_option_append_vendor_option(&opt, &optlen, client->vendor_options); - if (r < 0) - return r; - } - - if (FLAGS_SET(client->request_ia, DHCP6_REQUEST_IA_PD) && client->lease->pd.addresses) { - r = dhcp6_option_append_pd(&opt, &optlen, &client->lease->pd, NULL); - if (r < 0) - return r; - } + assert(client->lease); + r = client_append_common_options_in_managed_mode(client, &opt, &optlen, + client->lease->ia_na, client->lease->ia_pd); + if (r < 0) + return r; break; case DHCP6_STATE_STOPPED: case DHCP6_STATE_BOUND: - return -EINVAL; default: assert_not_reached(); } + if (client->mudurl) { + r = dhcp6_option_append(&opt, &optlen, SD_DHCP6_OPTION_MUD_URL_V6, + strlen(client->mudurl), client->mudurl); + if (r < 0) + return r; + } + r = dhcp6_option_append(&opt, &optlen, SD_DHCP6_OPTION_ORO, client->req_opts_len * sizeof(be16_t), client->req_opts); @@ -894,6 +734,12 @@ static int client_send_message(sd_dhcp6_client *client, usec_t time_now) { if (r < 0) return r; + ORDERED_HASHMAP_FOREACH(j, client->extra_options) { + r = dhcp6_option_append(&opt, &optlen, j->option, j->length, j->data); + if (r < 0) + return r; + } + /* RFC 8415 Section 21.9. * A client MUST include an Elapsed Time option in messages to indicate how long the client has * been trying to complete a DHCP message exchange. */ @@ -903,12 +749,6 @@ static int client_send_message(sd_dhcp6_client *client, usec_t time_now) { if (r < 0) return r; - ORDERED_HASHMAP_FOREACH(j, client->extra_options) { - r = dhcp6_option_append(&opt, &optlen, j->option, j->length, j->data); - if (r < 0) - return r; - } - r = dhcp6_network_send_udp_socket(client->fd, &all_servers, message, len - optlen); if (r < 0) @@ -920,100 +760,43 @@ static int client_send_message(sd_dhcp6_client *client, usec_t time_now) { return 0; } -static int client_timeout_t2(sd_event_source *s, uint64_t usec, void *userdata) { - sd_dhcp6_client *client = userdata; - - assert(s); - assert(client); - assert(client->lease); - - (void) event_source_disable(client->timeout_t2); - - log_dhcp6_client(client, "Timeout T2"); - - client_start(client, DHCP6_STATE_REBIND); - - return 0; -} - -static int client_timeout_t1(sd_event_source *s, uint64_t usec, void *userdata) { - sd_dhcp6_client *client = userdata; - - assert(s); - assert(client); - assert(client->lease); - - (void) event_source_disable(client->timeout_t1); - - log_dhcp6_client(client, "Timeout T1"); - - client_start(client, DHCP6_STATE_RENEW); - - return 0; -} - -static int client_timeout_resend_expire(sd_event_source *s, uint64_t usec, void *userdata) { - sd_dhcp6_client *client = userdata; - DHCP6_CLIENT_DONT_DESTROY(client); - DHCP6State state; - - assert(s); - assert(client); - assert(client->event); - - state = client->state; - - client_stop(client, SD_DHCP6_CLIENT_EVENT_RESEND_EXPIRE); - - /* RFC 3315, section 18.1.4., says that "...the client may choose to - use a Solicit message to locate a new DHCP server..." */ - if (state == DHCP6_STATE_REBIND) - client_start(client, DHCP6_STATE_SOLICITATION); - - return 0; -} - static usec_t client_timeout_compute_random(usec_t val) { - return val - (random_u32() % USEC_PER_SEC) * val / 10 / USEC_PER_SEC; + return usec_sub_unsigned(val, random_u64_range(val / 10)); } static int client_timeout_resend(sd_event_source *s, uint64_t usec, void *userdata) { - int r = 0; - sd_dhcp6_client *client = userdata; - usec_t time_now, init_retransmit_time = 0, max_retransmit_time = 0; - usec_t max_retransmit_duration = 0; - uint8_t max_retransmit_count = 0; + sd_dhcp6_client *client = ASSERT_PTR(userdata); + usec_t init_retransmit_time, max_retransmit_time; + int r; - assert(s); - assert(client); assert(client->event); - (void) event_source_disable(client->timeout_resend); - switch (client->state) { case DHCP6_STATE_INFORMATION_REQUEST: init_retransmit_time = DHCP6_INF_TIMEOUT; max_retransmit_time = DHCP6_INF_MAX_RT; - break; case DHCP6_STATE_SOLICITATION: if (client->retransmit_count > 0 && client->lease) { - client_start(client, DHCP6_STATE_REQUEST); + (void) client_start_transaction(client, DHCP6_STATE_REQUEST); return 0; } init_retransmit_time = DHCP6_SOL_TIMEOUT; max_retransmit_time = DHCP6_SOL_MAX_RT; - break; case DHCP6_STATE_REQUEST: + + if (client->retransmit_count >= DHCP6_REQ_MAX_RC) { + client_stop(client, SD_DHCP6_CLIENT_EVENT_RETRANS_MAX); + return 0; + } + init_retransmit_time = DHCP6_REQ_TIMEOUT; max_retransmit_time = DHCP6_REQ_MAX_RT; - max_retransmit_count = DHCP6_REQ_MAX_RC; - break; case DHCP6_STATE_RENEW: @@ -1023,422 +806,365 @@ static int client_timeout_resend(sd_event_source *s, uint64_t usec, void *userda /* RFC 3315, section 18.1.3. says max retransmit duration will be the remaining time until T2. Instead of setting MRD, wait for T2 to trigger with the same end result */ - break; case DHCP6_STATE_REBIND: init_retransmit_time = DHCP6_REB_TIMEOUT; max_retransmit_time = DHCP6_REB_MAX_RT; - if (event_source_is_enabled(client->timeout_resend_expire) <= 0) { - uint32_t expire = 0; - - r = dhcp6_lease_ia_rebind_expire(&client->lease->ia, &expire); - if (r < 0) { - client_stop(client, r); - return 0; - } - max_retransmit_duration = expire * USEC_PER_SEC; - } - + /* Also, instead of setting MRD, the expire timer is already set in client_enter_bound_state(). */ break; case DHCP6_STATE_STOPPED: case DHCP6_STATE_BOUND: - return 0; default: assert_not_reached(); } - if (max_retransmit_count > 0 && - client->retransmit_count >= max_retransmit_count) { - client_stop(client, SD_DHCP6_CLIENT_EVENT_RETRANS_MAX); - return 0; - } - - r = sd_event_now(client->event, clock_boottime_or_monotonic(), &time_now); - if (r < 0) - goto error; - - r = client_send_message(client, time_now); + r = dhcp6_client_send_message(client); if (r >= 0) client->retransmit_count++; if (client->retransmit_time == 0) { - client->retransmit_time = - client_timeout_compute_random(init_retransmit_time); + client->retransmit_time = client_timeout_compute_random(init_retransmit_time); if (client->state == DHCP6_STATE_SOLICITATION) client->retransmit_time += init_retransmit_time / 10; - } else { - assert(max_retransmit_time > 0); - if (client->retransmit_time > max_retransmit_time / 2) - client->retransmit_time = client_timeout_compute_random(max_retransmit_time); - else - client->retransmit_time += client_timeout_compute_random(client->retransmit_time); - } + } else if (client->retransmit_time > max_retransmit_time / 2) + client->retransmit_time = client_timeout_compute_random(max_retransmit_time); + else + client->retransmit_time += client_timeout_compute_random(client->retransmit_time); log_dhcp6_client(client, "Next retransmission in %s", FORMAT_TIMESPAN(client->retransmit_time, USEC_PER_SEC)); - r = event_reset_time(client->event, &client->timeout_resend, - clock_boottime_or_monotonic(), - time_now + client->retransmit_time, 10 * USEC_PER_MSEC, - client_timeout_resend, client, - client->event_priority, "dhcp6-resend-timer", true); - if (r < 0) - goto error; - - if (max_retransmit_duration > 0 && event_source_is_enabled(client->timeout_resend_expire) <= 0) { - - log_dhcp6_client(client, "Max retransmission duration %"PRIu64" secs", - max_retransmit_duration / USEC_PER_SEC); - - r = event_reset_time(client->event, &client->timeout_resend_expire, - clock_boottime_or_monotonic(), - time_now + max_retransmit_duration, USEC_PER_SEC, - client_timeout_resend_expire, client, - client->event_priority, "dhcp6-resend-expire-timer", true); - if (r < 0) - goto error; - } - -error: + r = event_reset_time_relative(client->event, &client->timeout_resend, + CLOCK_BOOTTIME, + client->retransmit_time, 10 * USEC_PER_MSEC, + client_timeout_resend, client, + client->event_priority, "dhcp6-resend-timer", true); if (r < 0) client_stop(client, r); return 0; } -static int client_ensure_iaid(sd_dhcp6_client *client) { +static int client_start_transaction(sd_dhcp6_client *client, DHCP6State state) { int r; - uint32_t iaid; assert(client); + assert(client->event); - if (client->iaid_set) - return 0; - - r = dhcp_identifier_set_iaid(client->ifindex, client->mac_addr, client->mac_addr_len, - /* legacy_unstable_byteorder = */ true, - /* use_mac = */ client->test_mode, - &iaid); - if (r < 0) - return r; - - client->ia_na.ia_na.id = iaid; - client->ia_pd.ia_pd.id = iaid; - client->iaid_set = true; - - return 0; -} - -int client_parse_message( - sd_dhcp6_client *client, - DHCP6Message *message, - size_t len, - sd_dhcp6_lease *lease) { - - uint32_t lt_t1 = UINT32_MAX, lt_t2 = UINT32_MAX; - usec_t irt = IRT_DEFAULT; - int r; - - assert(client); - assert(message); - assert(len >= sizeof(DHCP6Message)); - assert(lease); + switch (state) { + case DHCP6_STATE_INFORMATION_REQUEST: + case DHCP6_STATE_SOLICITATION: + assert(client->state == DHCP6_STATE_STOPPED); + break; + case DHCP6_STATE_REQUEST: + assert(client->state == DHCP6_STATE_SOLICITATION); + break; + case DHCP6_STATE_RENEW: + assert(client->state == DHCP6_STATE_BOUND); + break; + case DHCP6_STATE_REBIND: + assert(IN_SET(client->state, DHCP6_STATE_BOUND, DHCP6_STATE_RENEW)); + break; + case DHCP6_STATE_STOPPED: + case DHCP6_STATE_BOUND: + default: + assert_not_reached(); + } - len -= sizeof(DHCP6Message); - for (size_t offset = 0; offset < len;) { - uint16_t optcode; - size_t optlen; - const uint8_t *optval; + client_set_state(client, state); - r = dhcp6_option_parse(message->options, len, &offset, &optcode, &optlen, &optval); - if (r < 0) - return r; + client->retransmit_time = 0; + client->retransmit_count = 0; + client->transaction_id = random_u32() & htobe32(0x00ffffff); - switch (optcode) { - case SD_DHCP6_OPTION_CLIENTID: - if (dhcp6_lease_get_clientid(lease, NULL, NULL) >= 0) - return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), "%s contains multiple client IDs", - dhcp6_message_type_to_string(message->type)); + r = sd_event_now(client->event, CLOCK_BOOTTIME, &client->transaction_start); + if (r < 0) + goto error; - r = dhcp6_lease_set_clientid(lease, optval, optlen); - if (r < 0) - return r; + r = event_reset_time(client->event, &client->timeout_resend, + CLOCK_BOOTTIME, + 0, 0, + client_timeout_resend, client, + client->event_priority, "dhcp6-resend-timeout", true); + if (r < 0) + goto error; - break; + r = sd_event_source_set_enabled(client->receive_message, SD_EVENT_ON); + if (r < 0) + goto error; - case SD_DHCP6_OPTION_SERVERID: - if (dhcp6_lease_get_serverid(lease, NULL, NULL) >= 0) - return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), "%s contains multiple server IDs", - dhcp6_message_type_to_string(message->type)); + return 0; - r = dhcp6_lease_set_serverid(lease, optval, optlen); - if (r < 0) - return r; +error: + client_stop(client, r); + return r; +} - break; +static int client_timeout_expire(sd_event_source *s, uint64_t usec, void *userdata) { + sd_dhcp6_client *client = ASSERT_PTR(userdata); + DHCP6_CLIENT_DONT_DESTROY(client); + DHCP6State state; - case SD_DHCP6_OPTION_PREFERENCE: - if (optlen != 1) - return -EINVAL; + (void) event_source_disable(client->timeout_expire); + (void) event_source_disable(client->timeout_t2); + (void) event_source_disable(client->timeout_t1); - r = dhcp6_lease_set_preference(lease, optval[0]); - if (r < 0) - return r; + state = client->state; - break; + client_stop(client, SD_DHCP6_CLIENT_EVENT_RESEND_EXPIRE); - case SD_DHCP6_OPTION_STATUS_CODE: { - _cleanup_free_ char *msg = NULL; + /* RFC 3315, section 18.1.4., says that "...the client may choose to + use a Solicit message to locate a new DHCP server..." */ + if (state == DHCP6_STATE_REBIND) + (void) client_start_transaction(client, DHCP6_STATE_SOLICITATION); - r = dhcp6_option_parse_status(optval, optlen, &msg); - if (r < 0) - return r; - - if (r > 0) - return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), - "Received %s message with non-zero status: %s%s%s", - dhcp6_message_type_to_string(message->type), - strempty(msg), isempty(msg) ? "" : ": ", - dhcp6_message_status_to_string(r)); - break; - } - case SD_DHCP6_OPTION_IA_NA: { - _cleanup_(dhcp6_lease_free_ia) DHCP6IA ia = {}; + return 0; +} - if (client->state == DHCP6_STATE_INFORMATION_REQUEST) { - log_dhcp6_client(client, "Ignoring IA NA option in information requesting mode."); - break; - } +static int client_timeout_t2(sd_event_source *s, uint64_t usec, void *userdata) { + sd_dhcp6_client *client = ASSERT_PTR(userdata); - r = dhcp6_option_parse_ia(client, client->ia_pd.ia_na.id, optcode, optlen, optval, &ia); - if (r == -ENOMEM) - return r; - if (r < 0) - continue; + (void) event_source_disable(client->timeout_t2); + (void) event_source_disable(client->timeout_t1); - if (lease->ia.addresses) { - log_dhcp6_client(client, "Received duplicate matching IA_NA option, ignoring."); - continue; - } + log_dhcp6_client(client, "Timeout T2"); - lease->ia = ia; - ia = (DHCP6IA) {}; + (void) client_start_transaction(client, DHCP6_STATE_REBIND); - lt_t1 = MIN(lt_t1, be32toh(lease->ia.ia_na.lifetime_t1)); - lt_t2 = MIN(lt_t2, be32toh(lease->ia.ia_na.lifetime_t2)); + return 0; +} - break; - } - case SD_DHCP6_OPTION_IA_PD: { - _cleanup_(dhcp6_lease_free_ia) DHCP6IA ia = {}; +static int client_timeout_t1(sd_event_source *s, uint64_t usec, void *userdata) { + sd_dhcp6_client *client = ASSERT_PTR(userdata); - if (client->state == DHCP6_STATE_INFORMATION_REQUEST) { - log_dhcp6_client(client, "Ignoring IA PD option in information requesting mode."); - break; - } + (void) event_source_disable(client->timeout_t1); - r = dhcp6_option_parse_ia(client, client->ia_pd.ia_pd.id, optcode, optlen, optval, &ia); - if (r == -ENOMEM) - return r; - if (r < 0) - continue; + log_dhcp6_client(client, "Timeout T1"); - if (lease->pd.addresses) { - log_dhcp6_client(client, "Received duplicate matching IA_PD option, ignoring."); - continue; - } + (void) client_start_transaction(client, DHCP6_STATE_RENEW); - lease->pd = ia; - ia = (DHCP6IA) {}; + return 0; +} - lt_t1 = MIN(lt_t1, be32toh(lease->pd.ia_pd.lifetime_t1)); - lt_t2 = MIN(lt_t2, be32toh(lease->pd.ia_pd.lifetime_t2)); +static int client_enter_bound_state(sd_dhcp6_client *client) { + usec_t lifetime_t1, lifetime_t2, lifetime_valid; + int r; - break; - } - case SD_DHCP6_OPTION_RAPID_COMMIT: - r = dhcp6_lease_set_rapid_commit(lease); - if (r < 0) - return r; + assert(client); + assert(client->lease); + assert(IN_SET(client->state, + DHCP6_STATE_SOLICITATION, + DHCP6_STATE_REQUEST, + DHCP6_STATE_RENEW, + DHCP6_STATE_REBIND)); - break; + (void) event_source_disable(client->receive_message); + (void) event_source_disable(client->timeout_resend); - case SD_DHCP6_OPTION_DNS_SERVERS: - r = dhcp6_lease_add_dns(lease, optval, optlen); - if (r < 0) - log_dhcp6_client_errno(client, r, "Failed to parse DNS server option, ignoring: %m"); + r = dhcp6_lease_get_lifetime(client->lease, &lifetime_t1, &lifetime_t2, &lifetime_valid); + if (r < 0) + goto error; - break; + lifetime_t2 = client_timeout_compute_random(lifetime_t2); + lifetime_t1 = client_timeout_compute_random(MIN(lifetime_t1, lifetime_t2)); - case SD_DHCP6_OPTION_DOMAIN_LIST: - r = dhcp6_lease_add_domains(lease, optval, optlen); - if (r < 0) - log_dhcp6_client_errno(client, r, "Failed to parse domain list option, ignoring: %m"); + if (lifetime_t1 == USEC_INFINITY) { + log_dhcp6_client(client, "Infinite T1"); + event_source_disable(client->timeout_t1); + } else { + log_dhcp6_client(client, "T1 expires in %s", FORMAT_TIMESPAN(lifetime_t1, USEC_PER_SEC)); + r = event_reset_time_relative(client->event, &client->timeout_t1, + CLOCK_BOOTTIME, + lifetime_t1, 10 * USEC_PER_SEC, + client_timeout_t1, client, + client->event_priority, "dhcp6-t1-timeout", true); + if (r < 0) + goto error; + } - break; + if (lifetime_t2 == USEC_INFINITY) { + log_dhcp6_client(client, "Infinite T2"); + event_source_disable(client->timeout_t2); + } else { + log_dhcp6_client(client, "T2 expires in %s", FORMAT_TIMESPAN(lifetime_t2, USEC_PER_SEC)); + r = event_reset_time_relative(client->event, &client->timeout_t2, + CLOCK_BOOTTIME, + lifetime_t2, 10 * USEC_PER_SEC, + client_timeout_t2, client, + client->event_priority, "dhcp6-t2-timeout", true); + if (r < 0) + goto error; + } - case SD_DHCP6_OPTION_NTP_SERVER: - r = dhcp6_lease_add_ntp(lease, optval, optlen); - if (r < 0) - log_dhcp6_client_errno(client, r, "Failed to parse NTP server option, ignoring: %m"); + if (lifetime_valid == USEC_INFINITY) { + log_dhcp6_client(client, "Infinite valid lifetime"); + event_source_disable(client->timeout_expire); + } else { + log_dhcp6_client(client, "Valid lifetime expires in %s", FORMAT_TIMESPAN(lifetime_valid, USEC_PER_SEC)); - break; + r = event_reset_time_relative(client->event, &client->timeout_expire, + CLOCK_BOOTTIME, + lifetime_valid, USEC_PER_SEC, + client_timeout_expire, client, + client->event_priority, "dhcp6-lease-expire", true); + if (r < 0) + goto error; + } - case SD_DHCP6_OPTION_SNTP_SERVERS: - r = dhcp6_lease_add_sntp(lease, optval, optlen); - if (r < 0) - log_dhcp6_client_errno(client, r, "Failed to parse SNTP server option, ignoring: %m"); + client_set_state(client, DHCP6_STATE_BOUND); + client_notify(client, SD_DHCP6_CLIENT_EVENT_IP_ACQUIRE); + return 0; - break; +error: + client_stop(client, r); + return r; +} - case SD_DHCP6_OPTION_CLIENT_FQDN: - r = dhcp6_lease_set_fqdn(lease, optval, optlen); - if (r < 0) - log_dhcp6_client_errno(client, r, "Failed to parse FQDN option, ignoring: %m"); +static int log_invalid_message_type(sd_dhcp6_client *client, const DHCP6Message *message) { + const char *type_str; - break; + assert(client); + assert(message); - case SD_DHCP6_OPTION_INFORMATION_REFRESH_TIME: - if (optlen != 4) - return -EINVAL; + type_str = dhcp6_message_type_to_string(message->type); + if (type_str) + return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), + "Received unexpected %s message, ignoring.", type_str); + else + return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), + "Received unsupported message type %u, ignoring.", message->type); +} - irt = unaligned_read_be32((be32_t *) optval) * USEC_PER_SEC; - break; - } - } +static int client_process_information( + sd_dhcp6_client *client, + DHCP6Message *message, + size_t len, + const triple_timestamp *timestamp, + const struct in6_addr *server_address) { - uint8_t *clientid; - size_t clientid_len; - if (dhcp6_lease_get_clientid(lease, &clientid, &clientid_len) < 0) - return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), "%s message does not contain client ID. Ignoring.", - dhcp6_message_type_to_string(message->type)); + _cleanup_(sd_dhcp6_lease_unrefp) sd_dhcp6_lease *lease = NULL; + int r; - if (clientid_len != client->duid_len || - memcmp(clientid, &client->duid, clientid_len) != 0) - return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), "The client ID in %s message does not match. Ignoring.", - dhcp6_message_type_to_string(message->type)); + assert(client); + assert(message); - if (client->state != DHCP6_STATE_INFORMATION_REQUEST) { - r = dhcp6_lease_get_serverid(lease, NULL, NULL); - if (r < 0) - return log_dhcp6_client_errno(client, r, "%s has no server id", - dhcp6_message_type_to_string(message->type)); + if (message->type != DHCP6_MESSAGE_REPLY) + return log_invalid_message_type(client, message); - if (!lease->ia.addresses && !lease->pd.addresses) - return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), "No IA_PD prefix or IA_NA address received. Ignoring."); + r = dhcp6_lease_new_from_message(client, message, len, timestamp, server_address, &lease); + if (r < 0) + return log_dhcp6_client_errno(client, r, "Failed to process received reply message, ignoring: %m"); - if (lease->ia.addresses) { - lease->ia.ia_na.lifetime_t1 = htobe32(lt_t1); - lease->ia.ia_na.lifetime_t2 = htobe32(lt_t2); - } + log_dhcp6_client(client, "Processed %s message", dhcp6_message_type_to_string(message->type)); - if (lease->pd.addresses) { - lease->pd.ia_pd.lifetime_t1 = htobe32(lt_t1); - lease->pd.ia_pd.lifetime_t2 = htobe32(lt_t2); - } - } + sd_dhcp6_lease_unref(client->lease); + client->lease = TAKE_PTR(lease); - client->information_refresh_time_usec = MAX(irt, IRT_MINIMUM); + /* Do not call client_stop() here, as it frees the acquired lease. */ + (void) event_source_disable(client->receive_message); + (void) event_source_disable(client->timeout_resend); + client_set_state(client, DHCP6_STATE_STOPPED); + client_notify(client, SD_DHCP6_CLIENT_EVENT_INFORMATION_REQUEST); return 0; } -static int client_receive_reply( +static int client_process_reply( sd_dhcp6_client *client, - DHCP6Message *reply, + DHCP6Message *message, size_t len, - const triple_timestamp *t, + const triple_timestamp *timestamp, const struct in6_addr *server_address) { _cleanup_(sd_dhcp6_lease_unrefp) sd_dhcp6_lease *lease = NULL; - bool rapid_commit; int r; assert(client); - assert(reply); - assert(t); + assert(message); - if (reply->type != DHCP6_MESSAGE_REPLY) - return 0; + if (message->type != DHCP6_MESSAGE_REPLY) + return log_invalid_message_type(client, message); - r = dhcp6_lease_new(&lease); + r = dhcp6_lease_new_from_message(client, message, len, timestamp, server_address, &lease); if (r < 0) - return -ENOMEM; + return log_dhcp6_client_errno(client, r, "Failed to process received reply message, ignoring: %m"); - lease->timestamp = *t; - if (server_address) - lease->server_address = *server_address; - - r = client_parse_message(client, reply, len, lease); - if (r < 0) - return r; - - if (client->state == DHCP6_STATE_SOLICITATION) { - r = dhcp6_lease_get_rapid_commit(lease, &rapid_commit); - if (r < 0) - return r; - - if (!rapid_commit) - return 0; - } + log_dhcp6_client(client, "Processed %s message", dhcp6_message_type_to_string(message->type)); sd_dhcp6_lease_unref(client->lease); client->lease = TAKE_PTR(lease); - return DHCP6_STATE_BOUND; + return client_enter_bound_state(client); } -static int client_receive_advertise( +static int client_process_advertise_or_rapid_commit_reply( sd_dhcp6_client *client, - DHCP6Message *advertise, + DHCP6Message *message, size_t len, - const triple_timestamp *t, + const triple_timestamp *timestamp, const struct in6_addr *server_address) { _cleanup_(sd_dhcp6_lease_unrefp) sd_dhcp6_lease *lease = NULL; - uint8_t pref_advertise = 0, pref_lease = 0; + uint8_t pref_advertise, pref_lease = 0; int r; assert(client); - assert(advertise); - assert(t); + assert(message); - if (advertise->type != DHCP6_MESSAGE_ADVERTISE) - return 0; + if (!IN_SET(message->type, DHCP6_MESSAGE_ADVERTISE, DHCP6_MESSAGE_REPLY)) + return log_invalid_message_type(client, message); - r = dhcp6_lease_new(&lease); + r = dhcp6_lease_new_from_message(client, message, len, timestamp, server_address, &lease); if (r < 0) - return r; + return log_dhcp6_client_errno(client, r, "Failed to process received %s message, ignoring: %m", + dhcp6_message_type_to_string(message->type)); - lease->timestamp = *t; - if (server_address) - lease->server_address = *server_address; + if (message->type == DHCP6_MESSAGE_REPLY) { + bool rapid_commit; - r = client_parse_message(client, advertise, len, lease); - if (r < 0) - return r; + r = dhcp6_lease_get_rapid_commit(lease, &rapid_commit); + if (r < 0) + return r; + + if (!rapid_commit) + return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), + "Received reply message without rapid commit flag, ignoring."); + + log_dhcp6_client(client, "Processed %s message", dhcp6_message_type_to_string(message->type)); + + sd_dhcp6_lease_unref(client->lease); + client->lease = TAKE_PTR(lease); + + return client_enter_bound_state(client); + } r = dhcp6_lease_get_preference(lease, &pref_advertise); if (r < 0) return r; - r = dhcp6_lease_get_preference(client->lease, &pref_lease); + if (client->lease) { + r = dhcp6_lease_get_preference(client->lease, &pref_lease); + if (r < 0) + return r; + } - if (r < 0 || pref_advertise > pref_lease) { + log_dhcp6_client(client, "Processed %s message", dhcp6_message_type_to_string(message->type)); + + if (!client->lease || pref_advertise > pref_lease) { + /* If this is the first advertise message or has higher preference, then save the lease. */ sd_dhcp6_lease_unref(client->lease); client->lease = TAKE_PTR(lease); - r = 0; } if (pref_advertise == 255 || client->retransmit_count > 1) - r = DHCP6_STATE_REQUEST; + (void) client_start_transaction(client, DHCP6_STATE_REQUEST); - return r; + return 0; } static int client_receive_message( @@ -1447,7 +1173,7 @@ static int client_receive_message( revents, void *userdata) { - sd_dhcp6_client *client = userdata; + sd_dhcp6_client *client = ASSERT_PTR(userdata); DHCP6_CLIENT_DONT_DESTROY(client); /* This needs to be initialized with zero. See #20741. */ CMSG_BUFFER_TYPE(CMSG_SPACE_TIMEVAL) control = {}; @@ -1466,11 +1192,6 @@ static int client_receive_message( _cleanup_free_ DHCP6Message *message = NULL; struct in6_addr *server_address = NULL; ssize_t buflen, len; - int r = 0; - - assert(s); - assert(client); - assert(client->event); buflen = next_datagram_size_fd(fd); if (buflen < 0) { @@ -1517,236 +1238,43 @@ static int client_receive_message( triple_timestamp_from_realtime(&t, timeval_load((struct timeval*) CMSG_DATA(cmsg))); } - if (!triple_timestamp_is_set(&t)) - triple_timestamp_get(&t); - - if (!IN_SET(message->type, DHCP6_MESSAGE_ADVERTISE, DHCP6_MESSAGE_REPLY, DHCP6_MESSAGE_RECONFIGURE)) { - const char *type_str = dhcp6_message_type_to_string(message->type); - if (type_str) - log_dhcp6_client(client, "Received unexpected %s message, ignoring.", type_str); - else - log_dhcp6_client(client, "Received unsupported message type %u, ignoring.", message->type); - return 0; - } - if (client->transaction_id != (message->transaction_id & htobe32(0x00ffffff))) return 0; switch (client->state) { case DHCP6_STATE_INFORMATION_REQUEST: - r = client_receive_reply(client, message, len, &t, server_address); - if (r < 0) { - log_dhcp6_client_errno(client, r, "Failed to process received reply message, ignoring: %m"); + if (client_process_information(client, message, len, &t, server_address) < 0) return 0; - } - - client_notify(client, SD_DHCP6_CLIENT_EVENT_INFORMATION_REQUEST); - - client_start(client, DHCP6_STATE_STOPPED); - break; case DHCP6_STATE_SOLICITATION: - r = client_receive_advertise(client, message, len, &t, server_address); - if (r < 0) { - log_dhcp6_client_errno(client, r, "Failed to process received advertise message, ignoring: %m"); + if (client_process_advertise_or_rapid_commit_reply(client, message, len, &t, server_address) < 0) return 0; - } - - if (r == DHCP6_STATE_REQUEST) { - client_start(client, r); - break; - } + break; - _fallthrough_; /* for Solicitation Rapid Commit option check */ case DHCP6_STATE_REQUEST: case DHCP6_STATE_RENEW: case DHCP6_STATE_REBIND: - - r = client_receive_reply(client, message, len, &t, server_address); - if (r < 0) { - log_dhcp6_client_errno(client, r, "Failed to process received reply message, ignoring: %m"); + if (client_process_reply(client, message, len, &t, server_address) < 0) return 0; - } - - if (r == DHCP6_STATE_BOUND) { - r = client_start(client, DHCP6_STATE_BOUND); - if (r < 0) { - client_stop(client, r); - return 0; - } - - client_notify(client, SD_DHCP6_CLIENT_EVENT_IP_ACQUIRE); - } - break; case DHCP6_STATE_BOUND: - - break; - case DHCP6_STATE_STOPPED: - return 0; default: assert_not_reached(); } - log_dhcp6_client(client, "Recv %s", - dhcp6_message_type_to_string(message->type)); - return 0; } -static int client_get_lifetime(sd_dhcp6_client *client, uint32_t *lifetime_t1, - uint32_t *lifetime_t2) { - assert_return(client, -EINVAL); - assert_return(client->lease, -EINVAL); - - if (FLAGS_SET(client->request_ia, DHCP6_REQUEST_IA_NA) && client->lease->ia.addresses) { - *lifetime_t1 = be32toh(client->lease->ia.ia_na.lifetime_t1); - *lifetime_t2 = be32toh(client->lease->ia.ia_na.lifetime_t2); - - return 0; - } - - if (FLAGS_SET(client->request_ia, DHCP6_REQUEST_IA_PD) && client->lease->pd.addresses) { - *lifetime_t1 = be32toh(client->lease->pd.ia_pd.lifetime_t1); - *lifetime_t2 = be32toh(client->lease->pd.ia_pd.lifetime_t2); - - return 0; - } - - return -ENOMSG; -} - -static int client_start(sd_dhcp6_client *client, DHCP6State state) { - int r; - usec_t timeout, time_now; - uint32_t lifetime_t1, lifetime_t2; - - assert_return(client, -EINVAL); - assert_return(client->event, -EINVAL); - assert_return(client->ifindex > 0, -EINVAL); - assert_return(client->state != state, -EINVAL); - - (void) event_source_disable(client->timeout_resend_expire); - (void) event_source_disable(client->timeout_resend); - client->retransmit_time = 0; - client->retransmit_count = 0; - - r = sd_event_now(client->event, clock_boottime_or_monotonic(), &time_now); - if (r < 0) - return r; - - if (!client->receive_message) { - r = sd_event_add_io(client->event, &client->receive_message, - client->fd, EPOLLIN, client_receive_message, - client); - if (r < 0) - goto error; - - r = sd_event_source_set_priority(client->receive_message, - client->event_priority); - if (r < 0) - goto error; - - r = sd_event_source_set_description(client->receive_message, - "dhcp6-receive-message"); - if (r < 0) - goto error; - } - - switch (state) { - case DHCP6_STATE_STOPPED: - if (client->state == DHCP6_STATE_INFORMATION_REQUEST) { - client->state = DHCP6_STATE_STOPPED; - - return 0; - } - - _fallthrough_; - case DHCP6_STATE_SOLICITATION: - client->state = DHCP6_STATE_SOLICITATION; - - break; - - case DHCP6_STATE_INFORMATION_REQUEST: - case DHCP6_STATE_REQUEST: - case DHCP6_STATE_RENEW: - case DHCP6_STATE_REBIND: - - client->state = state; - - break; - - case DHCP6_STATE_BOUND: - - r = client_get_lifetime(client, &lifetime_t1, &lifetime_t2); - if (r < 0) - goto error; - - if (lifetime_t1 == 0xffffffff || lifetime_t2 == 0xffffffff) { - log_dhcp6_client(client, "Infinite T1 0x%08x or T2 0x%08x", - lifetime_t1, lifetime_t2); - - return 0; - } - - timeout = client_timeout_compute_random(lifetime_t1 * USEC_PER_SEC); - - log_dhcp6_client(client, "T1 expires in %s", FORMAT_TIMESPAN(timeout, USEC_PER_SEC)); - - r = event_reset_time(client->event, &client->timeout_t1, - clock_boottime_or_monotonic(), - time_now + timeout, 10 * USEC_PER_SEC, - client_timeout_t1, client, - client->event_priority, "dhcp6-t1-timeout", true); - if (r < 0) - goto error; - - timeout = client_timeout_compute_random(lifetime_t2 * USEC_PER_SEC); - - log_dhcp6_client(client, "T2 expires in %s", FORMAT_TIMESPAN(timeout, USEC_PER_SEC)); - - r = event_reset_time(client->event, &client->timeout_t2, - clock_boottime_or_monotonic(), - time_now + timeout, 10 * USEC_PER_SEC, - client_timeout_t2, client, - client->event_priority, "dhcp6-t2-timeout", true); - if (r < 0) - goto error; - - client->state = state; - - return 0; - default: - assert_not_reached(); - } - - client->transaction_id = random_u32() & htobe32(0x00ffffff); - client->transaction_start = time_now; - - r = event_reset_time(client->event, &client->timeout_resend, - clock_boottime_or_monotonic(), - 0, 0, - client_timeout_resend, client, - client->event_priority, "dhcp6-resend-timeout", true); - if (r < 0) - goto error; - - return 0; - - error: - client_reset(client); - return r; -} - int sd_dhcp6_client_stop(sd_dhcp6_client *client) { if (!client) return 0; client_stop(client, SD_DHCP6_CLIENT_EVENT_STOP); + client->receive_message = sd_event_source_unref(client->receive_message); client->fd = safe_close(client->fd); return 0; @@ -1766,16 +1294,12 @@ int sd_dhcp6_client_start(sd_dhcp6_client *client) { assert_return(client->event, -EINVAL); assert_return(client->ifindex > 0, -EINVAL); assert_return(in6_addr_is_link_local(&client->local_address) > 0, -EINVAL); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); + assert_return(client->information_request || client->request_ia != 0, -EINVAL); - if (client->state != DHCP6_STATE_STOPPED) - return -EBUSY; - - if (!client->information_request && client->request_ia == 0) - return -EINVAL; - - r = client_reset(client); - if (r < 0) - return r; + /* Even if the client is in the STOPPED state, the lease acquired in the previous information + * request may be stored. */ + client->lease = sd_dhcp6_lease_unref(client->lease); r = client_ensure_iaid(client); if (r < 0) @@ -1790,7 +1314,7 @@ int sd_dhcp6_client_start(sd_dhcp6_client *client) { if (r < 0) { _cleanup_free_ char *p = NULL; - (void) in_addr_to_string(AF_INET6, (const union in_addr_union*) &client->local_address, &p); + (void) in6_addr_to_string(&client->local_address, &p); return log_dhcp6_client_errno(client, r, "Failed to bind to UDP socket at address %s: %m", strna(p)); } @@ -1798,6 +1322,24 @@ int sd_dhcp6_client_start(sd_dhcp6_client *client) { client->fd = r; } + if (!client->receive_message) { + _cleanup_(sd_event_source_disable_unrefp) sd_event_source *s = NULL; + + r = sd_event_add_io(client->event, &s, client->fd, EPOLLIN, client_receive_message, client); + if (r < 0) + return r; + + r = sd_event_source_set_priority(s, client->event_priority); + if (r < 0) + return r; + + r = sd_event_source_set_description(s, "dhcp6-receive-message"); + if (r < 0) + return r; + + client->receive_message = TAKE_PTR(s); + } + if (client->information_request) { usec_t t = now(CLOCK_MONOTONIC); @@ -1808,10 +1350,10 @@ int sd_dhcp6_client_start(sd_dhcp6_client *client) { state = DHCP6_STATE_INFORMATION_REQUEST; } - log_dhcp6_client(client, "Started in %s mode", + log_dhcp6_client(client, "Starting in %s mode", client->information_request ? "Information request" : "Managed"); - return client_start(client, state); + return client_start_transaction(client, state); } int sd_dhcp6_client_attach_event(sd_dhcp6_client *client, sd_event *event, int64_t priority) { @@ -1819,6 +1361,7 @@ int sd_dhcp6_client_attach_event(sd_dhcp6_client *client, sd_event *event, int64 assert_return(client, -EINVAL); assert_return(!client->event, -EBUSY); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); if (event) client->event = sd_event_ref(event); @@ -1835,6 +1378,7 @@ int sd_dhcp6_client_attach_event(sd_dhcp6_client *client, sd_event *event, int64 int sd_dhcp6_client_detach_event(sd_dhcp6_client *client) { assert_return(client, -EINVAL); + assert_return(!sd_dhcp6_client_is_running(client), -EBUSY); client->event = sd_event_unref(client->event); @@ -1848,24 +1392,26 @@ sd_event *sd_dhcp6_client_get_event(sd_dhcp6_client *client) { } static sd_dhcp6_client *dhcp6_client_free(sd_dhcp6_client *client) { - assert(client); + if (!client) + return NULL; - client->timeout_resend = sd_event_source_unref(client->timeout_resend); - client->timeout_resend_expire = sd_event_source_unref(client->timeout_resend_expire); - client->timeout_t1 = sd_event_source_unref(client->timeout_t1); - client->timeout_t2 = sd_event_source_unref(client->timeout_t2); + sd_dhcp6_lease_unref(client->lease); - client_reset(client); + sd_event_source_disable_unref(client->receive_message); + sd_event_source_disable_unref(client->timeout_resend); + sd_event_source_disable_unref(client->timeout_expire); + sd_event_source_disable_unref(client->timeout_t1); + sd_event_source_disable_unref(client->timeout_t2); + sd_event_unref(client->event); client->fd = safe_close(client->fd); - sd_dhcp6_client_detach_event(client); - free(client->req_opts); free(client->fqdn); free(client->mudurl); - + dhcp6_ia_clear_addresses(&client->ia_pd); ordered_hashmap_free(client->extra_options); + ordered_set_free(client->vendor_options); strv_free(client->user_class); strv_free(client->vendor_class); free(client->ifname); @@ -1901,8 +1447,6 @@ int sd_dhcp6_client_new(sd_dhcp6_client **ret) { .request_ia = DHCP6_REQUEST_IA_NA | DHCP6_REQUEST_IA_PD, .fd = -1, .req_opts_len = ELEMENTSOF(default_req_opts), - .hint_pd_prefix.iapdprefix.lifetime_preferred = (be32_t) -1, - .hint_pd_prefix.iapdprefix.lifetime_valid = (be32_t) -1, .req_opts = TAKE_PTR(req_opts), }; diff --git a/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-lease.c b/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-lease.c index b46a2e33..fd47cb73 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-lease.c +++ b/src/libnm-systemd-core/src/libsystemd-network/sd-dhcp6-lease.c @@ -8,10 +8,21 @@ #include <errno.h> #include "alloc-util.h" +#include "dhcp6-internal.h" #include "dhcp6-lease-internal.h" -#include "dhcp6-protocol.h" #include "strv.h" -#include "util.h" + +#define IRT_DEFAULT (1 * USEC_PER_DAY) +#define IRT_MINIMUM (600 * USEC_PER_SEC) + +static void dhcp6_lease_set_timestamp(sd_dhcp6_lease *lease, const triple_timestamp *timestamp) { + assert(lease); + + if (timestamp && triple_timestamp_is_set(timestamp)) + lease->timestamp = *timestamp; + else + triple_timestamp_get(&lease->timestamp); +} int sd_dhcp6_lease_get_timestamp(sd_dhcp6_lease *lease, clockid_t clock, uint64_t *ret) { assert_return(lease, -EINVAL); @@ -26,63 +37,105 @@ int sd_dhcp6_lease_get_timestamp(sd_dhcp6_lease *lease, clockid_t clock, uint64_ return 0; } -int sd_dhcp6_lease_get_server_address(sd_dhcp6_lease *lease, struct in6_addr *ret) { - assert_return(lease, -EINVAL); - assert_return(ret, -EINVAL); - - *ret = lease->server_address; - return 0; +static usec_t sec2usec(uint32_t sec) { + return sec == UINT32_MAX ? USEC_INFINITY : sec * USEC_PER_SEC; } -int dhcp6_lease_ia_rebind_expire(const DHCP6IA *ia, uint32_t *expire) { - DHCP6Address *addr; - uint32_t valid = 0, t; +static void dhcp6_lease_set_lifetime(sd_dhcp6_lease *lease) { + uint32_t t1 = UINT32_MAX, t2 = UINT32_MAX, min_valid_lt = UINT32_MAX; + + assert(lease); + assert(lease->ia_na || lease->ia_pd); - assert_return(ia, -EINVAL); - assert_return(expire, -EINVAL); + if (lease->ia_na) { + t1 = MIN(t1, be32toh(lease->ia_na->header.lifetime_t1)); + t2 = MIN(t2, be32toh(lease->ia_na->header.lifetime_t2)); - LIST_FOREACH(addresses, addr, ia->addresses) { - t = be32toh(addr->iaaddr.lifetime_valid); - if (valid < t) - valid = t; + LIST_FOREACH(addresses, a, lease->ia_na->addresses) + min_valid_lt = MIN(min_valid_lt, be32toh(a->iaaddr.lifetime_valid)); } - t = be32toh(ia->ia_na.lifetime_t2); - if (t > valid) - return -EINVAL; + if (lease->ia_pd) { + t1 = MIN(t1, be32toh(lease->ia_pd->header.lifetime_t1)); + t2 = MIN(t2, be32toh(lease->ia_pd->header.lifetime_t2)); - *expire = valid - t; + LIST_FOREACH(addresses, a, lease->ia_pd->addresses) + min_valid_lt = MIN(min_valid_lt, be32toh(a->iapdprefix.lifetime_valid)); + } + if (t2 == 0 || t2 > min_valid_lt) { + /* If T2 is zero or longer than the minimum valid lifetime of the addresses or prefixes, + * then adjust lifetime with it. */ + t1 = min_valid_lt / 2; + t2 = min_valid_lt / 10 * 8; + } + + lease->lifetime_valid = sec2usec(min_valid_lt); + lease->lifetime_t1 = sec2usec(t1); + lease->lifetime_t2 = sec2usec(t2); +} + +int dhcp6_lease_get_lifetime(sd_dhcp6_lease *lease, usec_t *ret_t1, usec_t *ret_t2, usec_t *ret_valid) { + assert(lease); + + if (!lease->ia_na && !lease->ia_pd) + return -ENODATA; + + if (ret_t1) + *ret_t1 = lease->lifetime_t1; + if (ret_t2) + *ret_t2 = lease->lifetime_t2; + if (ret_valid) + *ret_valid = lease->lifetime_valid; return 0; } -DHCP6IA *dhcp6_lease_free_ia(DHCP6IA *ia) { - DHCP6Address *address; +static void dhcp6_lease_set_server_address(sd_dhcp6_lease *lease, const struct in6_addr *server_address) { + assert(lease); - if (!ia) - return NULL; + if (server_address) + lease->server_address = *server_address; + else + lease->server_address = (struct in6_addr) {}; +} - while (ia->addresses) { - address = ia->addresses; +int sd_dhcp6_lease_get_server_address(sd_dhcp6_lease *lease, struct in6_addr *ret) { + assert_return(lease, -EINVAL); + assert_return(ret, -EINVAL); - LIST_REMOVE(addresses, ia->addresses, address); + *ret = lease->server_address; + return 0; +} - free(address); - } +void dhcp6_ia_clear_addresses(DHCP6IA *ia) { + assert(ia); + + LIST_FOREACH(addresses, a, ia->addresses) + free(a); + + ia->addresses = NULL; +} + +DHCP6IA *dhcp6_ia_free(DHCP6IA *ia) { + if (!ia) + return NULL; + + dhcp6_ia_clear_addresses(ia); - return NULL; + return mfree(ia); } int dhcp6_lease_set_clientid(sd_dhcp6_lease *lease, const uint8_t *id, size_t len) { - uint8_t *clientid; + uint8_t *clientid = NULL; - assert_return(lease, -EINVAL); - assert_return(id, -EINVAL); - assert_return(len > 0, -EINVAL); + assert(lease); + assert(id || len == 0); - clientid = memdup(id, len); - if (!clientid) - return -ENOMEM; + if (len > 0) { + clientid = memdup(id, len); + if (!clientid) + return -ENOMEM; + } free_and_replace(lease->clientid, clientid); lease->clientid_len = len; @@ -91,7 +144,7 @@ int dhcp6_lease_set_clientid(sd_dhcp6_lease *lease, const uint8_t *id, size_t le } int dhcp6_lease_get_clientid(sd_dhcp6_lease *lease, uint8_t **ret_id, size_t *ret_len) { - assert_return(lease, -EINVAL); + assert(lease); if (!lease->clientid) return -ENODATA; @@ -105,15 +158,16 @@ int dhcp6_lease_get_clientid(sd_dhcp6_lease *lease, uint8_t **ret_id, size_t *re } int dhcp6_lease_set_serverid(sd_dhcp6_lease *lease, const uint8_t *id, size_t len) { - uint8_t *serverid; + uint8_t *serverid = NULL; - assert_return(lease, -EINVAL); - assert_return(id, -EINVAL); - assert_return(len > 0, -EINVAL); + assert(lease); + assert(id || len == 0); - serverid = memdup(id, len); - if (!serverid) - return -ENOMEM; + if (len > 0) { + serverid = memdup(id, len); + if (!serverid) + return -ENOMEM; + } free_and_replace(lease->serverid, serverid); lease->serverid_len = len; @@ -122,7 +176,7 @@ int dhcp6_lease_set_serverid(sd_dhcp6_lease *lease, const uint8_t *id, size_t le } int dhcp6_lease_get_serverid(sd_dhcp6_lease *lease, uint8_t **ret_id, size_t *ret_len) { - assert_return(lease, -EINVAL); + assert(lease); if (!lease->serverid) return -ENODATA; @@ -131,107 +185,99 @@ int dhcp6_lease_get_serverid(sd_dhcp6_lease *lease, uint8_t **ret_id, size_t *re *ret_id = lease->serverid; if (ret_len) *ret_len = lease->serverid_len; - return 0; } int dhcp6_lease_set_preference(sd_dhcp6_lease *lease, uint8_t preference) { - assert_return(lease, -EINVAL); + assert(lease); lease->preference = preference; - return 0; } -int dhcp6_lease_get_preference(sd_dhcp6_lease *lease, uint8_t *preference) { - assert_return(preference, -EINVAL); - - if (!lease) - return -EINVAL; - - *preference = lease->preference; +int dhcp6_lease_get_preference(sd_dhcp6_lease *lease, uint8_t *ret) { + assert(lease); + assert(ret); + *ret = lease->preference; return 0; } int dhcp6_lease_set_rapid_commit(sd_dhcp6_lease *lease) { - assert_return(lease, -EINVAL); + assert(lease); lease->rapid_commit = true; - return 0; } -int dhcp6_lease_get_rapid_commit(sd_dhcp6_lease *lease, bool *rapid_commit) { - assert_return(lease, -EINVAL); - assert_return(rapid_commit, -EINVAL); - - *rapid_commit = lease->rapid_commit; +int dhcp6_lease_get_rapid_commit(sd_dhcp6_lease *lease, bool *ret) { + assert(lease); + assert(ret); + *ret = lease->rapid_commit; return 0; } -int sd_dhcp6_lease_get_address(sd_dhcp6_lease *lease, struct in6_addr *addr, - uint32_t *lifetime_preferred, - uint32_t *lifetime_valid) { +int sd_dhcp6_lease_get_address( + sd_dhcp6_lease *lease, + struct in6_addr *ret_addr, + uint32_t *ret_lifetime_preferred, + uint32_t *ret_lifetime_valid) { + assert_return(lease, -EINVAL); - assert_return(addr, -EINVAL); - assert_return(lifetime_preferred, -EINVAL); - assert_return(lifetime_valid, -EINVAL); if (!lease->addr_iter) - return -ENOMSG; + return -ENODATA; - memcpy(addr, &lease->addr_iter->iaaddr.address, - sizeof(struct in6_addr)); - *lifetime_preferred = - be32toh(lease->addr_iter->iaaddr.lifetime_preferred); - *lifetime_valid = be32toh(lease->addr_iter->iaaddr.lifetime_valid); + if (ret_addr) + *ret_addr = lease->addr_iter->iaaddr.address; + if (ret_lifetime_preferred) + *ret_lifetime_preferred = be32toh(lease->addr_iter->iaaddr.lifetime_preferred); + if (ret_lifetime_valid) + *ret_lifetime_valid = be32toh(lease->addr_iter->iaaddr.lifetime_valid); lease->addr_iter = lease->addr_iter->addresses_next; - return 0; } void sd_dhcp6_lease_reset_address_iter(sd_dhcp6_lease *lease) { if (lease) - lease->addr_iter = lease->ia.addresses; + lease->addr_iter = lease->ia_na ? lease->ia_na->addresses : NULL; } -int sd_dhcp6_lease_get_pd(sd_dhcp6_lease *lease, struct in6_addr *prefix, - uint8_t *prefix_len, - uint32_t *lifetime_preferred, - uint32_t *lifetime_valid) { +int sd_dhcp6_lease_get_pd( + sd_dhcp6_lease *lease, + struct in6_addr *ret_prefix, + uint8_t *ret_prefix_len, + uint32_t *ret_lifetime_preferred, + uint32_t *ret_lifetime_valid) { + assert_return(lease, -EINVAL); - assert_return(prefix, -EINVAL); - assert_return(prefix_len, -EINVAL); - assert_return(lifetime_preferred, -EINVAL); - assert_return(lifetime_valid, -EINVAL); if (!lease->prefix_iter) - return -ENOMSG; + return -ENODATA; - memcpy(prefix, &lease->prefix_iter->iapdprefix.address, - sizeof(struct in6_addr)); - *prefix_len = lease->prefix_iter->iapdprefix.prefixlen; - *lifetime_preferred = - be32toh(lease->prefix_iter->iapdprefix.lifetime_preferred); - *lifetime_valid = - be32toh(lease->prefix_iter->iapdprefix.lifetime_valid); + if (ret_prefix) + *ret_prefix = lease->prefix_iter->iapdprefix.address; + if (ret_prefix_len) + *ret_prefix_len = lease->prefix_iter->iapdprefix.prefixlen; + if (ret_lifetime_preferred) + *ret_lifetime_preferred = be32toh(lease->prefix_iter->iapdprefix.lifetime_preferred); + if (ret_lifetime_valid) + *ret_lifetime_valid = be32toh(lease->prefix_iter->iapdprefix.lifetime_valid); lease->prefix_iter = lease->prefix_iter->addresses_next; - return 0; } void sd_dhcp6_lease_reset_pd_prefix_iter(sd_dhcp6_lease *lease) { if (lease) - lease->prefix_iter = lease->pd.addresses; + lease->prefix_iter = lease->ia_pd ? lease->ia_pd->addresses : NULL; } int dhcp6_lease_add_dns(sd_dhcp6_lease *lease, const uint8_t *optval, size_t optlen) { - assert_return(lease, -EINVAL); - assert_return(optval, -EINVAL); + assert(lease); + assert(optval || optlen == 0); if (optlen == 0) return 0; @@ -243,7 +289,7 @@ int sd_dhcp6_lease_get_dns(sd_dhcp6_lease *lease, const struct in6_addr **ret) { assert_return(lease, -EINVAL); if (!lease->dns) - return -ENOENT; + return -ENODATA; if (ret) *ret = lease->dns; @@ -255,8 +301,8 @@ int dhcp6_lease_add_domains(sd_dhcp6_lease *lease, const uint8_t *optval, size_t _cleanup_strv_free_ char **domains = NULL; int r; - assert_return(lease, -EINVAL); - assert_return(optval, -EINVAL); + assert(lease); + assert(optval || optlen == 0); if (optlen == 0) return 0; @@ -273,7 +319,7 @@ int sd_dhcp6_lease_get_domains(sd_dhcp6_lease *lease, char ***ret) { assert_return(ret, -EINVAL); if (!lease->domains) - return -ENOENT; + return -ENODATA; *ret = lease->domains; return strv_length(lease->domains); @@ -282,8 +328,8 @@ int sd_dhcp6_lease_get_domains(sd_dhcp6_lease *lease, char ***ret) { int dhcp6_lease_add_ntp(sd_dhcp6_lease *lease, const uint8_t *optval, size_t optlen) { int r; - assert_return(lease, -EINVAL); - assert_return(optval, -EINVAL); + assert(lease); + assert(optval || optlen == 0); for (size_t offset = 0; offset < optlen;) { const uint8_t *subval; @@ -294,11 +340,11 @@ int dhcp6_lease_add_ntp(sd_dhcp6_lease *lease, const uint8_t *optval, size_t opt if (r < 0) return r; - switch(subopt) { + switch (subopt) { case DHCP6_NTP_SUBOPTION_SRV_ADDR: case DHCP6_NTP_SUBOPTION_MC_ADDR: if (sublen != 16) - return 0; + return -EINVAL; r = dhcp6_option_parse_addresses(subval, sublen, &lease->ntp, &lease->ntp_count); if (r < 0) @@ -328,8 +374,8 @@ int dhcp6_lease_add_ntp(sd_dhcp6_lease *lease, const uint8_t *optval, size_t opt } int dhcp6_lease_add_sntp(sd_dhcp6_lease *lease, const uint8_t *optval, size_t optlen) { - assert_return(lease, -EINVAL); - assert_return(optval, -EINVAL); + assert(lease); + assert(optval || optlen == 0); if (optlen == 0) return 0; @@ -354,14 +400,14 @@ int sd_dhcp6_lease_get_ntp_addrs(sd_dhcp6_lease *lease, const struct in6_addr ** return lease->sntp_count; } - return -ENOENT; + return -ENODATA; } int sd_dhcp6_lease_get_ntp_fqdn(sd_dhcp6_lease *lease, char ***ret) { assert_return(lease, -EINVAL); if (!lease->ntp_fqdn) - return -ENOENT; + return -ENODATA; if (ret) *ret = lease->ntp_fqdn; @@ -369,11 +415,14 @@ int sd_dhcp6_lease_get_ntp_fqdn(sd_dhcp6_lease *lease, char ***ret) { } int dhcp6_lease_set_fqdn(sd_dhcp6_lease *lease, const uint8_t *optval, size_t optlen) { - int r; char *fqdn; + int r; - assert_return(lease, -EINVAL); - assert_return(optval, -EINVAL); + assert(lease); + assert(optval || optlen == 0); + + if (optlen == 0) + return 0; if (optlen < 2) return -ENODATA; @@ -392,20 +441,222 @@ int sd_dhcp6_lease_get_fqdn(sd_dhcp6_lease *lease, const char **ret) { assert_return(ret, -EINVAL); if (!lease->fqdn) - return -ENOENT; + return -ENODATA; *ret = lease->fqdn; return 0; } +static int dhcp6_lease_parse_message( + sd_dhcp6_client *client, + sd_dhcp6_lease *lease, + const DHCP6Message *message, + size_t len) { + + usec_t irt = IRT_DEFAULT; + int r; + + assert(client); + assert(lease); + assert(message); + assert(len >= sizeof(DHCP6Message)); + + len -= sizeof(DHCP6Message); + for (size_t offset = 0; offset < len;) { + uint16_t optcode; + size_t optlen; + const uint8_t *optval; + + r = dhcp6_option_parse(message->options, len, &offset, &optcode, &optlen, &optval); + if (r < 0) + return r; + + switch (optcode) { + case SD_DHCP6_OPTION_CLIENTID: + if (dhcp6_lease_get_clientid(lease, NULL, NULL) >= 0) + return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), "%s contains multiple client IDs", + dhcp6_message_type_to_string(message->type)); + + r = dhcp6_lease_set_clientid(lease, optval, optlen); + if (r < 0) + return r; + + break; + + case SD_DHCP6_OPTION_SERVERID: + if (dhcp6_lease_get_serverid(lease, NULL, NULL) >= 0) + return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), "%s contains multiple server IDs", + dhcp6_message_type_to_string(message->type)); + + r = dhcp6_lease_set_serverid(lease, optval, optlen); + if (r < 0) + return r; + + break; + + case SD_DHCP6_OPTION_PREFERENCE: + if (optlen != 1) + return -EINVAL; + + r = dhcp6_lease_set_preference(lease, optval[0]); + if (r < 0) + return r; + + break; + + case SD_DHCP6_OPTION_STATUS_CODE: { + _cleanup_free_ char *msg = NULL; + + r = dhcp6_option_parse_status(optval, optlen, &msg); + if (r < 0) + return r; + + if (r > 0) + return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), + "Received %s message with non-zero status: %s%s%s", + dhcp6_message_type_to_string(message->type), + strempty(msg), isempty(msg) ? "" : ": ", + dhcp6_message_status_to_string(r)); + break; + } + case SD_DHCP6_OPTION_IA_NA: { + _cleanup_(dhcp6_ia_freep) DHCP6IA *ia = NULL; + + if (client->state == DHCP6_STATE_INFORMATION_REQUEST) { + log_dhcp6_client(client, "Ignoring IA NA option in information requesting mode."); + break; + } + + r = dhcp6_option_parse_ia(client, client->ia_na.header.id, optcode, optlen, optval, &ia); + if (r == -ENOMEM) + return r; + if (r < 0) + continue; + + if (lease->ia_na) { + log_dhcp6_client(client, "Received duplicate matching IA_NA option, ignoring."); + continue; + } + + dhcp6_ia_free(lease->ia_na); + lease->ia_na = TAKE_PTR(ia); + break; + } + case SD_DHCP6_OPTION_IA_PD: { + _cleanup_(dhcp6_ia_freep) DHCP6IA *ia = NULL; + + if (client->state == DHCP6_STATE_INFORMATION_REQUEST) { + log_dhcp6_client(client, "Ignoring IA PD option in information requesting mode."); + break; + } + + r = dhcp6_option_parse_ia(client, client->ia_pd.header.id, optcode, optlen, optval, &ia); + if (r == -ENOMEM) + return r; + if (r < 0) + continue; + + if (lease->ia_pd) { + log_dhcp6_client(client, "Received duplicate matching IA_PD option, ignoring."); + continue; + } + + dhcp6_ia_free(lease->ia_pd); + lease->ia_pd = TAKE_PTR(ia); + break; + } + case SD_DHCP6_OPTION_RAPID_COMMIT: + r = dhcp6_lease_set_rapid_commit(lease); + if (r < 0) + return r; + + break; + + case SD_DHCP6_OPTION_DNS_SERVERS: + r = dhcp6_lease_add_dns(lease, optval, optlen); + if (r < 0) + log_dhcp6_client_errno(client, r, "Failed to parse DNS server option, ignoring: %m"); + + break; + + case SD_DHCP6_OPTION_DOMAIN_LIST: + r = dhcp6_lease_add_domains(lease, optval, optlen); + if (r < 0) + log_dhcp6_client_errno(client, r, "Failed to parse domain list option, ignoring: %m"); + + break; + + case SD_DHCP6_OPTION_NTP_SERVER: + r = dhcp6_lease_add_ntp(lease, optval, optlen); + if (r < 0) + log_dhcp6_client_errno(client, r, "Failed to parse NTP server option, ignoring: %m"); + + break; + + case SD_DHCP6_OPTION_SNTP_SERVERS: + r = dhcp6_lease_add_sntp(lease, optval, optlen); + if (r < 0) + log_dhcp6_client_errno(client, r, "Failed to parse SNTP server option, ignoring: %m"); + + break; + + case SD_DHCP6_OPTION_CLIENT_FQDN: + r = dhcp6_lease_set_fqdn(lease, optval, optlen); + if (r < 0) + log_dhcp6_client_errno(client, r, "Failed to parse FQDN option, ignoring: %m"); + + break; + + case SD_DHCP6_OPTION_INFORMATION_REFRESH_TIME: + if (optlen != 4) + return -EINVAL; + + irt = unaligned_read_be32((be32_t *) optval) * USEC_PER_SEC; + break; + } + } + + uint8_t *clientid; + size_t clientid_len; + if (dhcp6_lease_get_clientid(lease, &clientid, &clientid_len) < 0) + return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), + "%s message does not contain client ID. Ignoring.", + dhcp6_message_type_to_string(message->type)); + + if (memcmp_nn(clientid, clientid_len, &client->duid, client->duid_len) != 0) + return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), + "The client ID in %s message does not match. Ignoring.", + dhcp6_message_type_to_string(message->type)); + + if (client->state == DHCP6_STATE_INFORMATION_REQUEST) { + client->information_refresh_time_usec = MAX(irt, IRT_MINIMUM); + log_dhcp6_client(client, "New information request will be refused in %s.", + FORMAT_TIMESPAN(client->information_refresh_time_usec, USEC_PER_SEC)); + + } else { + r = dhcp6_lease_get_serverid(lease, NULL, NULL); + if (r < 0) + return log_dhcp6_client_errno(client, r, "%s has no server id", + dhcp6_message_type_to_string(message->type)); + + if (!lease->ia_na && !lease->ia_pd) + return log_dhcp6_client_errno(client, SYNTHETIC_ERRNO(EINVAL), + "No IA_PD prefix or IA_NA address received. Ignoring."); + + dhcp6_lease_set_lifetime(lease); + } + + return 0; +} + static sd_dhcp6_lease *dhcp6_lease_free(sd_dhcp6_lease *lease) { if (!lease) return NULL; free(lease->clientid); free(lease->serverid); - dhcp6_lease_free_ia(&lease->ia); - dhcp6_lease_free_ia(&lease->pd); + dhcp6_ia_free(lease->ia_na); + dhcp6_ia_free(lease->ia_pd); free(lease->dns); free(lease->fqdn); strv_free(lease->domains); @@ -421,14 +672,47 @@ DEFINE_TRIVIAL_REF_UNREF_FUNC(sd_dhcp6_lease, sd_dhcp6_lease, dhcp6_lease_free); int dhcp6_lease_new(sd_dhcp6_lease **ret) { sd_dhcp6_lease *lease; - lease = new0(sd_dhcp6_lease, 1); + assert(ret); + + lease = new(sd_dhcp6_lease, 1); if (!lease) return -ENOMEM; - lease->n_ref = 1; - - LIST_HEAD_INIT(lease->ia.addresses); + *lease = (sd_dhcp6_lease) { + .n_ref = 1, + }; *ret = lease; return 0; } + +int dhcp6_lease_new_from_message( + sd_dhcp6_client *client, + const DHCP6Message *message, + size_t len, + const triple_timestamp *timestamp, + const struct in6_addr *server_address, + sd_dhcp6_lease **ret) { + + _cleanup_(sd_dhcp6_lease_unrefp) sd_dhcp6_lease *lease = NULL; + int r; + + assert(client); + assert(message); + assert(len >= sizeof(DHCP6Message)); + assert(ret); + + r = dhcp6_lease_new(&lease); + if (r < 0) + return r; + + dhcp6_lease_set_timestamp(lease, timestamp); + dhcp6_lease_set_server_address(lease, server_address); + + r = dhcp6_lease_parse_message(client, lease, message, len); + if (r < 0) + return r; + + *ret = TAKE_PTR(lease); + return 0; +} diff --git a/src/libnm-systemd-core/src/libsystemd-network/sd-lldp-rx.c b/src/libnm-systemd-core/src/libsystemd-network/sd-lldp-rx.c index f50e9c8d..496eb8f6 100644 --- a/src/libnm-systemd-core/src/libsystemd-network/sd-lldp-rx.c +++ b/src/libnm-systemd-core/src/libsystemd-network/sd-lldp-rx.c @@ -71,7 +71,7 @@ static int lldp_rx_make_space(sd_lldp_rx *lldp_rx, size_t extra) { goto remove_one; if (t == USEC_INFINITY) - t = now(clock_boottime_or_monotonic()); + t = now(CLOCK_BOOTTIME); if (n->until > t) break; @@ -450,7 +450,7 @@ static int lldp_rx_start_timer(sd_lldp_rx *lldp_rx, sd_lldp_neighbor *neighbor) return event_source_disable(lldp_rx->timer_event_source); return event_reset_time(lldp_rx->event, &lldp_rx->timer_event_source, - clock_boottime_or_monotonic(), + CLOCK_BOOTTIME, n->until, 0, on_timer_event, lldp_rx, lldp_rx->event_priority, "lldp-rx-timer", true); diff --git a/src/libnm-systemd-core/src/libsystemd/sd-event/event-util.c b/src/libnm-systemd-core/src/libsystemd/sd-event/event-util.c index 13e16f9b..6e3c2ce9 100644 --- a/src/libnm-systemd-core/src/libsystemd/sd-event/event-util.c +++ b/src/libnm-systemd-core/src/libsystemd/sd-event/event-util.c @@ -6,6 +6,7 @@ #include "event-source.h" #include "event-util.h" +#include "fd-util.h" #include "log.h" #include "string-util.h" @@ -123,3 +124,43 @@ int event_source_is_enabled(sd_event_source *s) { return sd_event_source_get_enabled(s, NULL); } + +#if 0 /* NM_IGNORED */ +int event_add_time_change(sd_event *e, sd_event_source **ret, sd_event_io_handler_t callback, void *userdata) { + _cleanup_(sd_event_source_unrefp) sd_event_source *s = NULL; + _cleanup_close_ int fd = -1; + int r; + + assert(e); + + /* Allocates an IO event source that gets woken up whenever the clock changes. Needs to be recreated on each event */ + + fd = time_change_fd(); + if (fd < 0) + return fd; + + r = sd_event_add_io(e, &s, fd, EPOLLIN, callback, userdata); + if (r < 0) + return r; + + r = sd_event_source_set_io_fd_own(s, true); + if (r < 0) + return r; + + TAKE_FD(fd); + + r = sd_event_source_set_description(s, "time-change"); + if (r < 0) + return r; + + if (ret) + *ret = TAKE_PTR(s); + else { + r = sd_event_source_set_floating(s, true); + if (r < 0) + return r; + } + + return 0; +} +#endif /* NM_IGNORED */ diff --git a/src/libnm-systemd-core/src/libsystemd/sd-event/event-util.h b/src/libnm-systemd-core/src/libsystemd/sd-event/event-util.h index 64a41992..abd043bd 100644 --- a/src/libnm-systemd-core/src/libsystemd/sd-event/event-util.h +++ b/src/libnm-systemd-core/src/libsystemd/sd-event/event-util.h @@ -29,3 +29,5 @@ int event_reset_time_relative( bool force_reset); int event_source_disable(sd_event_source *s); int event_source_is_enabled(sd_event_source *s); + +int event_add_time_change(sd_event *e, sd_event_source **ret, sd_event_io_handler_t callback, void *userdata); diff --git a/src/libnm-systemd-core/src/libsystemd/sd-event/sd-event.c b/src/libnm-systemd-core/src/libsystemd/sd-event/sd-event.c index e87d900c..240476e6 100644 --- a/src/libnm-systemd-core/src/libsystemd/sd-event/sd-event.c +++ b/src/libnm-systemd-core/src/libsystemd/sd-event/sd-event.c @@ -1924,7 +1924,6 @@ static int event_make_inode_data( static uint32_t inode_data_determine_mask(struct inode_data *d) { bool excl_unlink = true; uint32_t combined = 0; - sd_event_source *s; assert(d); @@ -3462,9 +3461,7 @@ static int event_inotify_data_process(sd_event *e, struct inotify_data *d) { /* The queue overran, let's pass this event to all event sources connected to this inotify * object */ - HASHMAP_FOREACH(inode_data, d->inodes) { - sd_event_source *s; - + HASHMAP_FOREACH(inode_data, d->inodes) LIST_FOREACH(inotify.by_inode_data, s, inode_data->event_sources) { if (event_source_is_offline(s)) @@ -3474,10 +3471,8 @@ static int event_inotify_data_process(sd_event *e, struct inotify_data *d) { if (r < 0) return r; } - } } else { struct inode_data *inode_data; - sd_event_source *s; /* Find the inode object for this watch descriptor. If IN_IGNORED is set we also remove it from * our watch descriptor table. */ @@ -3525,7 +3520,6 @@ static int event_inotify_data_process(sd_event *e, struct inotify_data *d) { } static int process_inotify(sd_event *e) { - struct inotify_data *d; int r, done = 0; assert(e); @@ -3910,6 +3904,7 @@ static int epoll_wait_usec( int msec; #if 0 static bool epoll_pwait2_absent = false; + int r; /* A wrapper that uses epoll_pwait2() if available, and falls back to epoll_wait() if not. * @@ -3918,12 +3913,10 @@ static int epoll_wait_usec( * https://github.com/systemd/systemd/issues/19052. */ if (!epoll_pwait2_absent && timeout != USEC_INFINITY) { - struct timespec ts; - r = epoll_pwait2(fd, events, maxevents, - timespec_store(&ts, timeout), + TIMESPEC_STORE(timeout), NULL); if (r >= 0) return r; @@ -4324,12 +4317,6 @@ _public_ int sd_event_now(sd_event *e, clockid_t clock, uint64_t *usec) { if (!TRIPLE_TIMESTAMP_HAS_CLOCK(clock)) return -EOPNOTSUPP; - /* Generate a clean error in case CLOCK_BOOTTIME is not available. Note that don't use clock_supported() here, - * for a reason: there are systems where CLOCK_BOOTTIME is supported, but CLOCK_BOOTTIME_ALARM is not, but for - * the purpose of getting the time this doesn't matter. */ - if (IN_SET(clock, CLOCK_BOOTTIME, CLOCK_BOOTTIME_ALARM) && !clock_boottime_supported()) - return -EOPNOTSUPP; - if (!triple_timestamp_is_set(&e->timestamp)) { /* Implicitly fall back to now() if we never ran before and thus have no cached time. */ *usec = now(clock); @@ -4469,6 +4456,7 @@ _public_ int sd_event_source_get_floating(sd_event_source *s) { return s->floating; } +#endif /* NM_IGNORED */ _public_ int sd_event_source_set_floating(sd_event_source *s, int b) { assert_return(s, -EINVAL); @@ -4492,6 +4480,7 @@ _public_ int sd_event_source_set_floating(sd_event_source *s, int b) { return 1; } +#if 0 /* NM_IGNORED */ _public_ int sd_event_source_get_exit_on_failure(sd_event_source *s) { assert_return(s, -EINVAL); assert_return(s->type != SOURCE_EXIT, -EDOM); diff --git a/src/libnm-systemd-core/src/libsystemd/sd-id128/id128-util.c b/src/libnm-systemd-core/src/libsystemd/sd-id128/id128-util.c index 9ec2abc8..f1a3a42e 100644 --- a/src/libnm-systemd-core/src/libsystemd/sd-id128/id128-util.c +++ b/src/libnm-systemd-core/src/libsystemd/sd-id128/id128-util.c @@ -15,29 +15,6 @@ #include "sync-util.h" #if 0 /* NM_IGNORED */ -char *id128_to_uuid_string(sd_id128_t id, char s[static ID128_UUID_STRING_MAX]) { - unsigned n, k = 0; - - assert(s); - - /* Similar to sd_id128_to_string() but formats the result as UUID instead of plain hex chars */ - - for (n = 0; n < 16; n++) { - - if (IN_SET(n, 4, 6, 8, 10)) - s[k++] = '-'; - - s[k++] = hexchar(id.bytes[n] >> 4); - s[k++] = hexchar(id.bytes[n] & 0xF); - } - - assert(k == 36); - - s[k] = 0; - - return s; -} - bool id128_is_valid(const char *s) { size_t i, l; @@ -158,13 +135,13 @@ int id128_write_fd(int fd, Id128Format f, sd_id128_t id, bool do_sync) { assert(f < _ID128_FORMAT_MAX); if (f != ID128_UUID) { - sd_id128_to_string(id, buffer); - buffer[32] = '\n'; - sz = 33; + assert_se(sd_id128_to_string(id, buffer)); + buffer[SD_ID128_STRING_MAX - 1] = '\n'; + sz = SD_ID128_STRING_MAX; } else { - id128_to_uuid_string(id, buffer); - buffer[36] = '\n'; - sz = 37; + assert_se(sd_id128_to_uuid_string(id, buffer)); + buffer[SD_ID128_UUID_STRING_MAX - 1] = '\n'; + sz = SD_ID128_UUID_STRING_MAX; } r = loop_write(fd, buffer, sz, false); @@ -234,4 +211,20 @@ int id128_get_product(sd_id128_t *ret) { *ret = uuid; return 0; } + +int id128_equal_string(const char *s, sd_id128_t id) { + sd_id128_t parsed; + int r; + + if (!s) + return false; + + /* Checks if the specified string matches a valid string representation of the specified 128 bit ID/uuid */ + + r = sd_id128_from_string(s, &parsed); + if (r < 0) + return r; + + return sd_id128_equal(parsed, id); +} #endif /* NM_IGNORED */ diff --git a/src/libnm-systemd-core/src/libsystemd/sd-id128/id128-util.h b/src/libnm-systemd-core/src/libsystemd/sd-id128/id128-util.h index b7327a1f..65a278c8 100644 --- a/src/libnm-systemd-core/src/libsystemd/sd-id128/id128-util.h +++ b/src/libnm-systemd-core/src/libsystemd/sd-id128/id128-util.h @@ -8,12 +8,6 @@ #include "hash-funcs.h" #include "macro.h" -#define ID128_UUID_STRING_MAX 37 - -char *id128_to_uuid_string(sd_id128_t id, char s[static ID128_UUID_STRING_MAX]); - -#define ID128_TO_UUID_STRING(id) id128_to_uuid_string((id), (char[ID128_UUID_STRING_MAX]) {}) - bool id128_is_valid(const char *s) _pure_; typedef enum Id128Format { @@ -40,3 +34,5 @@ extern const struct hash_ops id128_hash_ops; sd_id128_t id128_make_v4_uuid(sd_id128_t id); int id128_get_product(sd_id128_t *ret); + +int id128_equal_string(const char *s, sd_id128_t id); diff --git a/src/libnm-systemd-core/src/libsystemd/sd-id128/sd-id128.c b/src/libnm-systemd-core/src/libsystemd/sd-id128/sd-id128.c index c3ed3bbb..8e47e26e 100644 --- a/src/libnm-systemd-core/src/libsystemd/sd-id128/sd-id128.c +++ b/src/libnm-systemd-core/src/libsystemd/sd-id128/sd-id128.c @@ -22,16 +22,36 @@ #if 0 /* NM_IGNORED */ _public_ char *sd_id128_to_string(sd_id128_t id, char s[_SD_ARRAY_STATIC SD_ID128_STRING_MAX]) { - unsigned n; - assert_return(s, NULL); - for (n = 0; n < 16; n++) { + for (size_t n = 0; n < 16; n++) { s[n*2] = hexchar(id.bytes[n] >> 4); s[n*2+1] = hexchar(id.bytes[n] & 0xF); } - s[32] = 0; + s[SD_ID128_STRING_MAX-1] = 0; + + return s; +} + +_public_ char *sd_id128_to_uuid_string(sd_id128_t id, char s[_SD_ARRAY_STATIC SD_ID128_UUID_STRING_MAX]) { + size_t k = 0; + + assert_return(s, NULL); + + /* Similar to sd_id128_to_string() but formats the result as UUID instead of plain hex chars */ + + for (size_t n = 0; n < 16; n++) { + + if (IN_SET(n, 4, 6, 8, 10)) + s[k++] = '-'; + + s[k++] = hexchar(id.bytes[n] >> 4); + s[k++] = hexchar(id.bytes[n] & 0xF); + } + + assert(k == SD_ID128_UUID_STRING_MAX - 1); + s[k] = 0; return s; } @@ -261,9 +281,7 @@ _public_ int sd_id128_randomize(sd_id128_t *ret) { assert_return(ret, -EINVAL); - /* We allow usage if x86-64 RDRAND here. It might not be trusted enough for keeping secrets, but it should be - * fine for UUIDS. */ - r = genuine_random_bytes(&t, sizeof t, RANDOM_ALLOW_RDRAND); + r = genuine_random_bytes(&t, sizeof(t), 0); if (r < 0) return r; diff --git a/src/libnm-systemd-core/src/systemd/sd-dhcp-client.h b/src/libnm-systemd-core/src/systemd/sd-dhcp-client.h index 4af4b45f..834f80b4 100644 --- a/src/libnm-systemd-core/src/systemd/sd-dhcp-client.h +++ b/src/libnm-systemd-core/src/systemd/sd-dhcp-client.h @@ -44,67 +44,175 @@ enum { * The client may want to start acquiring link-local addresses. */ }; +/* https://www.iana.org/assignments/bootp-dhcp-parameters/bootp-dhcp-parameters.xhtml#options */ enum { - SD_DHCP_OPTION_PAD = 0, - SD_DHCP_OPTION_SUBNET_MASK = 1, - SD_DHCP_OPTION_TIME_OFFSET = 2, - SD_DHCP_OPTION_ROUTER = 3, - SD_DHCP_OPTION_DOMAIN_NAME_SERVER = 6, - SD_DHCP_OPTION_LPR_SERVER = 9, - SD_DHCP_OPTION_HOST_NAME = 12, - SD_DHCP_OPTION_BOOT_FILE_SIZE = 13, - SD_DHCP_OPTION_DOMAIN_NAME = 15, - SD_DHCP_OPTION_ROOT_PATH = 17, - SD_DHCP_OPTION_ENABLE_IP_FORWARDING = 19, - SD_DHCP_OPTION_ENABLE_IP_FORWARDING_NL = 20, - SD_DHCP_OPTION_POLICY_FILTER = 21, - SD_DHCP_OPTION_INTERFACE_MDR = 22, - SD_DHCP_OPTION_INTERFACE_TTL = 23, - SD_DHCP_OPTION_INTERFACE_MTU_AGING_TIMEOUT = 24, - SD_DHCP_OPTION_INTERFACE_MTU = 26, - SD_DHCP_OPTION_BROADCAST = 28, - /* Windows 10 option to send when Anonymize=true */ - SD_DHCP_OPTION_ROUTER_DISCOVER = 31, - SD_DHCP_OPTION_STATIC_ROUTE = 33, - SD_DHCP_OPTION_NTP_SERVER = 42, - SD_DHCP_OPTION_VENDOR_SPECIFIC = 43, - /* Windows 10 option to send when Anonymize=true */ - SD_DHCP_OPTION_NETBIOS_NAMESERVER = 44, - /* Windows 10 option to send when Anonymize=true */ - SD_DHCP_OPTION_NETBIOS_NODETYPE = 46, - /* Windows 10 option to send when Anonymize=true */ - SD_DHCP_OPTION_NETBIOS_SCOPE = 47, - SD_DHCP_OPTION_REQUESTED_IP_ADDRESS = 50, - SD_DHCP_OPTION_IP_ADDRESS_LEASE_TIME = 51, - SD_DHCP_OPTION_OVERLOAD = 52, - SD_DHCP_OPTION_MESSAGE_TYPE = 53, - SD_DHCP_OPTION_SERVER_IDENTIFIER = 54, - SD_DHCP_OPTION_PARAMETER_REQUEST_LIST = 55, - SD_DHCP_OPTION_ERROR_MESSAGE = 56, - SD_DHCP_OPTION_MAXIMUM_MESSAGE_SIZE = 57, - SD_DHCP_OPTION_RENEWAL_T1_TIME = 58, - SD_DHCP_OPTION_REBINDING_T2_TIME = 59, - SD_DHCP_OPTION_VENDOR_CLASS_IDENTIFIER = 60, - SD_DHCP_OPTION_CLIENT_IDENTIFIER = 61, - SD_DHCP_OPTION_SMTP_SERVER = 69, - SD_DHCP_OPTION_POP3_SERVER = 70, - SD_DHCP_OPTION_USER_CLASS = 77, - SD_DHCP_OPTION_FQDN = 81, - SD_DHCP_OPTION_RELAY_AGENT_INFORMATION = 82, - SD_DHCP_OPTION_NEW_POSIX_TIMEZONE = 100, - SD_DHCP_OPTION_NEW_TZDB_TIMEZONE = 101, - SD_DHCP_OPTION_DOMAIN_SEARCH_LIST = 119, - SD_DHCP_OPTION_SIP_SERVER = 120, - SD_DHCP_OPTION_CLASSLESS_STATIC_ROUTE = 121, - SD_DHCP_OPTION_MUD_URL = 161, - SD_DHCP_OPTION_6RD = 212, + SD_DHCP_OPTION_PAD = 0, /* [RFC2132] */ + SD_DHCP_OPTION_SUBNET_MASK = 1, /* [RFC2132] */ + SD_DHCP_OPTION_TIME_OFFSET = 2, /* [RFC2132], deprecated by 100 and 101 */ + SD_DHCP_OPTION_ROUTER = 3, /* [RFC2132] */ + SD_DHCP_OPTION_TIME_SERVER = 4, /* [RFC2132] */ + SD_DHCP_OPTION_NAME_SERVER = 5, /* [RFC2132] */ + SD_DHCP_OPTION_DOMAIN_NAME_SERVER = 6, /* [RFC2132] */ + SD_DHCP_OPTION_LOG_SERVER = 7, /* [RFC2132] */ + SD_DHCP_OPTION_QUOTES_SERVER = 8, /* [RFC2132] */ + SD_DHCP_OPTION_LPR_SERVER = 9, /* [RFC2132] */ + SD_DHCP_OPTION_IMPRESS_SERVER = 10, /* [RFC2132] */ + SD_DHCP_OPTION_RLP_SERVER = 11, /* [RFC2132] */ + SD_DHCP_OPTION_HOST_NAME = 12, /* [RFC2132] */ + SD_DHCP_OPTION_BOOT_FILE_SIZE = 13, /* [RFC2132] */ + SD_DHCP_OPTION_MERIT_DUMP_FILE = 14, /* [RFC2132] */ + SD_DHCP_OPTION_DOMAIN_NAME = 15, /* [RFC2132] */ + SD_DHCP_OPTION_SWAP_SERVER = 16, /* [RFC2132] */ + SD_DHCP_OPTION_ROOT_PATH = 17, /* [RFC2132] */ + SD_DHCP_OPTION_EXTENSION_FILE = 18, /* [RFC2132] */ + SD_DHCP_OPTION_FORWARD = 19, /* [RFC2132] */ + SD_DHCP_OPTION_SOURCE_ROUTE = 20, /* [RFC2132] */ + SD_DHCP_OPTION_POLICY_FILTER = 21, /* [RFC2132] */ + SD_DHCP_OPTION_MAX_DATAGRAM_ASSEMBLY = 22, /* [RFC2132] */ + SD_DHCP_OPTION_DEFAULT_IP_TTL = 23, /* [RFC2132] */ + SD_DHCP_OPTION_MTU_TIMEOUT = 24, /* [RFC2132] */ + SD_DHCP_OPTION_MTU_PLATEAU = 25, /* [RFC2132] */ + SD_DHCP_OPTION_MTU_INTERFACE = 26, /* [RFC2132] */ + SD_DHCP_OPTION_MTU_SUBNET = 27, /* [RFC2132] */ + SD_DHCP_OPTION_BROADCAST = 28, /* [RFC2132] */ + SD_DHCP_OPTION_MASK_DISCOVERY = 29, /* [RFC2132] */ + SD_DHCP_OPTION_MASK_SUPPLIER = 30, /* [RFC2132] */ + SD_DHCP_OPTION_ROUTER_DISCOVERY = 31, /* [RFC2132] */ + SD_DHCP_OPTION_ROUTER_REQUEST = 32, /* [RFC2132] */ + SD_DHCP_OPTION_STATIC_ROUTE = 33, /* [RFC2132] */ + SD_DHCP_OPTION_TRAILERS = 34, /* [RFC2132] */ + SD_DHCP_OPTION_ARP_TIMEOUT = 35, /* [RFC2132] */ + SD_DHCP_OPTION_ETHERNET = 36, /* [RFC2132] */ + SD_DHCP_OPTION_DEFAULT_TCP_TTL = 37, /* [RFC2132] */ + SD_DHCP_OPTION_KEEPALIVE_TIME = 38, /* [RFC2132] */ + SD_DHCP_OPTION_KEEPALIVE_DATA = 39, /* [RFC2132] */ + SD_DHCP_OPTION_NIS_DOMAIN = 40, /* [RFC2132] */ + SD_DHCP_OPTION_NIS_SERVER = 41, /* [RFC2132] */ + SD_DHCP_OPTION_NTP_SERVER = 42, /* [RFC2132] */ + SD_DHCP_OPTION_VENDOR_SPECIFIC = 43, /* [RFC2132] */ + SD_DHCP_OPTION_NETBIOS_NAME_SERVER = 44, /* [RFC2132] */ + SD_DHCP_OPTION_NETBIOS_DIST_SERVER = 45, /* [RFC2132] */ + SD_DHCP_OPTION_NETBIOS_NODE_TYPE = 46, /* [RFC2132] */ + SD_DHCP_OPTION_NETBIOS_SCOPE = 47, /* [RFC2132] */ + SD_DHCP_OPTION_X_WINDOW_FONT = 48, /* [RFC2132] */ + SD_DHCP_OPTION_X_WINDOW_MANAGER = 49, /* [RFC2132] */ + SD_DHCP_OPTION_REQUESTED_IP_ADDRESS = 50, /* [RFC2132] */ + SD_DHCP_OPTION_IP_ADDRESS_LEASE_TIME = 51, /* [RFC2132] */ + SD_DHCP_OPTION_OVERLOAD = 52, /* [RFC2132] */ + SD_DHCP_OPTION_MESSAGE_TYPE = 53, /* [RFC2132] */ + SD_DHCP_OPTION_SERVER_IDENTIFIER = 54, /* [RFC2132] */ + SD_DHCP_OPTION_PARAMETER_REQUEST_LIST = 55, /* [RFC2132] */ + SD_DHCP_OPTION_ERROR_MESSAGE = 56, /* [RFC2132] */ + SD_DHCP_OPTION_MAXIMUM_MESSAGE_SIZE = 57, /* [RFC2132] */ + SD_DHCP_OPTION_RENEWAL_TIME = 58, /* [RFC2132] */ + SD_DHCP_OPTION_REBINDING_TIME = 59, /* [RFC2132] */ + SD_DHCP_OPTION_VENDOR_CLASS_IDENTIFIER = 60, /* [RFC2132] */ + SD_DHCP_OPTION_CLIENT_IDENTIFIER = 61, /* [RFC2132] */ + SD_DHCP_OPTION_NETWARE_IP_DOMAIN = 62, /* [RFC2242] */ + SD_DHCP_OPTION_NETWARE_IP_OPTION = 63, /* [RFC2242] */ + SD_DHCP_OPTION_NIS_DOMAIN_NAME = 64, /* [RFC2132] */ + SD_DHCP_OPTION_NIS_SERVER_ADDR = 65, /* [RFC2132] */ + SD_DHCP_OPTION_BOOT_SERVER_NAME = 66, /* [RFC2132] */ + SD_DHCP_OPTION_BOOT_FILENAME = 67, /* [RFC2132] */ + SD_DHCP_OPTION_HOME_AGENT_ADDRESSES = 68, /* [RFC2132] */ + SD_DHCP_OPTION_SMTP_SERVER = 69, /* [RFC2132] */ + SD_DHCP_OPTION_POP3_SERVER = 70, /* [RFC2132] */ + SD_DHCP_OPTION_NNTP_SERVER = 71, /* [RFC2132] */ + SD_DHCP_OPTION_WWW_SERVER = 72, /* [RFC2132] */ + SD_DHCP_OPTION_FINGER_SERVER = 73, /* [RFC2132] */ + SD_DHCP_OPTION_IRC_SERVER = 74, /* [RFC2132] */ + SD_DHCP_OPTION_STREETTALK_SERVER = 75, /* [RFC2132] */ + SD_DHCP_OPTION_STDA_SERVER = 76, /* [RFC2132] */ + SD_DHCP_OPTION_USER_CLASS = 77, /* [RFC3004] */ + SD_DHCP_OPTION_DIRECTORY_AGENT = 78, /* [RFC2610] */ + SD_DHCP_OPTION_SERVICE_SCOPE = 79, /* [RFC2610] */ + SD_DHCP_OPTION_RAPID_COMMIT = 80, /* [RFC4039] */ + SD_DHCP_OPTION_FQDN = 81, /* [RFC4702] */ + SD_DHCP_OPTION_RELAY_AGENT_INFORMATION = 82, /* [RFC3046] */ + SD_DHCP_OPTION_ISNS = 83, /* [RFC4174] */ + /* option code 84 is unassigned [RFC3679] */ + SD_DHCP_OPTION_NDS_SERVER = 85, /* [RFC2241] */ + SD_DHCP_OPTION_NDS_TREE_NAME = 86, /* [RFC2241] */ + SD_DHCP_OPTION_NDS_CONTEXT = 87, /* [RFC2241] */ + SD_DHCP_OPTION_BCMCS_CONTROLLER_DOMAIN_NAM = 88, /* [RFC4280] */ + SD_DHCP_OPTION_BCMCS_CONTROLLER_ADDRESS = 89, /* [RFC4280] */ + SD_DHCP_OPTION_AUTHENTICATION = 90, /* [RFC3118] */ + SD_DHCP_OPTION_CLIENT_LAST_TRANSACTION_TIME = 91, /* [RFC4388] */ + SD_DHCP_OPTION_ASSOCIATED_IP = 92, /* [RFC4388] */ + SD_DHCP_OPTION_CLIENT_SYSTEM = 93, /* [RFC4578] */ + SD_DHCP_OPTION_CLIENT_NDI = 94, /* [RFC4578] */ + SD_DHCP_OPTION_LDAP = 95, /* [RFC3679] */ + /* option code 96 is unassigned [RFC3679] */ + SD_DHCP_OPTION_UUID = 97, /* [RFC4578] */ + SD_DHCP_OPTION_USER_AUTHENTICATION = 98, /* [RFC2485] */ + SD_DHCP_OPTION_GEOCONF_CIVIC = 99, /* [RFC4776] */ + SD_DHCP_OPTION_POSIX_TIMEZONE = 100, /* [RFC4833] */ + SD_DHCP_OPTION_TZDB_TIMEZONE = 101, /* [RFC4833] */ + /* option codes 102-107 are unassigned [RFC3679] */ + SD_DHCP_OPTION_IPV6_ONLY_PREFERRED = 108, /* [RFC8925] */ + SD_DHCP_OPTION_DHCP4O6_SOURCE_ADDRESS = 109, /* [RFC8539] */ + /* option codes 110-111 are unassigned [RFC3679] */ + SD_DHCP_OPTION_NETINFO_ADDRESS = 112, /* [RFC3679] */ + SD_DHCP_OPTION_NETINFO_TAG = 113, /* [RFC3679] */ + SD_DHCP_OPTION_DHCP_CAPTIVE_PORTAL = 114, /* [RFC8910] */ + /* option code 115 is unassigned [RFC3679] */ + SD_DHCP_OPTION_AUTO_CONFIG = 116, /* [RFC2563] */ + SD_DHCP_OPTION_NAME_SERVICE_SEARCH = 117, /* [RFC2937] */ + SD_DHCP_OPTION_SUBNET_SELECTION = 118, /* [RFC3011] */ + SD_DHCP_OPTION_DOMAIN_SEARCH = 119, /* [RFC3397] */ + SD_DHCP_OPTION_SIP_SERVER = 120, /* [RFC3361] */ + SD_DHCP_OPTION_CLASSLESS_STATIC_ROUTE = 121, /* [RFC3442] */ + SD_DHCP_OPTION_CABLELABS_CLIENT_CONFIGURATION = 122, /* [RFC3495] */ + SD_DHCP_OPTION_GEOCONF = 123, /* [RFC6225] */ + SD_DHCP_OPTION_VENDOR_CLASS = 124, /* [RFC3925] */ + SD_DHCP_OPTION_VENDOR_SPECIFIC_INFORMATION = 125, /* [RFC3925] */ + /* option codes 126-127 are unassigned [RFC3679] */ + /* option codes 128-135 are assigned to use by PXE, but they are vendor specific [RFC4578] */ + SD_DHCP_OPTION_PANA_AGENT = 136, /* [RFC5192] */ + SD_DHCP_OPTION_LOST_SERVER_FQDN = 137, /* [RFC5223] */ + SD_DHCP_OPTION_CAPWAP_AC_ADDRESS = 138, /* [RFC5417] */ + SD_DHCP_OPTION_MOS_ADDRESS = 139, /* [RFC5678] */ + SD_DHCP_OPTION_MOS_FQDN = 140, /* [RFC5678] */ + SD_DHCP_OPTION_SIP_SERVICE_DOMAINS = 141, /* [RFC6011] */ + SD_DHCP_OPTION_ANDSF_ADDRESS = 142, /* [RFC6153] */ + SD_DHCP_OPTION_SZTP_REDIRECT = 143, /* [RFC8572] */ + SD_DHCP_OPTION_GEOLOC = 144, /* [RFC6225] */ + SD_DHCP_OPTION_FORCERENEW_NONCE_CAPABLE = 145, /* [RFC6704] */ + SD_DHCP_OPTION_RDNSS_SELECTION = 146, /* [RFC6731] */ + SD_DHCP_OPTION_DOTS_RI = 147, /* [RFC8973] */ + SD_DHCP_OPTION_DOTS_ADDRESS = 148, /* [RFC8973] */ + /* option code 149 is unassigned [RFC3942] */ + SD_DHCP_OPTION_TFTP_SERVER_ADDRESS = 150, /* [RFC5859] */ + SD_DHCP_OPTION_STATUS_CODE = 151, /* [RFC6926] */ + SD_DHCP_OPTION_BASE_TIME = 152, /* [RFC6926] */ + SD_DHCP_OPTION_START_TIME_OF_STATE = 153, /* [RFC6926] */ + SD_DHCP_OPTION_QUERY_START_TIME = 154, /* [RFC6926] */ + SD_DHCP_OPTION_QUERY_END_TIME = 155, /* [RFC6926] */ + SD_DHCP_OPTION_DHCP_STATE = 156, /* [RFC6926] */ + SD_DHCP_OPTION_DATA_SOURCE = 157, /* [RFC6926] */ + SD_DHCP_OPTION_PCP_SERVER = 158, /* [RFC7291] */ + SD_DHCP_OPTION_PORT_PARAMS = 159, /* [RFC7618] */ + /* option code 160 is unassigned [RFC7710][RFC8910] */ + SD_DHCP_OPTION_MUD_URL = 161, /* [RFC8520] */ + /* option codes 162-174 are unassigned [RFC3942] */ + /* option codes 175-177 are temporary assigned. */ + /* option codes 178-207 are unassigned [RFC3942] */ + SD_DHCP_OPTION_PXELINUX_MAGIC = 208, /* [RFC5071] Deprecated */ + SD_DHCP_OPTION_CONFIGURATION_FILE = 209, /* [RFC5071] */ + SD_DHCP_OPTION_PATH_PREFIX = 210, /* [RFC5071] */ + SD_DHCP_OPTION_REBOOT_TIME = 211, /* [RFC5071] */ + SD_DHCP_OPTION_6RD = 212, /* [RFC5969] */ + SD_DHCP_OPTION_ACCESS_DOMAIN = 213, /* [RFC5986] */ + /* option codes 214-219 are unassigned */ + SD_DHCP_OPTION_SUBNET_ALLOCATION = 220, /* [RFC6656] */ + SD_DHCP_OPTION_VIRTUAL_SUBNET_SELECTION = 221, /* [RFC6607] */ + /* option codes 222-223 are unassigned [RFC3942] */ + /* option codes 224-254 are reserved for private use */ SD_DHCP_OPTION_PRIVATE_BASE = 224, - /* Windows 10 option to send when Anonymize=true */ - SD_DHCP_OPTION_PRIVATE_CLASSLESS_STATIC_ROUTE = 249, - /* Windows 10 option to send when Anonymize=true */ - SD_DHCP_OPTION_PRIVATE_PROXY_AUTODISCOVERY = 252, + SD_DHCP_OPTION_PRIVATE_CLASSLESS_STATIC_ROUTE = 249, /* [RFC7844] */ + SD_DHCP_OPTION_PRIVATE_PROXY_AUTODISCOVERY = 252, /* [RFC7844] */ SD_DHCP_OPTION_PRIVATE_LAST = 254, - SD_DHCP_OPTION_END = 255, + SD_DHCP_OPTION_END = 255, /* [RFC2132] */ }; /* Suboptions for SD_DHCP_OPTION_RELAY_AGENT_INFORMATION option */ diff --git a/src/libnm-systemd-core/src/systemd/sd-dhcp-lease.h b/src/libnm-systemd-core/src/systemd/sd-dhcp-lease.h index 478bbfd7..578ac6d4 100644 --- a/src/libnm-systemd-core/src/systemd/sd-dhcp-lease.h +++ b/src/libnm-systemd-core/src/systemd/sd-dhcp-lease.h @@ -67,7 +67,8 @@ int sd_dhcp_lease_get_domainname(sd_dhcp_lease *lease, const char **domainname); int sd_dhcp_lease_get_search_domains(sd_dhcp_lease *lease, char ***domains); int sd_dhcp_lease_get_hostname(sd_dhcp_lease *lease, const char **hostname); int sd_dhcp_lease_get_root_path(sd_dhcp_lease *lease, const char **root_path); -int sd_dhcp_lease_get_routes(sd_dhcp_lease *lease, sd_dhcp_route ***routes); +int sd_dhcp_lease_get_static_routes(sd_dhcp_lease *lease, sd_dhcp_route ***ret); +int sd_dhcp_lease_get_classless_routes(sd_dhcp_lease *lease, sd_dhcp_route ***ret); int sd_dhcp_lease_get_vendor_specific(sd_dhcp_lease *lease, const void **data, size_t *data_len); int sd_dhcp_lease_get_client_id(sd_dhcp_lease *lease, const void **client_id, size_t *client_id_len); int sd_dhcp_lease_get_timezone(sd_dhcp_lease *lease, const char **timezone); @@ -82,7 +83,6 @@ int sd_dhcp_lease_get_6rd( int sd_dhcp_route_get_destination(sd_dhcp_route *route, struct in_addr *destination); int sd_dhcp_route_get_destination_prefix_length(sd_dhcp_route *route, uint8_t *length); int sd_dhcp_route_get_gateway(sd_dhcp_route *route, struct in_addr *gateway); -int sd_dhcp_route_get_option(sd_dhcp_route *route); _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_dhcp_lease, sd_dhcp_lease_unref); diff --git a/src/libnm-systemd-core/src/systemd/sd-dhcp6-client.h b/src/libnm-systemd-core/src/systemd/sd-dhcp6-client.h index 0e23c84e..d89b7d1c 100644 --- a/src/libnm-systemd-core/src/systemd/sd-dhcp6-client.h +++ b/src/libnm-systemd-core/src/systemd/sd-dhcp6-client.h @@ -81,8 +81,8 @@ enum { SD_DHCP6_OPTION_SUBSCRIBER_ID = 38, /* RFC 4580 */ SD_DHCP6_OPTION_CLIENT_FQDN = 39, /* RFC 4704 */ SD_DHCP6_OPTION_PANA_AGENT = 40, /* RFC 5192 */ - SD_DHCP6_OPTION_NEW_POSIX_TIMEZONE = 41, /* RFC 4833 */ - SD_DHCP6_OPTION_NEW_TZDB_TIMEZONE = 42, /* RFC 4833 */ + SD_DHCP6_OPTION_POSIX_TIMEZONE = 41, /* RFC 4833 */ + SD_DHCP6_OPTION_TZDB_TIMEZONE = 42, /* RFC 4833 */ SD_DHCP6_OPTION_ERO = 43, /* RFC 4994 */ SD_DHCP6_OPTION_LQ_QUERY = 44, /* RFC 5007 */ SD_DHCP6_OPTION_CLIENT_DATA = 45, /* RFC 5007 */ @@ -251,7 +251,7 @@ int sd_dhcp6_client_set_request_vendor_class( int sd_dhcp6_client_set_prefix_delegation_hint( sd_dhcp6_client *client, uint8_t prefixlen, - const struct in6_addr *pd_address); + const struct in6_addr *pd_prefix); int sd_dhcp6_client_get_prefix_delegation(sd_dhcp6_client *client, int *delegation); int sd_dhcp6_client_set_prefix_delegation(sd_dhcp6_client *client, @@ -260,8 +260,6 @@ int sd_dhcp6_client_get_address_request(sd_dhcp6_client *client, int *request); int sd_dhcp6_client_set_address_request(sd_dhcp6_client *client, int request); -int sd_dhcp6_client_set_transaction_id(sd_dhcp6_client *client, - uint32_t transaction_id); int sd_dhcp6_client_add_vendor_option(sd_dhcp6_client *client, sd_dhcp6_option *v); diff --git a/src/libnm-systemd-core/src/systemd/sd-id128.h b/src/libnm-systemd-core/src/systemd/sd-id128.h index e64f3200..f7d3244b 100644 --- a/src/libnm-systemd-core/src/systemd/sd-id128.h +++ b/src/libnm-systemd-core/src/systemd/sd-id128.h @@ -35,11 +35,14 @@ union sd_id128 { }; #define SD_ID128_STRING_MAX 33U +#define SD_ID128_UUID_STRING_MAX 37U char *sd_id128_to_string(sd_id128_t id, char s[_SD_ARRAY_STATIC SD_ID128_STRING_MAX]); +char *sd_id128_to_uuid_string(sd_id128_t id, char s[_SD_ARRAY_STATIC SD_ID128_UUID_STRING_MAX]); int sd_id128_from_string(const char *s, sd_id128_t *ret); #define SD_ID128_TO_STRING(id) sd_id128_to_string((id), (char[SD_ID128_STRING_MAX]) {}) +#define SD_ID128_TO_UUID_STRING(id) sd_id128_to_uuid_string((id), (char[SD_ID128_UUID_STRING_MAX]) {}) int sd_id128_randomize(sd_id128_t *ret); |