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git.proxmox.com Git - mirror_frr.git/blob - zebra/rtread_sysctl.c
1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Kernel routing table read by sysctl function.
4 * Copyright (C) 1997, 98 Kunihiro Ishiguro
9 #if !defined(GNU_LINUX)
16 #include "zebra/kernel_socket.h"
17 #include "zebra/zebra_pbr.h"
18 #include "zebra/zebra_tc.h"
19 #include "zebra/zebra_errors.h"
21 /* Kernel routing table read up by sysctl function. */
22 void route_read(struct zebra_ns
*zns
)
24 caddr_t buf
, end
, ref
;
26 struct rt_msghdr
*rtm
;
29 int mib
[MIBSIZ
] = {CTL_NET
, PF_ROUTE
, 0, 0, NET_RT_DUMP
, 0};
31 if (zns
->ns_id
!= NS_DEFAULT
)
34 /* Get buffer size. */
35 if (sysctl(mib
, MIBSIZ
, NULL
, &bufsiz
, NULL
, 0) < 0) {
36 flog_warn(EC_ZEBRA_SYSCTL_FAILED
, "sysctl fail: %s",
37 safe_strerror(errno
));
41 /* Allocate buffer. */
42 ref
= buf
= XMALLOC(MTYPE_TMP
, bufsiz
);
44 /* Read routing table information by calling sysctl(). */
45 if (sysctl(mib
, MIBSIZ
, buf
, &bufsiz
, NULL
, 0) < 0) {
46 flog_warn(EC_ZEBRA_SYSCTL_FAILED
, "sysctl() fail by %s",
47 safe_strerror(errno
));
48 XFREE(MTYPE_TMP
, ref
);
52 for (end
= buf
+ bufsiz
; buf
< end
; buf
+= rtm
->rtm_msglen
) {
53 rtm
= (struct rt_msghdr
*)buf
;
54 /* We must set RTF_DONE here, so rtm_read() doesn't ignore the
56 SET_FLAG(rtm
->rtm_flags
, RTF_DONE
);
61 XFREE(MTYPE_TMP
, ref
);
66 /* Only implemented for the netlink method. */
67 void macfdb_read(struct zebra_ns
*zns
)
71 void macfdb_read_for_bridge(struct zebra_ns
*zns
, struct interface
*ifp
,
72 struct interface
*br_if
, vlanid_t vid
)
76 void macfdb_read_mcast_entry_for_vni(struct zebra_ns
*zns
,
77 struct interface
*ifp
, vni_t vni
)
81 void macfdb_read_specific_mac(struct zebra_ns
*zns
, struct interface
*br_if
,
82 const struct ethaddr
*mac
, vlanid_t vid
)
86 void neigh_read(struct zebra_ns
*zns
)
90 void neigh_read_for_vlan(struct zebra_ns
*zns
, struct interface
*vlan_if
)
94 void neigh_read_specific_ip(const struct ipaddr
*ip
, struct interface
*vlan_if
)
98 void kernel_read_pbr_rules(struct zebra_ns
*zns
)
102 void kernel_read_tc_qdisc(struct zebra_ns
*zns
)
106 void vlan_read(struct zebra_ns
*zns
)
110 #endif /* !defined(GNU_LINUX) */