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. */
route_read(struct zebra_ns * zns)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. */
macfdb_read(struct zebra_ns * zns)82 void macfdb_read(struct zebra_ns *zns)
83 {
84 }
85
macfdb_read_for_bridge(struct zebra_ns * zns,struct interface * ifp,struct interface * br_if)86 void macfdb_read_for_bridge(struct zebra_ns *zns, struct interface *ifp,
87 struct interface *br_if)
88 {
89 }
90
macfdb_read_specific_mac(struct zebra_ns * zns,struct interface * br_if,struct ethaddr * mac,vlanid_t vid)91 void macfdb_read_specific_mac(struct zebra_ns *zns, struct interface *br_if,
92 struct ethaddr *mac, vlanid_t vid)
93 {
94 }
95
neigh_read(struct zebra_ns * zns)96 void neigh_read(struct zebra_ns *zns)
97 {
98 }
99
neigh_read_for_vlan(struct zebra_ns * zns,struct interface * vlan_if)100 void neigh_read_for_vlan(struct zebra_ns *zns, struct interface *vlan_if)
101 {
102 }
103
neigh_read_specific_ip(struct ipaddr * ip,struct interface * vlan_if)104 void neigh_read_specific_ip(struct ipaddr *ip, struct interface *vlan_if)
105 {
106 }
107
kernel_read_pbr_rules(struct zebra_ns * zns)108 void kernel_read_pbr_rules(struct zebra_ns *zns)
109 {
110 }
111
112 #endif /* !defined(GNU_LINUX) && !defined(SUNOS_5) */
113