diff options
Diffstat (limited to 'src/systemd/src/libsystemd-network/network-internal.c')
| -rw-r--r-- | src/systemd/src/libsystemd-network/network-internal.c | 890 |
1 files changed, 0 insertions, 890 deletions
diff --git a/src/systemd/src/libsystemd-network/network-internal.c b/src/systemd/src/libsystemd-network/network-internal.c deleted file mode 100644 index 6a7382ac..00000000 --- a/src/systemd/src/libsystemd-network/network-internal.c +++ /dev/null @@ -1,890 +0,0 @@ -/* SPDX-License-Identifier: LGPL-2.1+ */ - -#include "nm-sd-adapt-core.h" - -#include <arpa/inet.h> -#include <linux/if.h> -#include <netinet/ether.h> - -#include "sd-id128.h" -#include "sd-ndisc.h" - -#include "alloc-util.h" -#include "arphrd-list.h" -#include "condition.h" -#include "conf-parser.h" -#include "device-util.h" -#include "dhcp-lease-internal.h" -#include "env-util.h" -#include "ether-addr-util.h" -#include "hexdecoct.h" -#include "log.h" -#include "network-internal.h" -#include "parse-util.h" -#include "siphash24.h" -#include "socket-util.h" -#include "string-table.h" -#include "string-util.h" -#include "strv.h" -#include "utf8.h" -#include "util.h" - -#if 0 /* NM_IGNORED */ -const char *net_get_name_persistent(sd_device *device) { - const char *name, *field; - - assert(device); - - /* fetch some persistent data unique (on this machine) to this device */ - FOREACH_STRING(field, "ID_NET_NAME_ONBOARD", "ID_NET_NAME_SLOT", "ID_NET_NAME_PATH", "ID_NET_NAME_MAC") - if (sd_device_get_property_value(device, field, &name) >= 0) - return name; - - return NULL; -} - -#define HASH_KEY SD_ID128_MAKE(d3,1e,48,fa,90,fe,4b,4c,9d,af,d5,d7,a1,b1,2e,8a) - -int net_get_unique_predictable_data(sd_device *device, bool use_sysname, uint64_t *result) { - size_t l, sz = 0; - const char *name; - int r; - uint8_t *v; - - assert(device); - - /* net_get_name_persistent() will return one of the device names based on stable information about - * the device. If this is not available, we fall back to using the actual device name. */ - name = net_get_name_persistent(device); - if (!name && use_sysname) - (void) sd_device_get_sysname(device, &name); - if (!name) - return log_device_debug_errno(device, SYNTHETIC_ERRNO(ENODATA), - "No stable identifying information found"); - - log_device_debug(device, "Using \"%s\" as stable identifying information", name); - l = strlen(name); - sz = sizeof(sd_id128_t) + l; - v = newa(uint8_t, sz); - - /* Fetch some persistent data unique to this machine */ - r = sd_id128_get_machine((sd_id128_t*) v); - if (r < 0) - return r; - memcpy(v + sizeof(sd_id128_t), name, l); - - /* Let's hash the machine ID plus the device name. We use - * a fixed, but originally randomly created hash key here. */ - *result = htole64(siphash24(v, sz, HASH_KEY.bytes)); - return 0; -} - -static bool net_condition_test_strv(char * const *patterns, const char *string) { - char * const *p; - bool match = false, has_positive_rule = false; - - if (strv_isempty(patterns)) - return true; - - STRV_FOREACH(p, patterns) { - const char *q = *p; - bool invert; - - invert = *q == '!'; - q += invert; - - if (!invert) - has_positive_rule = true; - - if (string && fnmatch(q, string, 0) == 0) { - if (invert) - return false; - else - match = true; - } - } - - return has_positive_rule ? match : true; -} - -static bool net_condition_test_ifname(char * const *patterns, const char *ifname, char * const *alternative_names) { - if (net_condition_test_strv(patterns, ifname)) - return true; - - char * const *p; - STRV_FOREACH(p, alternative_names) - if (net_condition_test_strv(patterns, *p)) - return true; - - return false; -} - -static int net_condition_test_property(char * const *match_property, sd_device *device) { - char * const *p; - - if (strv_isempty(match_property)) - return true; - - STRV_FOREACH(p, match_property) { - _cleanup_free_ char *key = NULL; - const char *val, *dev_val; - bool invert, v; - - invert = **p == '!'; - - val = strchr(*p + invert, '='); - if (!val) - return -EINVAL; - - key = strndup(*p + invert, val - *p - invert); - if (!key) - return -ENOMEM; - - val++; - - v = device && - sd_device_get_property_value(device, key, &dev_val) >= 0 && - fnmatch(val, dev_val, 0) == 0; - - if (invert ? v : !v) - return false; - } - - return true; -} - -static const char *const wifi_iftype_table[NL80211_IFTYPE_MAX+1] = { - [NL80211_IFTYPE_ADHOC] = "ad-hoc", - [NL80211_IFTYPE_STATION] = "station", - [NL80211_IFTYPE_AP] = "ap", - [NL80211_IFTYPE_AP_VLAN] = "ap-vlan", - [NL80211_IFTYPE_WDS] = "wds", - [NL80211_IFTYPE_MONITOR] = "monitor", - [NL80211_IFTYPE_MESH_POINT] = "mesh-point", - [NL80211_IFTYPE_P2P_CLIENT] = "p2p-client", - [NL80211_IFTYPE_P2P_GO] = "p2p-go", - [NL80211_IFTYPE_P2P_DEVICE] = "p2p-device", - [NL80211_IFTYPE_OCB] = "ocb", - [NL80211_IFTYPE_NAN] = "nan", -}; - -DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(wifi_iftype, enum nl80211_iftype); - -char *link_get_type_string(unsigned short iftype, sd_device *device) { - const char *t, *devtype; - char *p; - - if (device && - sd_device_get_devtype(device, &devtype) >= 0 && - !isempty(devtype)) - return strdup(devtype); - - t = arphrd_to_name(iftype); - if (!t) - return NULL; - - p = strdup(t); - if (!p) - return NULL; - - ascii_strlower(p); - return p; -} - -bool net_match_config(Set *match_mac, - Set *match_permanent_mac, - char * const *match_paths, - char * const *match_drivers, - char * const *match_iftypes, - char * const *match_names, - char * const *match_property, - char * const *match_wifi_iftype, - char * const *match_ssid, - Set *match_bssid, - sd_device *device, - const struct ether_addr *dev_mac, - const struct ether_addr *dev_permanent_mac, - const char *dev_driver, - unsigned short dev_iftype, - const char *dev_name, - char * const *alternative_names, - enum nl80211_iftype dev_wifi_iftype, - const char *dev_ssid, - const struct ether_addr *dev_bssid) { - - _cleanup_free_ char *dev_iftype_str; - const char *dev_path = NULL; - - dev_iftype_str = link_get_type_string(dev_iftype, device); - - if (device) { - const char *mac_str; - - (void) sd_device_get_property_value(device, "ID_PATH", &dev_path); - if (!dev_driver) - (void) sd_device_get_property_value(device, "ID_NET_DRIVER", &dev_driver); - if (!dev_name) - (void) sd_device_get_sysname(device, &dev_name); - if (!dev_mac && - sd_device_get_sysattr_value(device, "address", &mac_str) >= 0) - dev_mac = ether_aton(mac_str); - } - - if (match_mac && (!dev_mac || !set_contains(match_mac, dev_mac))) - return false; - - if (match_permanent_mac && - (!dev_permanent_mac || - ether_addr_is_null(dev_permanent_mac) || - !set_contains(match_permanent_mac, dev_permanent_mac))) - return false; - - if (!net_condition_test_strv(match_paths, dev_path)) - return false; - - if (!net_condition_test_strv(match_drivers, dev_driver)) - return false; - - if (!net_condition_test_strv(match_iftypes, dev_iftype_str)) - return false; - - if (!net_condition_test_ifname(match_names, dev_name, alternative_names)) - return false; - - if (!net_condition_test_property(match_property, device)) - return false; - - if (!net_condition_test_strv(match_wifi_iftype, wifi_iftype_to_string(dev_wifi_iftype))) - return false; - - if (!net_condition_test_strv(match_ssid, dev_ssid)) - return false; - - if (match_bssid && (!dev_bssid || !set_contains(match_bssid, dev_bssid))) - return false; - - return true; -} - -int config_parse_net_condition(const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - ConditionType cond = ltype; - Condition **list = data, *c; - bool negate; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (isempty(rvalue)) { - *list = condition_free_list_type(*list, cond); - return 0; - } - - negate = rvalue[0] == '!'; - if (negate) - rvalue++; - - c = condition_new(cond, rvalue, false, negate); - if (!c) - return log_oom(); - - /* Drop previous assignment. */ - *list = condition_free_list_type(*list, cond); - - LIST_PREPEND(conditions, *list, c); - return 0; -} - -int config_parse_match_strv( - const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - const char *p = rvalue; - char ***sv = data; - bool invert; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (isempty(rvalue)) { - *sv = strv_free(*sv); - return 0; - } - - invert = *p == '!'; - p += invert; - - for (;;) { - _cleanup_free_ char *word = NULL, *k = NULL; - - r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE|EXTRACT_RETAIN_ESCAPE); - if (r == 0) - return 0; - if (r == -ENOMEM) - return log_oom(); - if (r < 0) { - log_syntax(unit, LOG_ERR, filename, line, r, "Invalid syntax, ignoring: %s", rvalue); - return 0; - } - - if (invert) { - k = strjoin("!", word); - if (!k) - return log_oom(); - } else - k = TAKE_PTR(word); - - r = strv_consume(sv, TAKE_PTR(k)); - if (r < 0) - return log_oom(); - } -} - -int config_parse_match_ifnames( - const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - const char *p = rvalue; - char ***sv = data; - bool invert; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - invert = *p == '!'; - p += invert; - - for (;;) { - _cleanup_free_ char *word = NULL, *k = NULL; - - r = extract_first_word(&p, &word, NULL, 0); - if (r == 0) - return 0; - if (r == -ENOMEM) - return log_oom(); - if (r < 0) { - log_syntax(unit, LOG_ERR, filename, line, 0, - "Failed to parse interface name list: %s", rvalue); - return 0; - } - - if (!ifname_valid_full(word, ltype)) { - log_syntax(unit, LOG_ERR, filename, line, 0, - "Interface name is not valid or too long, ignoring assignment: %s", word); - continue; - } - - if (invert) { - k = strjoin("!", word); - if (!k) - return log_oom(); - } else - k = TAKE_PTR(word); - - r = strv_consume(sv, TAKE_PTR(k)); - if (r < 0) - return log_oom(); - } -} - -int config_parse_match_property( - const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - const char *p = rvalue; - char ***sv = data; - bool invert; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - invert = *p == '!'; - p += invert; - - for (;;) { - _cleanup_free_ char *word = NULL, *k = NULL; - - r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_UNQUOTE); - if (r == 0) - return 0; - if (r == -ENOMEM) - return log_oom(); - if (r < 0) { - log_syntax(unit, LOG_ERR, filename, line, 0, - "Invalid syntax, ignoring: %s", rvalue); - return 0; - } - - if (!env_assignment_is_valid(word)) { - log_syntax(unit, LOG_ERR, filename, line, 0, - "Invalid property or value, ignoring assignment: %s", word); - continue; - } - - if (invert) { - k = strjoin("!", word); - if (!k) - return log_oom(); - } else - k = TAKE_PTR(word); - - r = strv_consume(sv, TAKE_PTR(k)); - if (r < 0) - return log_oom(); - } -} - -int config_parse_ifalias(const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - char **s = data; - _cleanup_free_ char *n = NULL; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - n = strdup(rvalue); - if (!n) - return log_oom(); - - if (!ascii_is_valid(n) || strlen(n) >= IFALIASZ) { - log_syntax(unit, LOG_ERR, filename, line, 0, "Interface alias is not ASCII clean or is too long, ignoring assignment: %s", rvalue); - return 0; - } - - if (isempty(n)) - *s = mfree(*s); - else - free_and_replace(*s, n); - - return 0; -} - -int config_parse_hwaddr(const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - _cleanup_free_ struct ether_addr *n = NULL; - struct ether_addr **hwaddr = data; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - n = new0(struct ether_addr, 1); - if (!n) - return log_oom(); - - r = ether_addr_from_string(rvalue, n); - if (r < 0) { - log_syntax(unit, LOG_ERR, filename, line, r, "Not a valid MAC address, ignoring assignment: %s", rvalue); - return 0; - } - - free_and_replace(*hwaddr, n); - - return 0; -} - -int config_parse_hwaddrs(const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - _cleanup_set_free_free_ Set *s = NULL; - const char *p = rvalue; - Set **hwaddrs = data; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - if (isempty(rvalue)) { - /* Empty assignment resets the list */ - *hwaddrs = set_free_free(*hwaddrs); - return 0; - } - - s = set_new(ðer_addr_hash_ops); - if (!s) - return log_oom(); - - for (;;) { - _cleanup_free_ char *word = NULL; - _cleanup_free_ struct ether_addr *n = NULL; - - r = extract_first_word(&p, &word, NULL, 0); - if (r == 0) - break; - if (r == -ENOMEM) - return log_oom(); - if (r < 0) { - log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue); - return 0; - } - - n = new(struct ether_addr, 1); - if (!n) - return log_oom(); - - r = ether_addr_from_string(word, n); - if (r < 0) { - log_syntax(unit, LOG_ERR, filename, line, 0, "Not a valid MAC address, ignoring: %s", word); - continue; - } - - r = set_put(s, n); - if (r < 0) - return log_oom(); - if (r > 0) - n = NULL; /* avoid cleanup */ - } - - r = set_ensure_allocated(hwaddrs, ðer_addr_hash_ops); - if (r < 0) - return log_oom(); - - r = set_move(*hwaddrs, s); - if (r < 0) - return log_oom(); - - return 0; -} - -int config_parse_bridge_port_priority( - const char *unit, - const char *filename, - unsigned line, - const char *section, - unsigned section_line, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { - - uint16_t i; - int r; - - assert(filename); - assert(lvalue); - assert(rvalue); - assert(data); - - r = safe_atou16(rvalue, &i); - if (r < 0) { - log_syntax(unit, LOG_ERR, filename, line, r, - "Failed to parse bridge port priority, ignoring: %s", rvalue); - return 0; - } - - if (i > LINK_BRIDGE_PORT_PRIORITY_MAX) { - log_syntax(unit, LOG_ERR, filename, line, r, - "Bridge port priority is larger than maximum %u, ignoring: %s", LINK_BRIDGE_PORT_PRIORITY_MAX, rvalue); - return 0; - } - - *((uint16_t *)data) = i; - - return 0; -} -#endif /* NM_IGNORED */ - -size_t serialize_in_addrs(FILE *f, - const struct in_addr *addresses, - size_t size, - bool *with_leading_space, - bool (*predicate)(const struct in_addr *addr)) { - assert(f); - assert(addresses); - - size_t count = 0; - bool _space = false; - if (!with_leading_space) - with_leading_space = &_space; - - for (size_t i = 0; i < size; i++) { - char sbuf[INET_ADDRSTRLEN]; - - if (predicate && !predicate(&addresses[i])) - continue; - - if (*with_leading_space) - fputc(' ', f); - fputs(inet_ntop(AF_INET, &addresses[i], sbuf, sizeof(sbuf)), f); - count++; - *with_leading_space = true; - } - - return count; -} - -int deserialize_in_addrs(struct in_addr **ret, const char *string) { - _cleanup_free_ struct in_addr *addresses = NULL; - int size = 0; - - assert(ret); - assert(string); - - for (;;) { - _cleanup_free_ char *word = NULL; - struct in_addr *new_addresses; - int r; - - r = extract_first_word(&string, &word, NULL, 0); - if (r < 0) - return r; - if (r == 0) - break; - - new_addresses = reallocarray(addresses, size + 1, sizeof(struct in_addr)); - if (!new_addresses) - return -ENOMEM; - else - addresses = new_addresses; - - r = inet_pton(AF_INET, word, &(addresses[size])); - if (r <= 0) - continue; - - size++; - } - - *ret = size > 0 ? TAKE_PTR(addresses) : NULL; - - return size; -} - -void serialize_in6_addrs(FILE *f, const struct in6_addr *addresses, size_t size, bool *with_leading_space) { - assert(f); - assert(addresses); - assert(size); - - bool _space = false; - if (!with_leading_space) - with_leading_space = &_space; - - for (size_t i = 0; i < size; i++) { - char buffer[INET6_ADDRSTRLEN]; - - if (*with_leading_space) - fputc(' ', f); - fputs(inet_ntop(AF_INET6, addresses+i, buffer, sizeof(buffer)), f); - *with_leading_space = true; - } -} - -int deserialize_in6_addrs(struct in6_addr **ret, const char *string) { - _cleanup_free_ struct in6_addr *addresses = NULL; - int size = 0; - - assert(ret); - assert(string); - - for (;;) { - _cleanup_free_ char *word = NULL; - struct in6_addr *new_addresses; - int r; - - r = extract_first_word(&string, &word, NULL, 0); - if (r < 0) - return r; - if (r == 0) - break; - - new_addresses = reallocarray(addresses, size + 1, sizeof(struct in6_addr)); - if (!new_addresses) - return -ENOMEM; - else - addresses = new_addresses; - - r = inet_pton(AF_INET6, word, &(addresses[size])); - if (r <= 0) - continue; - - size++; - } - - *ret = TAKE_PTR(addresses); - - return size; -} - -void serialize_dhcp_routes(FILE *f, const char *key, sd_dhcp_route **routes, size_t size) { - assert(f); - assert(key); - assert(routes); - assert(size); - - fprintf(f, "%s=", key); - - for (size_t i = 0; i < size; i++) { - char sbuf[INET_ADDRSTRLEN]; - struct in_addr dest, gw; - uint8_t length; - - assert_se(sd_dhcp_route_get_destination(routes[i], &dest) >= 0); - assert_se(sd_dhcp_route_get_gateway(routes[i], &gw) >= 0); - assert_se(sd_dhcp_route_get_destination_prefix_length(routes[i], &length) >= 0); - - fprintf(f, "%s/%" PRIu8, inet_ntop(AF_INET, &dest, sbuf, sizeof sbuf), length); - fprintf(f, ",%s%s", inet_ntop(AF_INET, &gw, sbuf, sizeof sbuf), i < size - 1 ? " ": ""); - } - - fputs("\n", f); -} - -int deserialize_dhcp_routes(struct sd_dhcp_route **ret, size_t *ret_size, size_t *ret_allocated, const char *string) { - _cleanup_free_ struct sd_dhcp_route *routes = NULL; - size_t size = 0, allocated = 0; - - assert(ret); - assert(ret_size); - assert(ret_allocated); - assert(string); - - /* WORD FORMAT: dst_ip/dst_prefixlen,gw_ip */ - for (;;) { - _cleanup_free_ char *word = NULL; - char *tok, *tok_end; - unsigned n; - int r; - - r = extract_first_word(&string, &word, NULL, 0); - if (r < 0) - return r; - if (r == 0) - break; - - if (!GREEDY_REALLOC(routes, allocated, size + 1)) - return -ENOMEM; - - tok = word; - - /* get the subnet */ - tok_end = strchr(tok, '/'); - if (!tok_end) - continue; - *tok_end = '\0'; - - r = inet_aton(tok, &routes[size].dst_addr); - if (r == 0) - continue; - - tok = tok_end + 1; - - /* get the prefixlen */ - tok_end = strchr(tok, ','); - if (!tok_end) - continue; - - *tok_end = '\0'; - - r = safe_atou(tok, &n); - if (r < 0 || n > 32) - continue; - - routes[size].dst_prefixlen = (uint8_t) n; - tok = tok_end + 1; - - /* get the gateway */ - r = inet_aton(tok, &routes[size].gw_addr); - if (r == 0) - continue; - - size++; - } - - *ret_size = size; - *ret_allocated = allocated; - *ret = TAKE_PTR(routes); - - return 0; -} - -int serialize_dhcp_option(FILE *f, const char *key, const void *data, size_t size) { - _cleanup_free_ char *hex_buf = NULL; - - assert(f); - assert(key); - assert(data); - - hex_buf = hexmem(data, size); - if (!hex_buf) - return -ENOMEM; - - fprintf(f, "%s=%s\n", key, hex_buf); - - return 0; -} |