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Commit | Line | Data |
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718e3744 | 1 | /* |
2 | * Get interface's address and mask information by sysctl() function. | |
3 | * Copyright (C) 1997, 98 Kunihiro Ishiguro | |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
896014f4 DL |
17 | * You should have received a copy of the GNU General Public License along |
18 | * with this program; see the file COPYING; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 20 | */ |
21 | ||
22 | #include <zebra.h> | |
23 | ||
ddfeb486 DL |
24 | #if !defined(GNU_LINUX) && !defined(OPEN_BSD) && !defined(SUNOS_5) |
25 | ||
718e3744 | 26 | #include "if.h" |
27 | #include "sockunion.h" | |
28 | #include "prefix.h" | |
29 | #include "connected.h" | |
30 | #include "memory.h" | |
4a1ab8e4 | 31 | #include "zebra_memory.h" |
718e3744 | 32 | #include "ioctl.h" |
33 | #include "log.h" | |
8f7d9fc0 FL |
34 | #include "interface.h" |
35 | #include "vrf.h" | |
718e3744 | 36 | |
ec1a4283 | 37 | #include "zebra/rt.h" |
38 | #include "zebra/kernel_socket.h" | |
8f7d9fc0 | 39 | #include "zebra/rib.h" |
364fed6b | 40 | #include "zebra/zebra_errors.h" |
ec1a4283 | 41 | |
d62a17ae | 42 | void ifstat_update_sysctl(void) |
718e3744 | 43 | { |
d62a17ae | 44 | caddr_t ref, buf, end; |
45 | size_t bufsiz; | |
46 | struct if_msghdr *ifm; | |
47 | struct interface *ifp; | |
718e3744 | 48 | |
49 | #define MIBSIZ 6 | |
d62a17ae | 50 | int mib[MIBSIZ] = { |
51 | CTL_NET, PF_ROUTE, 0, 0, /* AF_INET & AF_INET6 */ | |
52 | NET_RT_IFLIST, 0}; | |
53 | ||
54 | /* Query buffer size. */ | |
55 | if (sysctl(mib, MIBSIZ, NULL, &bufsiz, NULL, 0) < 0) { | |
e914ccbe | 56 | flog_warn(EC_ZEBRA_SYSCTL_FAILED, "sysctl() error by %s", |
9df414fe | 57 | safe_strerror(errno)); |
d62a17ae | 58 | return; |
718e3744 | 59 | } |
718e3744 | 60 | |
d62a17ae | 61 | /* We free this memory at the end of this function. */ |
62 | ref = buf = XMALLOC(MTYPE_TMP, bufsiz); | |
718e3744 | 63 | |
0437e105 | 64 | /* Fetch interface information into allocated buffer. */ |
d62a17ae | 65 | if (sysctl(mib, MIBSIZ, buf, &bufsiz, NULL, 0) < 0) { |
e914ccbe | 66 | flog_warn(EC_ZEBRA_SYSCTL_FAILED, "sysctl error by %s", |
9df414fe | 67 | safe_strerror(errno)); |
d62a17ae | 68 | XFREE(MTYPE_TMP, ref); |
69 | return; | |
70 | } | |
71 | ||
72 | /* Parse both interfaces and addresses. */ | |
73 | for (end = buf + bufsiz; buf < end; buf += ifm->ifm_msglen) { | |
74 | ifm = (struct if_msghdr *)buf; | |
75 | if (ifm->ifm_type == RTM_IFINFO) { | |
76 | ifp = if_lookup_by_index(ifm->ifm_index, VRF_DEFAULT); | |
77 | if (ifp) | |
78 | ifp->stats = ifm->ifm_data; | |
79 | } | |
80 | } | |
81 | ||
82 | /* Free sysctl buffer. */ | |
83 | XFREE(MTYPE_TMP, ref); | |
84 | ||
85 | return; | |
718e3744 | 86 | } |
87 | ||
88 | /* Interface listing up function using sysctl(). */ | |
d62a17ae | 89 | void interface_list(struct zebra_ns *zns) |
718e3744 | 90 | { |
d62a17ae | 91 | caddr_t ref, buf, end; |
92 | size_t bufsiz; | |
93 | struct if_msghdr *ifm; | |
718e3744 | 94 | |
95 | #define MIBSIZ 6 | |
d62a17ae | 96 | int mib[MIBSIZ] = { |
97 | CTL_NET, PF_ROUTE, 0, 0, /* AF_INET & AF_INET6 */ | |
98 | NET_RT_IFLIST, 0}; | |
99 | ||
100 | if (zns->ns_id != NS_DEFAULT) { | |
9df414fe | 101 | zlog_debug("interface_list: ignore NS %u", zns->ns_id); |
d62a17ae | 102 | return; |
103 | } | |
104 | ||
105 | /* Query buffer size. */ | |
106 | if (sysctl(mib, MIBSIZ, NULL, &bufsiz, NULL, 0) < 0) { | |
e914ccbe | 107 | flog_err_sys(EC_ZEBRA_IFLIST_FAILED, |
9df414fe QY |
108 | "Could not enumerate interfaces: %s", |
109 | safe_strerror(errno)); | |
d62a17ae | 110 | return; |
111 | } | |
112 | ||
113 | /* We free this memory at the end of this function. */ | |
114 | ref = buf = XMALLOC(MTYPE_TMP, bufsiz); | |
115 | ||
0437e105 | 116 | /* Fetch interface information into allocated buffer. */ |
d62a17ae | 117 | if (sysctl(mib, MIBSIZ, buf, &bufsiz, NULL, 0) < 0) { |
e914ccbe | 118 | flog_err_sys(EC_ZEBRA_IFLIST_FAILED, |
9df414fe QY |
119 | "Could not enumerate interfaces: %s", |
120 | safe_strerror(errno)); | |
d62a17ae | 121 | return; |
122 | } | |
123 | ||
124 | /* Parse both interfaces and addresses. */ | |
125 | for (end = buf + bufsiz; buf < end; buf += ifm->ifm_msglen) { | |
126 | ifm = (struct if_msghdr *)buf; | |
127 | ||
128 | switch (ifm->ifm_type) { | |
129 | case RTM_IFINFO: | |
130 | ifm_read(ifm); | |
131 | break; | |
132 | case RTM_NEWADDR: | |
133 | ifam_read((struct ifa_msghdr *)ifm); | |
134 | break; | |
135 | default: | |
136 | zlog_info("interfaces_list(): unexpected message type"); | |
137 | XFREE(MTYPE_TMP, ref); | |
138 | return; | |
139 | break; | |
140 | } | |
718e3744 | 141 | } |
718e3744 | 142 | |
d62a17ae | 143 | /* Free sysctl buffer. */ |
144 | XFREE(MTYPE_TMP, ref); | |
718e3744 | 145 | } |
ddfeb486 DL |
146 | |
147 | #endif /* !defined(GNU_LINUX) && !defined(OPEN_BSD) && !defined(SUNOS_5) */ |