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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:53:30 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:53:30 +0000 |
commit | 2c7cac91ed6e7db0f6937923d2b57f97dbdbc337 (patch) | |
tree | c05dc0f8e6aa3accc84e3e5cffc933ed94941383 /zebra/rtread_sysctl.c | |
parent | Initial commit. (diff) | |
download | frr-upstream.tar.xz frr-upstream.zip |
Adding upstream version 8.4.4.upstream/8.4.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'zebra/rtread_sysctl.c')
-rw-r--r-- | zebra/rtread_sysctl.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/zebra/rtread_sysctl.c b/zebra/rtread_sysctl.c new file mode 100644 index 0000000..594f7c2 --- /dev/null +++ b/zebra/rtread_sysctl.c @@ -0,0 +1,111 @@ +/* + * Kernel routing table read by sysctl function. + * Copyright (C) 1997, 98 Kunihiro Ishiguro + * + * This file is part of GNU Zebra. + * + * GNU Zebra is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * GNU Zebra is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; see the file COPYING; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <zebra.h> + +#if !defined(GNU_LINUX) + +#include "memory.h" +#include "log.h" +#include "vrf.h" + +#include "zebra/rt.h" +#include "zebra/kernel_socket.h" +#include "zebra/zebra_pbr.h" +#include "zebra/zebra_errors.h" + +/* Kernel routing table read up by sysctl function. */ +void route_read(struct zebra_ns *zns) +{ + caddr_t buf, end, ref; + size_t bufsiz; + struct rt_msghdr *rtm; + +#define MIBSIZ 6 + int mib[MIBSIZ] = {CTL_NET, PF_ROUTE, 0, 0, NET_RT_DUMP, 0}; + + if (zns->ns_id != NS_DEFAULT) + return; + + /* Get buffer size. */ + if (sysctl(mib, MIBSIZ, NULL, &bufsiz, NULL, 0) < 0) { + flog_warn(EC_ZEBRA_SYSCTL_FAILED, "sysctl fail: %s", + safe_strerror(errno)); + return; + } + + /* Allocate buffer. */ + ref = buf = XMALLOC(MTYPE_TMP, bufsiz); + + /* Read routing table information by calling sysctl(). */ + if (sysctl(mib, MIBSIZ, buf, &bufsiz, NULL, 0) < 0) { + flog_warn(EC_ZEBRA_SYSCTL_FAILED, "sysctl() fail by %s", + safe_strerror(errno)); + XFREE(MTYPE_TMP, ref); + return; + } + + for (end = buf + bufsiz; buf < end; buf += rtm->rtm_msglen) { + rtm = (struct rt_msghdr *)buf; + /* We must set RTF_DONE here, so rtm_read() doesn't ignore the + * message. */ + SET_FLAG(rtm->rtm_flags, RTF_DONE); + rtm_read(rtm); + } + + /* Free buffer. */ + XFREE(MTYPE_TMP, ref); + + return; +} + +/* Only implemented for the netlink method. */ +void macfdb_read(struct zebra_ns *zns) +{ +} + +void macfdb_read_for_bridge(struct zebra_ns *zns, struct interface *ifp, + struct interface *br_if) +{ +} + +void macfdb_read_specific_mac(struct zebra_ns *zns, struct interface *br_if, + const struct ethaddr *mac, vlanid_t vid) +{ +} + +void neigh_read(struct zebra_ns *zns) +{ +} + +void neigh_read_for_vlan(struct zebra_ns *zns, struct interface *vlan_if) +{ +} + +void neigh_read_specific_ip(const struct ipaddr *ip, struct interface *vlan_if) +{ +} + +void kernel_read_pbr_rules(struct zebra_ns *zns) +{ +} + +#endif /* !defined(GNU_LINUX) */ |