diff options
Diffstat (limited to 'shared/nm-utils/nm-shared-utils.h')
| -rw-r--r-- | shared/nm-utils/nm-shared-utils.h | 304 |
1 files changed, 304 insertions, 0 deletions
diff --git a/shared/nm-utils/nm-shared-utils.h b/shared/nm-utils/nm-shared-utils.h index 69f9533d..96aab534 100644 --- a/shared/nm-utils/nm-shared-utils.h +++ b/shared/nm-utils/nm-shared-utils.h @@ -22,8 +22,143 @@ #ifndef __NM_SHARED_UTILS_H__ #define __NM_SHARED_UTILS_H__ +#include <netinet/in.h> + +/*****************************************************************************/ + +typedef struct { + union { + guint8 addr_ptr[1]; + in_addr_t addr4; + struct in6_addr addr6; + + /* NMIPAddr is really a union for IP addresses. + * However, as ethernet addresses fit in here nicely, use + * it also for an ethernet MAC address. */ + guint8 addr_eth[6 /*ETH_ALEN*/]; + }; +} NMIPAddr; + +extern const NMIPAddr nm_ip_addr_zero; + +/*****************************************************************************/ + +static inline char +nm_utils_addr_family_to_char (int addr_family) +{ + switch (addr_family) { + case AF_INET: return '4'; + case AF_INET6: return '6'; + } + g_return_val_if_reached ('?'); +} + +static inline gsize +nm_utils_addr_family_to_size (int addr_family) +{ + switch (addr_family) { + case AF_INET: return sizeof (in_addr_t); + case AF_INET6: return sizeof (struct in6_addr); + } + g_return_val_if_reached (0); +} + +#define nm_assert_addr_family(addr_family) \ + nm_assert (NM_IN_SET ((addr_family), AF_INET, AF_INET6)) + +/*****************************************************************************/ + +#define NM_CMP_RETURN(c) \ + G_STMT_START { \ + const int _cc = (c); \ + if (_cc) \ + return _cc < 0 ? -1 : 1; \ + } G_STMT_END + +#define NM_CMP_SELF(a, b) \ + G_STMT_START { \ + typeof (a) _a = (a); \ + typeof (b) _b = (b); \ + \ + if (_a == _b) \ + return 0; \ + if (!_a) \ + return -1; \ + if (!_b) \ + return 1; \ + } G_STMT_END + +#define NM_CMP_DIRECT(a, b) \ + G_STMT_START { \ + typeof (a) _a = (a); \ + typeof (b) _b = (b); \ + \ + if (_a != _b) \ + return (_a < _b) ? -1 : 1; \ + } G_STMT_END + +#define NM_CMP_DIRECT_MEMCMP(a, b, size) \ + NM_CMP_RETURN (memcmp ((a), (b), (size))) + +#define NM_CMP_DIRECT_IN6ADDR(a, b) \ + G_STMT_START { \ + const struct in6_addr *const _a = (a); \ + const struct in6_addr *const _b = (b); \ + NM_CMP_RETURN (memcmp (_a, _b, sizeof (struct in6_addr))); \ + } G_STMT_END + +#define NM_CMP_FIELD(a, b, field) \ + NM_CMP_DIRECT (((a)->field), ((b)->field)) + +#define NM_CMP_FIELD_UNSAFE(a, b, field) \ + G_STMT_START { \ + /* it's unsafe, because it evaluates the arguments more then once. + * This is necessary for bitfields, for which typeof() doesn't work. */ \ + if (((a)->field) != ((b)->field)) \ + return ((a)->field < ((b)->field)) ? -1 : 1; \ + } G_STMT_END + +#define NM_CMP_FIELD_BOOL(a, b, field) \ + NM_CMP_DIRECT (!!((a)->field), !!((b)->field)) + +#define NM_CMP_FIELD_STR(a, b, field) \ + NM_CMP_RETURN (strcmp (((a)->field), ((b)->field))) + +#define NM_CMP_FIELD_STR_INTERNED(a, b, field) \ + G_STMT_START { \ + const char *_a = ((a)->field); \ + const char *_b = ((b)->field); \ + \ + if (_a != _b) { \ + NM_CMP_RETURN (g_strcmp0 (_a, _b)); \ + } \ + } G_STMT_END + +#define NM_CMP_FIELD_STR0(a, b, field) \ + NM_CMP_RETURN (g_strcmp0 (((a)->field), ((b)->field))) + +#define NM_CMP_FIELD_MEMCMP_LEN(a, b, field, len) \ + NM_CMP_RETURN (memcmp (&((a)->field), &((b)->field), \ + MIN (len, sizeof ((a)->field)))) + +#define NM_CMP_FIELD_MEMCMP(a, b, field) \ + NM_CMP_RETURN (memcmp (&((a)->field), \ + &((b)->field), \ + sizeof ((a)->field))) + +#define NM_CMP_FIELD_IN6ADDR(a, b, field) \ + G_STMT_START { \ + const struct in6_addr *const _a = &((a)->field); \ + const struct in6_addr *const _b = &((b)->field); \ + NM_CMP_RETURN (memcmp (_a, _b, sizeof (struct in6_addr))); \ + } G_STMT_END + /*****************************************************************************/ +extern const void *const _NM_PTRARRAY_EMPTY[1]; + +#define NM_PTRARRAY_EMPTY(type) ((type const*) _NM_PTRARRAY_EMPTY) + static inline void _nm_utils_strbuf_init (char *buf, gsize len, char **p_buf_ptr, gsize *p_buf_len) { @@ -41,12 +176,47 @@ void nm_utils_strbuf_append (char **buf, gsize *len, const char *format, ...) _n void nm_utils_strbuf_append_c (char **buf, gsize *len, char c); void nm_utils_strbuf_append_str (char **buf, gsize *len, const char *str); +const char *nm_strquote (char *buf, gsize buf_len, const char *str); + /*****************************************************************************/ +const char **nm_utils_strsplit_set (const char *str, const char *delimiters); + gssize nm_utils_strv_find_first (char **list, gssize len, const char *needle); +char **_nm_utils_strv_cleanup (char **strv, + gboolean strip_whitespace, + gboolean skip_empty, + gboolean skip_repeated); + +/*****************************************************************************/ + +guint32 _nm_utils_ip4_prefix_to_netmask (guint32 prefix); +guint32 _nm_utils_ip4_get_default_prefix (guint32 ip); + +gboolean nm_utils_ip_is_site_local (int addr_family, + const void *address); + /*****************************************************************************/ +gboolean nm_utils_parse_inaddr_bin (int addr_family, + const char *text, + gpointer out_addr); + +gboolean nm_utils_parse_inaddr (int addr_family, + const char *text, + char **out_addr); + +gboolean nm_utils_parse_inaddr_prefix_bin (int addr_family, + const char *text, + gpointer out_addr, + int *out_prefix); + +gboolean nm_utils_parse_inaddr_prefix (int addr_family, + const char *text, + char **out_addr, + int *out_prefix); + gint64 _nm_utils_ascii_str_to_int64 (const char *str, guint base, gint64 min, gint64 max, gint64 fallback); gint _nm_utils_ascii_str_to_bool (const char *str, @@ -54,6 +224,123 @@ gint _nm_utils_ascii_str_to_bool (const char *str, /*****************************************************************************/ +extern char _nm_utils_to_string_buffer[2096]; + +void nm_utils_to_string_buffer_init (char **buf, gsize *len); +gboolean nm_utils_to_string_buffer_init_null (gconstpointer obj, char **buf, gsize *len); + +/*****************************************************************************/ + +typedef struct { + unsigned flag; + const char *name; +} NMUtilsFlags2StrDesc; + +#define NM_UTILS_FLAGS2STR(f, n) { .flag = f, .name = ""n, } + +#define _NM_UTILS_FLAGS2STR_DEFINE(scope, fcn_name, flags_type, ...) \ +scope const char * \ +fcn_name (flags_type flags, char *buf, gsize len) \ +{ \ + static const NMUtilsFlags2StrDesc descs[] = { \ + __VA_ARGS__ \ + }; \ + G_STATIC_ASSERT (sizeof (flags_type) <= sizeof (unsigned)); \ + return nm_utils_flags2str (descs, G_N_ELEMENTS (descs), flags, buf, len); \ +}; + +#define NM_UTILS_FLAGS2STR_DEFINE(fcn_name, flags_type, ...) \ + _NM_UTILS_FLAGS2STR_DEFINE (, fcn_name, flags_type, __VA_ARGS__) +#define NM_UTILS_FLAGS2STR_DEFINE_STATIC(fcn_name, flags_type, ...) \ + _NM_UTILS_FLAGS2STR_DEFINE (static, fcn_name, flags_type, __VA_ARGS__) + +const char *nm_utils_flags2str (const NMUtilsFlags2StrDesc *descs, + gsize n_descs, + unsigned flags, + char *buf, + gsize len); + +/*****************************************************************************/ + +#define NM_UTILS_ENUM2STR(v, n) (void) 0; case v: s = ""n""; break; (void) 0 +#define NM_UTILS_ENUM2STR_IGNORE(v) (void) 0; case v: break; (void) 0 + +#define _NM_UTILS_ENUM2STR_DEFINE(scope, fcn_name, lookup_type, int_fmt, ...) \ +scope const char * \ +fcn_name (lookup_type val, char *buf, gsize len) \ +{ \ + nm_utils_to_string_buffer_init (&buf, &len); \ + if (len) { \ + const char *s = NULL; \ + switch (val) { \ + (void) 0, \ + __VA_ARGS__ \ + (void) 0; \ + }; \ + if (s) \ + g_strlcpy (buf, s, len); \ + else \ + g_snprintf (buf, len, "(%"int_fmt")", val); \ + } \ + return buf; \ +} + +#define NM_UTILS_ENUM2STR_DEFINE(fcn_name, lookup_type, ...) \ + _NM_UTILS_ENUM2STR_DEFINE (, fcn_name, lookup_type, "d", __VA_ARGS__) +#define NM_UTILS_ENUM2STR_DEFINE_STATIC(fcn_name, lookup_type, ...) \ + _NM_UTILS_ENUM2STR_DEFINE (static, fcn_name, lookup_type, "d", __VA_ARGS__) + +/*****************************************************************************/ + +#define _nm_g_slice_free_fcn_define(mem_size) \ +static inline void \ +_nm_g_slice_free_fcn_##mem_size (gpointer mem_block) \ +{ \ + g_slice_free1 (mem_size, mem_block); \ +} + +_nm_g_slice_free_fcn_define (1) +_nm_g_slice_free_fcn_define (2) +_nm_g_slice_free_fcn_define (4) +_nm_g_slice_free_fcn_define (8) +_nm_g_slice_free_fcn_define (12) +_nm_g_slice_free_fcn_define (16) + +#define _nm_g_slice_free_fcn1(mem_size) \ + ({ \ + void (*_fcn) (gpointer); \ + \ + /* If mem_size is a compile time constant, the compiler + * will be able to optimize this. Hence, you don't want + * to call this with a non-constant size argument. */ \ + switch (mem_size) { \ + case 1: _fcn = _nm_g_slice_free_fcn_1; break; \ + case 2: _fcn = _nm_g_slice_free_fcn_2; break; \ + case 4: _fcn = _nm_g_slice_free_fcn_4; break; \ + case 8: _fcn = _nm_g_slice_free_fcn_8; break; \ + case 12: _fcn = _nm_g_slice_free_fcn_12; break; \ + case 16: _fcn = _nm_g_slice_free_fcn_16; break; \ + default: g_assert_not_reached (); _fcn = NULL; break; \ + } \ + _fcn; \ + }) + +/** + * nm_g_slice_free_fcn: + * @type: type argument for sizeof() operator that you would + * pass to g_slice_new(). + * + * Returns: a function pointer with GDestroyNotify signature + * for g_slice_free(type,*). + * + * Only certain types are implemented. You'll get an assertion + * using the wrong type. */ +#define nm_g_slice_free_fcn(type) (_nm_g_slice_free_fcn1 (sizeof (type))) + +#define nm_g_slice_free_fcn_gint64 (nm_g_slice_free_fcn (gint64)) + +/*****************************************************************************/ + /** * NMUtilsError: * @NM_UTILS_ERROR_UNKNOWN: unknown or unclassified error @@ -62,10 +349,12 @@ gint _nm_utils_ascii_str_to_bool (const char *str, * error reason. Depending on the usage, this might indicate a bug because * usually the target object should stay alive as long as there are pending * operations. + * @NM_UTILS_ERROR_INVALID_ARGUMENT: invalid argument. */ typedef enum { NM_UTILS_ERROR_UNKNOWN = 0, /*< nick=Unknown >*/ NM_UTILS_ERROR_CANCELLED_DISPOSING, /*< nick=CancelledDisposing >*/ + NM_UTILS_ERROR_INVALID_ARGUMENT, /*< nick=InvalidArgument >*/ } NMUtilsError; #define NM_UTILS_ERROR (nm_utils_error_quark ()) @@ -84,6 +373,9 @@ gboolean nm_g_object_set_property (GObject *object, const GValue *value, GError **error); +GParamSpec *nm_g_object_class_find_property_from_gtype (GType gtype, + const char *property_name); + /*****************************************************************************/ typedef enum { @@ -102,4 +394,16 @@ char *nm_utils_str_utf8safe_escape_take (char *str, NMUtilsStrUtf8SafeFlags flag /*****************************************************************************/ +#define NM_UTILS_NS_PER_SECOND ((gint64) 1000000000) +#define NM_UTILS_NS_PER_MSEC ((gint64) 1000000) +#define NM_UTILS_NS_TO_MSEC_CEIL(nsec) (((nsec) + (NM_UTILS_NS_PER_MSEC - 1)) / NM_UTILS_NS_PER_MSEC) + +/*****************************************************************************/ + +int nm_utils_fd_wait_for_event (int fd, int event, gint64 timeout_ns); +ssize_t nm_utils_fd_read_loop (int fd, void *buf, size_t nbytes, bool do_poll); +int nm_utils_fd_read_loop_exact (int fd, void *buf, size_t nbytes, bool do_poll); + +/*****************************************************************************/ + #endif /* __NM_SHARED_UTILS_H__ */ |