2 * SPDX-License-Identifier: BSD-3-Clause
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32 #include <sys/param.h>
33 #include <sys/protosw.h>
34 #include <sys/socket.h>
35 #include <sys/socketvar.h>
36 #include <sys/sysctl.h>
40 #include <net/if_dl.h>
41 #include <arpa/inet.h>
59 fmt_flags(const struct bits *p, int f)
64 for (flags = name; p->b_mask; p++)
72 print_flags_generic(int flags, const struct bits *pbits, const char *format,
78 xo_emit(format, fmt_flags(pbits, flags));
80 snprintf(tag_fmt, sizeof(tag_fmt), "{le:%s/%%s}", tag_name);
81 xo_open_list(tag_name);
82 for (p = pbits; p->b_mask; p++)
83 if (p->b_mask & flags)
84 xo_emit(tag_fmt, p->b_name);
85 xo_close_list(tag_name);
89 prepare_ifmap(size_t *pifmap_size)
91 int ifindex = 0, size;
92 struct ifaddrs *ifap, *ifa;
93 struct sockaddr_dl *sdl;
95 struct ifmap_entry *ifmap = NULL;
99 * Retrieve interface list at first
100 * since we need #ifindex -> if_xname match
102 if (getifaddrs(&ifap) != 0)
103 err(EX_OSERR, "getifaddrs");
105 for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
107 if (ifa->ifa_addr->sa_family != AF_LINK)
110 sdl = (struct sockaddr_dl *)ifa->ifa_addr;
111 ifindex = sdl->sdl_index;
113 if (ifindex >= ifmap_size) {
114 size = roundup2(ifindex + 1, 32) *
115 sizeof(struct ifmap_entry);
116 if ((ifmap = realloc(ifmap, size)) == NULL)
117 errx(2, "realloc(%d) failed", size);
118 memset(&ifmap[ifmap_size], 0,
120 sizeof(struct ifmap_entry));
122 ifmap_size = roundup2(ifindex + 1, 32);
125 if (*ifmap[ifindex].ifname != '\0')
128 strlcpy(ifmap[ifindex].ifname, ifa->ifa_name, IFNAMSIZ);
133 *pifmap_size = ifmap_size;