Kernel route syncer supports multiple tables.
The changes are just too extensive for lazy me to list them there, but see the comment at the top of sysdep/unix/krt.c. The code got a bit more ifdeffy than I'd like, though. Also fixed a bunch of FIXME's and added a couple of others. :)
This commit is contained in:
Martin Mares
parent
9d8856897f
commit
7de45ba4a0
6
TODO
6
TODO
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@ -6,8 +6,6 @@ Core
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- config: executable config files
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- do we really need preconfig?
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- counters (according to SNMP MIB?)
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- better memory allocators
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- default preferences of protocols: prefer BGP over OSPF/RIP external routes?
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@ -26,6 +24,10 @@ Core
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- OSPF: refuse running on non-multicast devices
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- config: when parsing prefix, check zero bits
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- krt: rescan interfaces when route addition fails?
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Cleanup
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~~~~~~~
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- right usage of DBG vs. debug
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@ -32,6 +32,7 @@ protocol kernel {
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# async off; # Netlink: Disable asynchronous events
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# import none; # Default is import all
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export all; # Default is export none
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# kernel table 5; # Kernel table to synchronize with (default: main)
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}
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protocol device {
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@ -109,6 +109,7 @@ struct rtable_config {
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node n;
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char *name;
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struct rtable *table;
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struct proto_config *krt_attached; /* Kernel syncer attached to this table */
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};
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typedef struct rtable {
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@ -104,6 +104,7 @@ do_rte_announce(struct announce_hook *a, net *net, rte *new, rte *old, ea_list *
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struct proto *p = a->proto;
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rte *new0 = new;
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rte *old0 = old;
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if (new)
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{
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int ok = p->import_control ? p->import_control(p, &new, &tmpa, rte_update_pool) : 0;
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@ -4,6 +4,8 @@ Available configuration variables:
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CONFIG_AUTO_ROUTES Device routes are added automagically by the kernel
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CONFIG_ALL_MULTICAST All devices support multicasting (i.e., ignore IFF_MULTICAST)
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CONFIG_SELF_CONSCIOUS We're able to recognize whether route was installed by us
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CONFIG_MULTIPLE_TABLES The kernel supports multiple routing tables
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CONFIG_ALL_TABLES_AT_ONCE Kernel scanner wants to process all tables at once
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CONFIG_UNIX_IFACE Use Unix interface scanner
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CONFIG_UNIX_SET Use Unix route setting
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@ -9,7 +9,8 @@
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#define CONFIG_AUTO_ROUTES
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#define CONFIG_ALL_MULTICAST
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#define CONFIG_SELF_CONSCIOUS
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#define CONFIG_MULTIPLE_TABLES 256
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#define CONFIG_MULTIPLE_TABLES
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#define CONFIG_ALL_TABLES_AT_ONCE
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/*
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Link: sysdep/linux/netlink
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@ -174,17 +174,27 @@ krt_scan_fire(struct krt_proto *p)
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}
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void
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krt_scan_preconfig(struct krt_config *c)
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krt_scan_construct(struct krt_config *c)
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{
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}
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void
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krt_scan_start(struct krt_proto *x)
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krt_scan_preconfig(struct config *c)
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{
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}
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void
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krt_scan_postconfig(struct krt_config *c)
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{
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}
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void
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krt_scan_start(struct krt_proto *x, int first)
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{
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init_list(&x->scan.temp_ifs);
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}
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void
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krt_scan_shutdown(struct krt_proto *x)
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krt_scan_shutdown(struct krt_proto *x, int last)
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{
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}
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@ -19,7 +19,7 @@ struct krt_if_params {
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struct krt_if_status {
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};
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static inline void krt_if_preconfig(struct kif_config *c) { };
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static inline void krt_if_construct(struct kif_config *c) { };
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static inline void krt_if_shutdown(struct kif_proto *p) { };
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static inline void krt_if_io_init(void) { };
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@ -17,6 +17,7 @@
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struct krt_scan_params {
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int async; /* Allow asynchronous events */
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int table_id; /* Kernel table ID we sync with */
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};
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struct krt_scan_status {
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@ -19,8 +19,8 @@ struct krt_set_params {
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struct krt_set_status {
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};
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static inline void krt_set_preconfig(struct krt_config *c) { };
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static inline void krt_set_start(struct krt_proto *p) { };
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static inline void krt_set_shutdown(struct krt_proto *p) { };
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static inline void krt_set_construct(struct krt_config *c) { };
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static inline void krt_set_start(struct krt_proto *p, int first) { };
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static inline void krt_set_shutdown(struct krt_proto *p, int last) { };
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#endif
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@ -10,7 +10,7 @@ CF_HDR
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CF_DECLS
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CF_KEYWORDS(ASYNC)
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CF_KEYWORDS(ASYNC, KERNEL, TABLE)
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CF_GRAMMAR
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@ -18,6 +18,11 @@ CF_ADDTO(kern_proto, kern_proto nl_item ';')
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nl_item:
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ASYNC bool { THIS_KRT->scan.async = $2; }
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| KERNEL TABLE expr {
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if ($3 <= 0 || $3 >= 255)
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cf_error("Kernel routing table number out of range");
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THIS_KRT->scan.table_id = $3;
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}
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;
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CF_CODE
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@ -24,6 +24,7 @@
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#include "lib/unix.h"
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#include "lib/krt.h"
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#include "lib/socket.h"
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#include "conf/conf.h"
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#include <asm/types.h>
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#include <linux/netlink.h>
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@ -403,6 +404,8 @@ krt_if_scan(struct kif_proto *p)
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* Routes
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*/
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static struct krt_proto *nl_table_map[256];
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int
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krt_capable(rte *e)
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{
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@ -431,7 +434,7 @@ krt_capable(rte *e)
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}
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static void
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nl_send_route(rte *e, int new)
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nl_send_route(struct krt_proto *p, rte *e, int new)
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{
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net *net = e->net;
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rta *a = e->attrs;
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@ -453,10 +456,10 @@ nl_send_route(rte *e, int new)
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r.r.rtm_family = AF_INET;
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r.r.rtm_dst_len = net->n.pxlen;
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r.r.rtm_tos = 0; /* FIXME: Non-zero TOS? */
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r.r.rtm_table = RT_TABLE_MAIN; /* FIXME: Other tables? */
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r.r.rtm_tos = 0;
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r.r.rtm_table = KRT_CF->scan.table_id;
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r.r.rtm_protocol = RTPROT_BIRD;
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r.r.rtm_scope = RT_SCOPE_UNIVERSE; /* FIXME: Other scopes? */
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r.r.rtm_scope = RT_SCOPE_UNIVERSE;
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nl_add_attr_ipa(&r.h, sizeof(r), RTA_DST, net->n.prefix);
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switch (a->dest)
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{
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@ -489,19 +492,22 @@ krt_set_notify(struct krt_proto *p, net *n, rte *new, rte *old)
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{
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if (old && new)
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{
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/* FIXME: Priorities and TOS should be identical as well, but we don't use them yet. */
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nl_send_route(new, 1);
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/*
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* We should check whether priority and TOS is identical as well,
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* but we don't use these and default value is always equal to default value. :-)
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*/
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nl_send_route(p, new, 1);
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}
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else
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{
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if (old)
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{
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if (!old->attrs->iface || (old->attrs->iface->flags & IF_UP))
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nl_send_route(old, 0);
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nl_send_route(p, old, 0);
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/* else the kernel has already flushed it */
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}
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if (new)
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nl_send_route(new, 1);
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nl_send_route(p, new, 1);
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}
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}
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@ -524,8 +530,9 @@ krt_temp_iface(struct krt_proto *p, unsigned index)
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}
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static void
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nl_parse_route(struct krt_proto *p, struct nlmsghdr *h, int scan)
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nl_parse_route(struct nlmsghdr *h, int scan)
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{
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struct krt_proto *p;
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struct rtmsg *i;
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struct rtattr *a[RTA_CACHEINFO+1];
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int new = h->nlmsg_type == RTM_NEWROUTE;
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@ -549,11 +556,16 @@ nl_parse_route(struct krt_proto *p, struct nlmsghdr *h, int scan)
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return;
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}
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if (i->rtm_table != RT_TABLE_MAIN) /* FIXME: What about other tables? */
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return;
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if (i->rtm_tos != 0) /* FIXME: What about TOS? */
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p = nl_table_map[i->rtm_table]; /* Do we know this table? */
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if (!p)
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return;
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if (i->rtm_tos != 0) /* We don't support TOS */
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{
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DBG("KRT: Ignoring route with TOS %02x\n", i->rtm_tos);
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return;
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}
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if (scan && !new)
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{
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DBG("KRT: Ignoring route deletion\n");
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@ -572,7 +584,7 @@ nl_parse_route(struct krt_proto *p, struct nlmsghdr *h, int scan)
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else
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oif = ~0;
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DBG("Got %I/%d, type=%d, oif=%d\n", dst, i->rtm_dst_len, i->rtm_type, oif);
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DBG("Got %I/%d, type=%d, oif=%d, table=%d, proto=%s\n", dst, i->rtm_dst_len, i->rtm_type, oif, i->rtm_table, p->p.name);
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switch (i->rtm_protocol)
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{
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@ -647,7 +659,7 @@ nl_parse_route(struct krt_proto *p, struct nlmsghdr *h, int scan)
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return;
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}
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if (i->rtm_scope != RT_SCOPE_UNIVERSE) /* FIXME: Other scopes? */
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if (i->rtm_scope != RT_SCOPE_UNIVERSE)
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{
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DBG("KRT: Ignoring route with scope=%d\n", i->rtm_scope);
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return;
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@ -669,14 +681,14 @@ nl_parse_route(struct krt_proto *p, struct nlmsghdr *h, int scan)
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}
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void
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krt_scan_fire(struct krt_proto *p)
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krt_scan_fire(struct krt_proto *p) /* CONFIG_ALL_TABLES_AT_ONCE => p is NULL */
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{
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struct nlmsghdr *h;
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nl_request_dump(RTM_GETROUTE);
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while (h = nl_get_scan())
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if (h->nlmsg_type == RTM_NEWROUTE || h->nlmsg_type == RTM_DELROUTE)
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nl_parse_route(p, h, 1);
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nl_parse_route(h, 1);
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else
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log(L_DEBUG "nl_scan_fire: Unknown packet received (type=%d)", h->nlmsg_type);
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}
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@ -689,14 +701,14 @@ static sock *nl_async_sk; /* BIRD socket for asynchronous notifications */
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static byte *nl_async_rx_buffer; /* Receive buffer */
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static void
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nl_async_msg(struct krt_proto *p, struct nlmsghdr *h)
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nl_async_msg(struct nlmsghdr *h)
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{
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switch (h->nlmsg_type)
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{
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case RTM_NEWROUTE:
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case RTM_DELROUTE:
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DBG("KRT: Received async route notification (%d)\n", h->nlmsg_type);
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nl_parse_route(p, h, 0);
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nl_parse_route(h, 0);
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break;
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case RTM_NEWLINK:
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case RTM_DELLINK:
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@ -716,7 +728,6 @@ nl_async_msg(struct krt_proto *p, struct nlmsghdr *h)
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static int
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nl_async_hook(sock *sk, int size)
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{
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struct krt_proto *p = sk->data;
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struct iovec iov = { nl_async_rx_buffer, NL_RX_SIZE };
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struct sockaddr_nl sa;
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struct msghdr m = { (struct sockaddr *) &sa, sizeof(sa), &iov, 1, NULL, 0, 0 };
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@ -746,7 +757,7 @@ nl_async_hook(sock *sk, int size)
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}
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while (NLMSG_OK(h, len))
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{
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nl_async_msg(p, h);
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nl_async_msg(h);
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h = NLMSG_NEXT(h, len);
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}
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if (len)
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@ -755,7 +766,7 @@ nl_async_hook(sock *sk, int size)
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}
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static void
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nl_open_async(struct krt_proto *p)
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nl_open_async(void)
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{
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sock *sk;
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struct sockaddr_nl sa;
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@ -766,7 +777,7 @@ nl_open_async(struct krt_proto *p)
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fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
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if (fd < 0)
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{
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log(L_ERR "Unable to open secondary rtnetlink socket: %m");
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log(L_ERR "Unable to open asynchronous rtnetlink socket: %m");
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return;
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}
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@ -775,13 +786,12 @@ nl_open_async(struct krt_proto *p)
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sa.nl_groups = RTMGRP_LINK | RTMGRP_IPV4_IFADDR | RTMGRP_IPV4_ROUTE;
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if (bind(fd, (struct sockaddr *) &sa, sizeof(sa)) < 0)
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{
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log(L_ERR "Unable to bind secondary rtnetlink socket: %m");
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log(L_ERR "Unable to bind asynchronous rtnetlink socket: %m");
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return;
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}
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sk = nl_async_sk = sk_new(p->p.pool);
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sk = nl_async_sk = sk_new(krt_pool);
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sk->type = SK_MAGIC;
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sk->data = p;
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sk->rx_hook = nl_async_hook;
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sk->fd = fd;
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if (sk_open(sk))
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@ -795,24 +805,47 @@ nl_open_async(struct krt_proto *p)
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* Interface to the UNIX krt module
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*/
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static u8 nl_cf_table[256 / 8];
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void
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krt_scan_preconfig(struct krt_config *x)
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krt_scan_preconfig(struct config *c)
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{
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bzero(&nl_cf_table, sizeof(nl_cf_table));
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}
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void
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krt_scan_postconfig(struct krt_config *x)
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{
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int id = x->scan.table_id;
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if (nl_cf_table[id/8] & (1 << (id%8)))
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cf_error("Multiple kernel syncers defined for table #%d", id);
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nl_cf_table[id/8] |= (1 << (id%8));
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}
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void
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krt_scan_construct(struct krt_config *x)
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{
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x->scan.async = 1;
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x->scan.table_id = RT_TABLE_MAIN;
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/* FIXME: Use larger defaults for scanning times? */
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}
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void
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krt_scan_start(struct krt_proto *p)
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krt_scan_start(struct krt_proto *p, int first)
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{
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init_list(&p->scan.temp_ifs);
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nl_open();
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if (KRT_CF->scan.async) /* FIXME: Async is for debugging only. Get rid of it some day. */
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nl_open_async(p);
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nl_table_map[KRT_CF->scan.table_id] = p;
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if (first)
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{
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nl_open();
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if (KRT_CF->scan.async) /* FIXME: Async is for debugging only. Get rid of it some day. */
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nl_open_async();
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}
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}
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void
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krt_scan_shutdown(struct krt_proto *p)
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krt_scan_shutdown(struct krt_proto *p, int last)
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{
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}
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|
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@ -205,7 +205,7 @@ krt_if_scan(struct kif_proto *p)
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}
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void
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krt_if_preconfig(struct kif_config *c)
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krt_if_construct(struct kif_config *c)
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{
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}
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|
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@ -92,18 +92,18 @@ krt_set_notify(struct krt_proto *p, net *net, rte *new, rte *old)
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}
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void
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krt_set_start(struct krt_proto *x)
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krt_set_start(struct krt_proto *x, int first)
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{
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if (if_scan_sock < 0)
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bug("krt set: missing socket");
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}
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void
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krt_set_preconfig(struct krt_config *c)
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krt_set_construct(struct krt_config *c)
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{
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}
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void
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||||
krt_set_shutdown(struct krt_proto *x)
|
||||
krt_set_shutdown(struct krt_proto *x, int last)
|
||||
{
|
||||
}
|
||||
|
|
|
|||
|
|
@ -24,14 +24,16 @@ CF_GRAMMAR
|
|||
CF_ADDTO(proto, kern_proto '}')
|
||||
|
||||
kern_proto_start: proto_start KERNEL {
|
||||
#ifndef CONFIG_MULTIPLE_TABLES
|
||||
if (cf_krt)
|
||||
cf_error("Kernel protocol already defined");
|
||||
#endif
|
||||
cf_krt = this_proto = proto_config_new(&proto_unix_kernel, sizeof(struct krt_config));
|
||||
this_proto->preference = 0;
|
||||
THIS_KRT->scan_time = 60;
|
||||
THIS_KRT->learn = THIS_KRT->persist = 0;
|
||||
krt_scan_preconfig(THIS_KRT);
|
||||
krt_set_preconfig(THIS_KRT);
|
||||
krt_scan_construct(THIS_KRT);
|
||||
krt_set_construct(THIS_KRT);
|
||||
}
|
||||
;
|
||||
|
||||
|
|
@ -64,7 +66,7 @@ kif_proto_start: proto_start DEVICE {
|
|||
cf_kif = this_proto = proto_config_new(&proto_unix_iface, sizeof(struct kif_config));
|
||||
this_proto->preference = DEF_PREF_DIRECT;
|
||||
THIS_KIF->scan_time = 60;
|
||||
krt_if_preconfig(THIS_KIF);
|
||||
krt_if_construct(THIS_KIF);
|
||||
}
|
||||
;
|
||||
|
||||
|
|
|
|||
|
|
@ -13,19 +13,47 @@
|
|||
#include "nest/route.h"
|
||||
#include "nest/protocol.h"
|
||||
#include "lib/timer.h"
|
||||
#include "conf/conf.h"
|
||||
|
||||
#include "unix.h"
|
||||
#include "krt.h"
|
||||
|
||||
/*
|
||||
* The whole kernel synchronization is a bit messy and touches some internals
|
||||
* of the routing table engine, because routing table maintenance is a typical
|
||||
* example of the proverbial compatibility between different Unices and we want
|
||||
* to keep the overhead of our krt business as low as possible and avoid maintaining
|
||||
* a local routing table copy.
|
||||
*
|
||||
* The kernel syncer can work in three different modes (according to system config header):
|
||||
* o Single routing table, single krt protocol. [traditional Unix]
|
||||
* o Many routing tables, separate krt protocols for all of them.
|
||||
* o Many routing tables, but every scan includes all tables, so we start
|
||||
* separate krt protocols which cooperate with each other. [Linux 2.2]
|
||||
* In this case, we keep only a single scan timer.
|
||||
*
|
||||
* The hacky bits:
|
||||
* o We use FIB node flags to keep track of route synchronization status.
|
||||
* o When starting up, we cheat by looking if there is another kernel
|
||||
* krt instance to be initialized later and performing table scan
|
||||
* only once for all the instances.
|
||||
* o We attach temporary rte's to routing tables.
|
||||
*
|
||||
* If you are brave enough, continue now. You cannot say you haven't been warned.
|
||||
*/
|
||||
|
||||
static int krt_uptodate(rte *k, rte *e);
|
||||
|
||||
/*
|
||||
* Global resources
|
||||
*/
|
||||
|
||||
pool *krt_pool;
|
||||
|
||||
void
|
||||
krt_io_init(void)
|
||||
{
|
||||
krt_pool = rp_new(&root_pool, "Kernel Syncer");
|
||||
krt_if_io_init();
|
||||
}
|
||||
|
||||
|
|
@ -96,6 +124,12 @@ kif_shutdown(struct proto *P)
|
|||
|
||||
if_start_update(); /* Remove all interfaces */
|
||||
if_end_update();
|
||||
/*
|
||||
* FIXME: Is it really a good idea? It causes routes to be flushed,
|
||||
* but at the same time it avoids sending of these deletions to the kernel,
|
||||
* because krt thinks the kernel itself has already removed the route
|
||||
* when downing the interface. Sad.
|
||||
*/
|
||||
|
||||
return PS_DOWN;
|
||||
}
|
||||
|
|
@ -182,8 +216,6 @@ krt_learn_scan(struct krt_proto *p, rte *e)
|
|||
}
|
||||
}
|
||||
|
||||
/* FIXME: Add dump function */
|
||||
|
||||
static void
|
||||
krt_learn_prune(struct krt_proto *p)
|
||||
{
|
||||
|
|
@ -353,6 +385,12 @@ krt_dump_attrs(rte *e)
|
|||
* Routes
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_ALL_TABLES_AT_ONCE
|
||||
static timer *krt_scan_timer;
|
||||
static int krt_instance_count;
|
||||
static list krt_instance_list;
|
||||
#endif
|
||||
|
||||
static void
|
||||
krt_flush_routes(struct krt_proto *p)
|
||||
{
|
||||
|
|
@ -373,8 +411,6 @@ krt_flush_routes(struct krt_proto *p)
|
|||
FIB_WALK_END;
|
||||
}
|
||||
|
||||
/* FIXME: Synchronization of multiple routing tables? */
|
||||
|
||||
static int
|
||||
krt_uptodate(rte *k, rte *e)
|
||||
{
|
||||
|
|
@ -469,7 +505,7 @@ krt_prune(struct krt_proto *p)
|
|||
struct rtable *t = p->p.table;
|
||||
struct fib_node *f;
|
||||
|
||||
DBG("Pruning routes...\n");
|
||||
DBG("Pruning routes in table %s...\n", t->name);
|
||||
FIB_WALK(&t->fib, f)
|
||||
{
|
||||
net *n = (net *) f;
|
||||
|
|
@ -556,17 +592,29 @@ krt_got_route_async(struct krt_proto *p, rte *e, int new)
|
|||
* Periodic scanning
|
||||
*/
|
||||
|
||||
static timer *krt_scan_timer;
|
||||
|
||||
static void
|
||||
krt_scan(timer *t)
|
||||
{
|
||||
struct krt_proto *p = t->data;
|
||||
struct krt_proto *p;
|
||||
|
||||
kif_force_scan();
|
||||
DBG("KRT: It's route scan time...\n");
|
||||
#ifdef CONFIG_ALL_TABLES_AT_ONCE
|
||||
{
|
||||
void *q;
|
||||
DBG("KRT: It's route scan time...\n");
|
||||
krt_scan_fire(NULL);
|
||||
WALK_LIST(q, krt_instance_list)
|
||||
{
|
||||
p = SKIP_BACK(struct krt_proto, instance_node, q);
|
||||
krt_prune(p);
|
||||
}
|
||||
}
|
||||
#else
|
||||
p = t->data;
|
||||
DBG("KRT: It's route scan time for %s...\n", p->p.name);
|
||||
krt_scan_fire(p);
|
||||
krt_prune(p);
|
||||
#endif
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -595,41 +643,106 @@ krt_notify(struct proto *P, net *net, rte *new, rte *old, struct ea_list *tmpa)
|
|||
|
||||
struct proto_config *cf_krt;
|
||||
|
||||
static void
|
||||
krt_preconfig(struct protocol *P, struct config *c)
|
||||
{
|
||||
krt_scan_preconfig(c);
|
||||
}
|
||||
|
||||
static void
|
||||
krt_postconfig(struct proto_config *C)
|
||||
{
|
||||
struct krt_config *c = (struct krt_config *) C;
|
||||
|
||||
#ifdef CONFIG_ALL_TABLES_AT_ONCE
|
||||
struct krt_config *first = (struct krt_config *) cf_krt;
|
||||
if (first->scan_time != c->scan_time)
|
||||
cf_error("All kernel syncers must use the same table scan interval");
|
||||
#endif
|
||||
|
||||
if (C->table->krt_attached)
|
||||
cf_error("Kernel syncer (%s) already attached to table %s", C->table->krt_attached->name, C->table->name);
|
||||
C->table->krt_attached = C;
|
||||
krt_scan_postconfig(c);
|
||||
}
|
||||
|
||||
static timer *
|
||||
krt_start_timer(struct krt_proto *p)
|
||||
{
|
||||
timer *t;
|
||||
|
||||
t = tm_new(p->krt_pool);
|
||||
t->hook = krt_scan;
|
||||
t->data = p;
|
||||
t->recurrent = KRT_CF->scan_time;
|
||||
tm_start(t, KRT_CF->scan_time);
|
||||
return t;
|
||||
}
|
||||
|
||||
static int
|
||||
krt_start(struct proto *P)
|
||||
{
|
||||
struct krt_proto *p = (struct krt_proto *) P;
|
||||
int first = 1;
|
||||
|
||||
#ifdef CONFIG_ALL_TABLES_AT_ONCE
|
||||
if (!krt_instance_count++)
|
||||
init_list(&krt_instance_list);
|
||||
else
|
||||
first = 0;
|
||||
p->krt_pool = krt_pool;
|
||||
add_tail(&krt_instance_list, &p->instance_node);
|
||||
#else
|
||||
p->krt_pool = P->pool;
|
||||
#endif
|
||||
|
||||
#ifdef KRT_ALLOW_LEARN
|
||||
krt_learn_init(p);
|
||||
#endif
|
||||
|
||||
krt_scan_start(p);
|
||||
krt_set_start(p);
|
||||
krt_scan_start(p, first);
|
||||
krt_set_start(p, first);
|
||||
|
||||
/* Start periodic routing table scanning */
|
||||
krt_scan_timer = tm_new(P->pool);
|
||||
krt_scan_timer->hook = krt_scan;
|
||||
krt_scan_timer->data = p;
|
||||
krt_scan_timer->recurrent = KRT_CF->scan_time;
|
||||
krt_scan(krt_scan_timer);
|
||||
tm_start(krt_scan_timer, KRT_CF->scan_time);
|
||||
#ifdef CONFIG_ALL_TABLES_AT_ONCE
|
||||
if (first)
|
||||
krt_scan_timer = krt_start_timer(p);
|
||||
p->scan_timer = krt_scan_timer;
|
||||
/* If this is the last instance to be initialized, kick the timer */
|
||||
if (!P->proto->startup_counter)
|
||||
krt_scan(p->scan_timer);
|
||||
#else
|
||||
p->scan_timer = krt_start_timer(p);
|
||||
krt_scan(p->scan_timer);
|
||||
#endif
|
||||
|
||||
return PS_UP;
|
||||
}
|
||||
|
||||
int
|
||||
static int
|
||||
krt_shutdown(struct proto *P)
|
||||
{
|
||||
struct krt_proto *p = (struct krt_proto *) P;
|
||||
int last = 1;
|
||||
|
||||
tm_stop(krt_scan_timer);
|
||||
#ifdef CONFIG_ALL_TABLES_AT_ONCE
|
||||
rem_node(&p->instance_node);
|
||||
if (--krt_instance_count)
|
||||
last = 0;
|
||||
else
|
||||
#endif
|
||||
tm_stop(p->scan_timer);
|
||||
|
||||
if (!KRT_CF->persist)
|
||||
krt_flush_routes(p);
|
||||
|
||||
krt_set_shutdown(p);
|
||||
krt_scan_shutdown(p);
|
||||
krt_set_shutdown(p, last);
|
||||
krt_scan_shutdown(p, last);
|
||||
|
||||
#ifdef CONFIG_ALL_TABLES_AT_ONCE
|
||||
if (last)
|
||||
rfree(krt_scan_timer);
|
||||
#endif
|
||||
|
||||
return PS_DOWN;
|
||||
}
|
||||
|
|
@ -646,6 +759,8 @@ krt_init(struct proto_config *c)
|
|||
struct protocol proto_unix_kernel = {
|
||||
name: "Kernel",
|
||||
priority: 80,
|
||||
preconfig: krt_preconfig,
|
||||
postconfig: krt_postconfig,
|
||||
init: krt_init,
|
||||
start: krt_start,
|
||||
shutdown: krt_shutdown,
|
||||
|
|
|
|||
|
|
@ -9,6 +9,7 @@
|
|||
#ifndef _BIRD_KRT_H_
|
||||
#define _BIRD_KRT_H_
|
||||
|
||||
struct config;
|
||||
struct krt_config;
|
||||
struct krt_proto;
|
||||
struct kif_config;
|
||||
|
|
@ -55,10 +56,16 @@ struct krt_proto {
|
|||
struct krt_if_status iface;
|
||||
#ifdef KRT_ALLOW_LEARN
|
||||
struct rtable krt_table; /* Internal table of inherited routes */
|
||||
#endif
|
||||
pool *krt_pool; /* Pool used for common krt data */
|
||||
timer *scan_timer;
|
||||
#ifdef CONFIG_ALL_TABLES_AT_ONCE
|
||||
node instance_node; /* Node in krt instance list */
|
||||
#endif
|
||||
};
|
||||
|
||||
extern struct proto_config *cf_krt;
|
||||
extern pool *krt_pool;
|
||||
|
||||
#define KRT_CF ((struct krt_config *)p->p.cf)
|
||||
|
||||
|
|
@ -90,24 +97,26 @@ extern struct proto_config *cf_kif;
|
|||
|
||||
/* krt-scan.c */
|
||||
|
||||
void krt_scan_preconfig(struct krt_config *);
|
||||
void krt_scan_start(struct krt_proto *);
|
||||
void krt_scan_shutdown(struct krt_proto *);
|
||||
void krt_scan_preconfig(struct config *);
|
||||
void krt_scan_postconfig(struct krt_config *);
|
||||
void krt_scan_construct(struct krt_config *);
|
||||
void krt_scan_start(struct krt_proto *, int);
|
||||
void krt_scan_shutdown(struct krt_proto *, int);
|
||||
|
||||
void krt_scan_fire(struct krt_proto *);
|
||||
|
||||
/* krt-set.c */
|
||||
|
||||
void krt_set_preconfig(struct krt_config *);
|
||||
void krt_set_start(struct krt_proto *);
|
||||
void krt_set_shutdown(struct krt_proto *);
|
||||
void krt_set_construct(struct krt_config *);
|
||||
void krt_set_start(struct krt_proto *, int);
|
||||
void krt_set_shutdown(struct krt_proto *, int);
|
||||
|
||||
int krt_capable(rte *e);
|
||||
void krt_set_notify(struct krt_proto *x, net *net, rte *new, rte *old);
|
||||
|
||||
/* krt-iface.c */
|
||||
|
||||
void krt_if_preconfig(struct kif_config *);
|
||||
void krt_if_construct(struct kif_config *);
|
||||
void krt_if_start(struct kif_proto *);
|
||||
void krt_if_shutdown(struct kif_proto *);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue