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1 | /* | |
2 | * Kernel routing table read 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 | * | |
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 | |
20 | */ | |
21 | ||
22 | #include <zebra.h> | |
23 | ||
24 | #if !defined(GNU_LINUX) && !defined(SUNOS_5) | |
25 | ||
26 | #include "memory.h" | |
27 | #include "zebra_memory.h" | |
28 | #include "log.h" | |
29 | #include "vrf.h" | |
30 | ||
31 | #include "zebra/rt.h" | |
32 | #include "zebra/kernel_socket.h" | |
33 | #include "zebra/zebra_pbr.h" | |
34 | #include "zebra/zebra_errors.h" | |
35 | ||
36 | /* Kernel routing table read up by sysctl function. */ | |
37 | void route_read(struct zebra_ns *zns) | |
38 | { | |
39 | caddr_t buf, end, ref; | |
40 | size_t bufsiz; | |
41 | struct rt_msghdr *rtm; | |
42 | ||
43 | #define MIBSIZ 6 | |
44 | int mib[MIBSIZ] = {CTL_NET, PF_ROUTE, 0, 0, NET_RT_DUMP, 0}; | |
45 | ||
46 | if (zns->ns_id != NS_DEFAULT) | |
47 | return; | |
48 | ||
49 | /* Get buffer size. */ | |
50 | if (sysctl(mib, MIBSIZ, NULL, &bufsiz, NULL, 0) < 0) { | |
51 | flog_warn(EC_ZEBRA_SYSCTL_FAILED, "sysctl fail: %s", | |
52 | safe_strerror(errno)); | |
53 | return; | |
54 | } | |
55 | ||
56 | /* Allocate buffer. */ | |
57 | ref = buf = XMALLOC(MTYPE_TMP, bufsiz); | |
58 | ||
59 | /* Read routing table information by calling sysctl(). */ | |
60 | if (sysctl(mib, MIBSIZ, buf, &bufsiz, NULL, 0) < 0) { | |
61 | flog_warn(EC_ZEBRA_SYSCTL_FAILED, "sysctl() fail by %s", | |
62 | safe_strerror(errno)); | |
63 | XFREE(MTYPE_TMP, ref); | |
64 | return; | |
65 | } | |
66 | ||
67 | for (end = buf + bufsiz; buf < end; buf += rtm->rtm_msglen) { | |
68 | rtm = (struct rt_msghdr *)buf; | |
69 | /* We must set RTF_DONE here, so rtm_read() doesn't ignore the | |
70 | * message. */ | |
71 | SET_FLAG(rtm->rtm_flags, RTF_DONE); | |
72 | rtm_read(rtm); | |
73 | } | |
74 | ||
75 | /* Free buffer. */ | |
76 | XFREE(MTYPE_TMP, ref); | |
77 | ||
78 | return; | |
79 | } | |
80 | ||
81 | /* Only implemented for the netlink method. */ | |
82 | void macfdb_read(struct zebra_ns *zns) | |
83 | { | |
84 | } | |
85 | ||
86 | void macfdb_read_for_bridge(struct zebra_ns *zns, struct interface *ifp, | |
87 | struct interface *br_if) | |
88 | { | |
89 | } | |
90 | ||
91 | void neigh_read(struct zebra_ns *zns) | |
92 | { | |
93 | } | |
94 | ||
95 | void neigh_read_for_vlan(struct zebra_ns *zns, struct interface *vlan_if) | |
96 | { | |
97 | } | |
98 | ||
99 | void kernel_read_pbr_rules(struct zebra_ns *zns) | |
100 | { | |
101 | } | |
102 | ||
103 | #endif /* !defined(GNU_LINUX) && !defined(SUNOS_5) */ |