First attempt on dynamic reconfiguration. There are still lots of bugs
and problems to solve, but the hardest part works.
This commit is contained in:
Martin Mares
parent
394aec8fdd
commit
50fe90edf3
13 changed files with 434 additions and 90 deletions
17
TODO
17
TODO
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@ -26,19 +26,21 @@ Core
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- config: executable config files
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- config: when parsing prefix, check zero bits
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- config: reconfiguration
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- config: reconfiguration of filters
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- config: useless rules when protocols disabled
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- config: remove protocol startup priority hacks?
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- config: better datetime format
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- config: treat shutdown as reconfiguration to null config? (what about config of logging etc. ?)
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- config: fix auto_router_id
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- krt: rescan interfaces when route addition fails?
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- krt: does PERSIST mode have any sense if kernel syncer is shut down as last?
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- krt: check behaviour wrt. reconfiguration of routing tables
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- tagging of external routes?
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- io: use poll if available
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- port to FreeBSD
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Commands
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~~~~~~~~
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shutdown # order system shutdown
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@ -50,6 +52,17 @@ show <name> # show everything you know about symbol <name>
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symbols
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(disable|enable|restart) <protocol> # or ALL?
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- showing of routing table as seen by given protocol
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- showing of deleted routing tables and filters
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Roadmap
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~~~~~~~
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- Dynamic reconfiguration
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- Allocators and data structures
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- Client
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- Remaining bits of IPv6 support (radvd)
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- RIPv6
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- BGP?
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- Logging and debugging messages
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Client
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~~~~~~
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121
conf/conf.c
121
conf/conf.c
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@ -1,7 +1,7 @@
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/*
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* BIRD Internet Routing Daemon -- Configuration File Handling
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*
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* (c) 1999 Martin Mares <mj@ucw.cz>
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* (c) 1998--2000 Martin Mares <mj@ucw.cz>
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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@ -9,18 +9,22 @@
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#include <setjmp.h>
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#include <stdarg.h>
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#define LOCAL_DEBUG
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#include "nest/bird.h"
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#include "nest/route.h"
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#include "nest/protocol.h"
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#include "nest/iface.h"
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#include "lib/resource.h"
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#include "lib/string.h"
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#include "lib/event.h"
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#include "conf/conf.h"
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#include "filter/filter.h"
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static jmp_buf conf_jmpbuf;
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struct config *config, *new_config;
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struct config *config, *new_config, *old_config, *future_config;
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static event *config_event;
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struct config *
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config_alloc(byte *name)
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@ -77,12 +81,117 @@ config_free(struct config *c)
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}
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void
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config_add_obstacle(struct config *c)
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{
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DBG("+++ adding obstacle %d\n", c->obstacle_count);
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c->obstacle_count++;
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}
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void
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config_del_obstacle(struct config *c)
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{
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DBG("+++ deleting obstacle %d\n", c->obstacle_count);
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c->obstacle_count--;
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if (!c->obstacle_count)
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{
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ASSERT(config_event);
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ev_schedule(config_event);
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}
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}
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static int
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global_commit(struct config *c, struct config *old)
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{
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if (!old)
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return 0;
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if (c->router_id != old->router_id)
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return 1;
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return 0;
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}
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static int
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config_do_commit(struct config *c)
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{
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int force_restart, nobs;
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DBG("do_commit\n");
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old_config = config;
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config = c;
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if (old_config)
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old_config->obstacle_count++;
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DBG("sysdep_commit\n");
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force_restart = sysdep_commit(c, old_config);
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DBG("global_commit\n");
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force_restart |= global_commit(c, old_config);
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DBG("rt_commit\n");
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rt_commit(c, old_config);
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DBG("protos_commit\n");
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protos_commit(c, old_config, force_restart);
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new_config = NULL; /* Just to be sure nobody uses that now */
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if (old_config)
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nobs = --old_config->obstacle_count;
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else
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nobs = 0;
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DBG("do_commit finished with %d obstacles remaining\n", nobs);
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return !nobs;
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}
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static int
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config_done(void *unused)
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{
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struct config *c;
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DBG("config_done\n");
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for(;;)
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{
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log(L_INFO "Reconfigured");
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if (old_config)
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{
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config_free(old_config);
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old_config = NULL;
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}
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if (!future_config)
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break;
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c = future_config;
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future_config = NULL;
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log(L_INFO "Switching to queued configuration...");
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if (!config_do_commit(c))
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break;
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}
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return 0;
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}
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int
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config_commit(struct config *c)
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{
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config = c;
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sysdep_commit(c);
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rt_commit(c);
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protos_commit(c);
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if (!config) /* First-time configuration */
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{
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config_do_commit(c);
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return CONF_DONE;
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}
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if (old_config) /* Reconfiguration already in progress */
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{
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if (future_config)
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{
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log(L_INFO "Queueing new configuration, ignoring the one already queued");
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config_free(future_config);
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}
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else
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log(L_INFO "Queued new configuration");
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future_config = c;
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return CONF_QUEUED;
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}
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if (config_do_commit(c))
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{
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config_done(NULL);
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return CONF_DONE;
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}
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if (!config_event)
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{
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config_event = ev_new(&root_pool);
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config_event->hook = config_done;
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}
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return CONF_PROGRESS;
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}
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void
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18
conf/conf.h
18
conf/conf.h
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@ -1,7 +1,7 @@
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/*
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* BIRD Internet Routing Daemon -- Configuration File Handling
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*
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* (c) 1998--1999 Martin Mares <mj@ucw.cz>
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* (c) 1998--2000 Martin Mares <mj@ucw.cz>
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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@ -26,17 +26,27 @@ struct config {
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char *file_name; /* Name of configuration file */
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struct symbol **sym_hash; /* Lexer: symbol hash table */
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struct symbol **sym_fallback; /* Lexer: fallback symbol hash table */
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int obstacle_count; /* Number of items blocking freeing of this config */
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};
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extern struct config *config, *new_config;
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/* Please don't use these variables in protocols. Use proto_config->global instead. */
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extern struct config *config; /* Currently active configuration */
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extern struct config *new_config; /* Configuration being parsed */
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extern struct config *old_config; /* Old configuration when reconfiguration is in progress */
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extern struct config *future_config; /* New config held here if recon requested during recon */
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struct config *config_alloc(byte *name);
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int config_parse(struct config *);
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int cli_parse(struct config *);
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void config_free(struct config *);
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void config_commit(struct config *);
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int config_commit(struct config *);
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void cf_error(char *msg, ...) NORET;
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void config_add_obstacle(struct config *);
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void config_del_obstacle(struct config *);
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#define CONF_DONE 0
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#define CONF_PROGRESS 1
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#define CONF_QUEUED 2
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/* Pools */
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@ -87,6 +97,6 @@ int cf_parse(void);
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/* Sysdep hooks */
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void sysdep_preconfig(struct config *);
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void sysdep_commit(struct config *);
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int sysdep_commit(struct config *, struct config *);
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#endif
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@ -10,6 +10,7 @@ Reply codes of BIRD command-line interface
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0000 OK
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0001 Welcome
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0002 Reading configuration
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1000 BIRD version
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1001 Interface list
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@ -24,6 +25,7 @@ Reply codes of BIRD command-line interface
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8000 Reply too long
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8001 Route not found
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8002 Configuration file error
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9000 Command too long
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9001 Parse error
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133
nest/proto.c
133
nest/proto.c
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@ -1,7 +1,7 @@
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/*
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* BIRD -- Protocols
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*
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* (c) 1998--1999 Martin Mares <mj@ucw.cz>
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* (c) 1998--2000 Martin Mares <mj@ucw.cz>
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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@ -38,6 +38,7 @@ static char *p_states[] = { "DOWN", "START", "UP", "STOP" };
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static char *c_states[] = { "HUNGRY", "FEEDING", "HAPPY", "FLUSHING" };
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static int proto_flush_all(void *);
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static void proto_rethink_goal(struct proto *p);
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static void
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proto_enqueue(list *l, struct proto *p)
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@ -103,6 +104,7 @@ proto_init_instance(struct proto *p)
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p->pool = rp_new(proto_pool, p->proto->name);
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p->attn = ev_new(p->pool);
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p->attn->data = p;
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rt_lock_table(p->table);
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}
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struct announce_hook *
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@ -185,19 +187,12 @@ protos_postconfig(struct config *c)
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debug("\n");
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}
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void
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protos_commit(struct config *c)
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static struct proto *
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proto_init(struct proto_config *c)
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{
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struct proto_config *x;
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struct protocol *p;
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struct proto *q;
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struct protocol *p = c->protocol;
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struct proto *q = p->init(c);
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debug("Protocol commit:");
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WALK_LIST(x, c->protos)
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{
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debug(" %s", x->name);
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p = x->protocol;
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q = p->init(x);
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q->proto_state = PS_DOWN;
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q->core_state = FS_HUNGRY;
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proto_enqueue(&initial_proto_list, q);
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@ -210,17 +205,100 @@ protos_commit(struct config *c)
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*/
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if (!q->disabled)
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p->startup_counter++;
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return q;
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}
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void
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protos_commit(struct config *new, struct config *old, int force_reconfig)
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{
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struct proto_config *oc, *nc;
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struct proto *p, *n;
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DBG("protos_commit:\n");
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if (old)
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{
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WALK_LIST(oc, old->protos)
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{
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struct proto *p = oc->proto;
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struct symbol *sym = cf_find_symbol(oc->name);
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if (sym && sym->class == SYM_PROTO)
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{
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/* Found match, let's check if we can smoothly switch to new configuration */
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nc = sym->def;
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if (!force_reconfig
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&& nc->protocol == oc->protocol
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&& nc->preference == oc->preference
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&& nc->disabled == oc->disabled
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&& nc->table->table == oc->table->table
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&& nc->in_filter == oc->in_filter
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&& nc->out_filter == oc->out_filter
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&& p->proto_state != PS_DOWN)
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{
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/* Generic attributes match, try converting them and then ask the protocol */
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p->debug = nc->debug;
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if (p->proto->reconfigure(p, nc))
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{
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DBG("\t%s: same\n", oc->name);
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p->cf = nc;
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nc->proto = p;
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continue;
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}
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debug("\n");
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}
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/* Unsuccessful, force reconfig */
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DBG("\t%s: power cycling\n", oc->name);
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p->cf_new = nc;
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}
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else
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{
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DBG("\t%s: deleting\n", oc->name);
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p->cf_new = NULL;
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}
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p->reconfiguring = 1;
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config_add_obstacle(old);
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proto_rethink_goal(p);
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}
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}
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WALK_LIST(nc, new->protos)
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if (!nc->proto)
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{
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DBG("\t%s: adding\n", nc->name);
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proto_init(nc);
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}
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DBG("\tdone\n");
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DBG("Protocol start\n");
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WALK_LIST_DELSAFE(p, n, initial_proto_list)
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proto_rethink_goal(p);
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}
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static void
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proto_rethink_goal(struct proto *p)
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{
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struct protocol *q = p->proto;
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struct protocol *q;
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if (p->reconfiguring && p->core_state == FS_HUNGRY && p->proto_state == PS_DOWN)
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{
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struct proto_config *nc = p->cf_new;
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DBG("%s has shut down for reconfiguration\n", p->name);
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config_del_obstacle(p->cf->global);
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rem_node(&p->n);
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mb_free(p);
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if (!nc)
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return;
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p = proto_init(nc); /* FIXME: What about protocol priorities??? */
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}
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/* Determine what state we want to reach */
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if (p->disabled || shutting_down || p->reconfiguring)
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p->core_goal = FS_HUNGRY;
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else
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p->core_goal = FS_HAPPY;
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if (p->core_state == p->core_goal)
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return;
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q = p->proto;
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if (p->core_goal == FS_HAPPY) /* Going up */
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{
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if (p->core_state == FS_HUNGRY && p->proto_state == PS_DOWN)
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@ -242,25 +320,6 @@ proto_rethink_goal(struct proto *p)
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}
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}
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static void
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proto_set_goal(struct proto *p, unsigned goal)
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{
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if (p->disabled || shutting_down)
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goal = FS_HUNGRY;
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p->core_goal = goal;
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proto_rethink_goal(p);
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}
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void
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protos_start(void)
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{
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struct proto *p, *n;
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debug("Protocol start\n");
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WALK_LIST_DELSAFE(p, n, initial_proto_list)
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proto_set_goal(p, FS_HAPPY);
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}
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void
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protos_shutdown(void)
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{
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@ -271,12 +330,12 @@ protos_shutdown(void)
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if (p->core_state != FS_HUNGRY || p->proto_state != PS_DOWN)
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{
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proto_shutdown_counter++;
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proto_set_goal(p, FS_HUNGRY);
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proto_rethink_goal(p);
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}
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WALK_LIST_BACKWARDS_DELSAFE(p, n, proto_list)
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{
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proto_shutdown_counter++;
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proto_set_goal(p, FS_HUNGRY);
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proto_rethink_goal(p);
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}
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}
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@ -329,6 +388,7 @@ static void
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proto_fell_down(struct proto *p)
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{
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DBG("Protocol %s down\n", p->name);
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rt_unlock_table(p->table);
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if (!--proto_shutdown_counter)
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protos_shutdown_notify();
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proto_rethink_goal(p);
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@ -363,7 +423,10 @@ proto_notify_state(struct proto *p, unsigned ps)
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{
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case PS_DOWN:
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if (cs == FS_HUNGRY) /* Shutdown finished */
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{
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proto_fell_down(p);
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return; /* The protocol might have ceased to exist */
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}
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else if (cs == FS_FLUSHING) /* Still flushing... */
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;
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else /* Need to start flushing */
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@ -41,7 +41,7 @@ struct protocol {
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void (*preconfig)(struct protocol *, struct config *); /* Just before configuring */
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void (*postconfig)(struct proto_config *); /* After configuring each instance */
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struct proto * (*init)(struct proto_config *); /* Create new instance */
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int (*reconfigure)(struct proto *, struct proto_config *); /* Try to reconfigure instance */
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int (*reconfigure)(struct proto *, struct proto_config *); /* Try to reconfigure instance, returns success */
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void (*dump)(struct proto *); /* Debugging dump */
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void (*dump_attrs)(struct rte *); /* Dump protocol-dependent attributes */
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int (*start)(struct proto *); /* Start the instance */
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@ -54,8 +54,7 @@ struct protocol {
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void protos_build(void);
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void protos_preconfig(struct config *);
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void protos_postconfig(struct config *);
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void protos_commit(struct config *);
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void protos_start(void);
|
||||
void protos_commit(struct config *new, struct config *old, int force_restart);
|
||||
void protos_dump_all(void);
|
||||
void protos_shutdown(void);
|
||||
|
||||
|
|
@ -92,6 +91,7 @@ struct proto {
|
|||
node n;
|
||||
struct protocol *proto; /* Protocol */
|
||||
struct proto_config *cf; /* Configuration data */
|
||||
struct proto_config *cf_new; /* Configuration we want to switch to after shutdown (NULL=delete) */
|
||||
pool *pool; /* Pool containing local objects */
|
||||
struct event *attn; /* "Pay attention" event */
|
||||
|
||||
|
|
@ -103,6 +103,7 @@ struct proto {
|
|||
unsigned proto_state; /* Protocol state machine (see below) */
|
||||
unsigned core_state; /* Core state machine (see below) */
|
||||
unsigned core_goal; /* State we want to reach (see below) */
|
||||
unsigned reconfiguring; /* We're shutting down due to reconfiguration */
|
||||
bird_clock_t last_state_change; /* Time of last state transition */
|
||||
|
||||
/*
|
||||
|
|
|
|||
11
nest/route.h
11
nest/route.h
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* BIRD Internet Routing Daemon -- Routing Table
|
||||
*
|
||||
* (c) 1998--1999 Martin Mares <mj@ucw.cz>
|
||||
* (c) 1998--2000 Martin Mares <mj@ucw.cz>
|
||||
*
|
||||
* Can be freely distributed and used under the terms of the GNU GPL.
|
||||
*/
|
||||
|
|
@ -121,6 +121,11 @@ typedef struct rtable {
|
|||
char *name; /* Name of this table */
|
||||
list hooks; /* List of announcement hooks */
|
||||
int pipe_busy; /* Pipe loop detection */
|
||||
int use_count; /* Number of protocols using this table */
|
||||
struct config *deleted; /* Table doesn't exist in current configuration,
|
||||
* delete as soon as use_count becomes 0 and remove
|
||||
* obstacle from this routing table.
|
||||
*/
|
||||
} rtable;
|
||||
|
||||
typedef struct network {
|
||||
|
|
@ -171,7 +176,9 @@ struct config;
|
|||
|
||||
void rt_init(void);
|
||||
void rt_preconfig(struct config *);
|
||||
void rt_commit(struct config *);
|
||||
void rt_commit(struct config *new, struct config *old);
|
||||
void rt_lock_table(rtable *);
|
||||
void rt_unlock_table(rtable *);
|
||||
void rt_setup(pool *, rtable *, char *);
|
||||
static inline net *net_find(rtable *tab, ip_addr addr, unsigned len) { return (net *) fib_find(&tab->fib, &addr, len); }
|
||||
static inline net *net_get(rtable *tab, ip_addr addr, unsigned len) { return (net *) fib_get(&tab->fib, &addr, len); }
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* BIRD -- Routing Table
|
||||
*
|
||||
* (c) 1998--1999 Martin Mares <mj@ucw.cz>
|
||||
* (c) 1998--2000 Martin Mares <mj@ucw.cz>
|
||||
*
|
||||
* Can be freely distributed and used under the terms of the GNU GPL.
|
||||
*/
|
||||
|
|
@ -480,17 +480,68 @@ rt_preconfig(struct config *c)
|
|||
}
|
||||
|
||||
void
|
||||
rt_commit(struct config *c)
|
||||
rt_lock_table(rtable *r)
|
||||
{
|
||||
struct rtable_config *r;
|
||||
r->use_count++;
|
||||
}
|
||||
|
||||
WALK_LIST(r, c->tables)
|
||||
void
|
||||
rt_unlock_table(rtable *r)
|
||||
{
|
||||
if (!--r->use_count && r->deleted)
|
||||
{
|
||||
struct config *conf = r->deleted;
|
||||
DBG("Deleting routing table %s\n", r->name);
|
||||
rem_node(&r->n);
|
||||
fib_free(&r->fib);
|
||||
mb_free(r);
|
||||
config_del_obstacle(conf);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
rt_commit(struct config *new, struct config *old)
|
||||
{
|
||||
struct rtable_config *o, *r;
|
||||
|
||||
DBG("rt_commit:\n");
|
||||
if (old)
|
||||
{
|
||||
WALK_LIST(o, old->tables)
|
||||
{
|
||||
rtable *ot = o->table;
|
||||
if (!ot->deleted)
|
||||
{
|
||||
struct symbol *sym = cf_find_symbol(o->name);
|
||||
if (sym && sym->class == SYM_TABLE)
|
||||
{
|
||||
DBG("\t%s: same\n", o->name);
|
||||
r = sym->def;
|
||||
r->table = ot;
|
||||
ot->name = r->name;
|
||||
}
|
||||
else
|
||||
{
|
||||
DBG("\t%s: deleted", o->name);
|
||||
ot->deleted = old;
|
||||
config_add_obstacle(old);
|
||||
rt_lock_table(ot);
|
||||
rt_unlock_table(ot);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
WALK_LIST(r, new->tables)
|
||||
if (!r->table)
|
||||
{
|
||||
rtable *t = mb_alloc(rt_table_pool, sizeof(struct rtable));
|
||||
DBG("\t%s: created\n", r->name);
|
||||
rt_setup(rt_table_pool, t, r->name);
|
||||
add_tail(&routing_tables, &t->n);
|
||||
r->table = t;
|
||||
}
|
||||
DBG("\tdone\n");
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* BIRD -- Table-to-Table Routing Protocol a.k.a Pipe
|
||||
*
|
||||
* (c) 1999 Martin Mares <mj@ucw.cz>
|
||||
* (c) 1999--2000 Martin Mares <mj@ucw.cz>
|
||||
*
|
||||
* Can be freely distributed and used under the terms of the GNU GPL.
|
||||
*/
|
||||
|
|
@ -106,10 +106,20 @@ pipe_start(struct proto *P)
|
|||
*/
|
||||
a = proto_add_announce_hook(P, p->peer);
|
||||
a->proto = &ph->p;
|
||||
rt_lock_table(p->peer);
|
||||
|
||||
return PS_UP;
|
||||
}
|
||||
|
||||
static int
|
||||
pipe_shutdown(struct proto *P)
|
||||
{
|
||||
struct pipe_proto *p = (struct pipe_proto *) P;
|
||||
|
||||
rt_unlock_table(p->peer);
|
||||
return PS_DOWN;
|
||||
}
|
||||
|
||||
static struct proto *
|
||||
pipe_init(struct proto_config *C)
|
||||
{
|
||||
|
|
@ -147,5 +157,6 @@ struct protocol proto_pipe = {
|
|||
postconfig: pipe_postconfig,
|
||||
init: pipe_init,
|
||||
start: pipe_start,
|
||||
shutdown: pipe_shutdown,
|
||||
get_status: pipe_get_status,
|
||||
};
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* BIRD -- UNIX Configuration
|
||||
*
|
||||
* (c) 1999 Martin Mares <mj@ucw.cz>
|
||||
* (c) 1999--2000 Martin Mares <mj@ucw.cz>
|
||||
*
|
||||
* Can be freely distributed and used under the terms of the GNU GPL.
|
||||
*/
|
||||
|
|
@ -16,6 +16,7 @@ CF_KEYWORDS(LOG, SYSLOG, ALL, DEBUG, TRACE, INFO, REMOTE, WARNING, ERROR, AUTH,
|
|||
|
||||
%type <i> log_mask log_mask_list log_cat
|
||||
%type <g> log_file
|
||||
%type <t> cfg_name
|
||||
|
||||
CF_GRAMMAR
|
||||
|
||||
|
|
@ -61,6 +62,16 @@ log_cat:
|
|||
| BUG { $$ = L_BUG[0]; }
|
||||
;
|
||||
|
||||
/* Unix specific commands */
|
||||
|
||||
CF_CLI(CONFIGURE, cfg_name, [<file>], [[Reload configuration]])
|
||||
{ cmd_reconfig($2); } ;
|
||||
|
||||
cfg_name:
|
||||
/* empty */ { $$ = NULL; }
|
||||
| TEXT
|
||||
;
|
||||
|
||||
CF_CODE
|
||||
|
||||
CF_END
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* BIRD -- UNIX Kernel Synchronization
|
||||
*
|
||||
* (c) 1998--1999 Martin Mares <mj@ucw.cz>
|
||||
* (c) 1998--2000 Martin Mares <mj@ucw.cz>
|
||||
*
|
||||
* Can be freely distributed and used under the terms of the GNU GPL.
|
||||
*/
|
||||
|
|
@ -67,6 +67,12 @@ static struct kif_proto *kif_proto;
|
|||
static timer *kif_scan_timer;
|
||||
static bird_clock_t kif_last_shot;
|
||||
|
||||
static void
|
||||
kif_preconfig(struct protocol *P, struct config *c)
|
||||
{
|
||||
cf_kif = NULL;
|
||||
}
|
||||
|
||||
static void
|
||||
kif_scan(timer *t)
|
||||
{
|
||||
|
|
@ -137,6 +143,7 @@ kif_shutdown(struct proto *P)
|
|||
struct protocol proto_unix_iface = {
|
||||
name: "Device",
|
||||
priority: 100,
|
||||
preconfig: kif_preconfig,
|
||||
init: kif_init,
|
||||
start: kif_start,
|
||||
shutdown: kif_shutdown,
|
||||
|
|
@ -646,6 +653,7 @@ struct proto_config *cf_krt;
|
|||
static void
|
||||
krt_preconfig(struct protocol *P, struct config *c)
|
||||
{
|
||||
cf_krt = NULL;
|
||||
krt_scan_preconfig(c);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* BIRD Internet Routing Daemon -- Unix Entry Point
|
||||
*
|
||||
* (c) 1998--1999 Martin Mares <mj@ucw.cz>
|
||||
* (c) 1998--2000 Martin Mares <mj@ucw.cz>
|
||||
*
|
||||
* Can be freely distributed and used under the terms of the GNU GPL.
|
||||
*/
|
||||
|
|
@ -74,30 +74,89 @@ sysdep_preconfig(struct config *c)
|
|||
init_list(&c->logfiles);
|
||||
}
|
||||
|
||||
void
|
||||
sysdep_commit(struct config *c)
|
||||
int
|
||||
sysdep_commit(struct config *new, struct config *old)
|
||||
{
|
||||
log_switch(&c->logfiles);
|
||||
log_switch(&new->logfiles);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
unix_read_config(struct config **cp, char *name)
|
||||
{
|
||||
struct config *conf = config_alloc(name);
|
||||
|
||||
*cp = conf;
|
||||
conf_fd = open(name, O_RDONLY);
|
||||
if (conf_fd < 0)
|
||||
return 0;
|
||||
cf_read_hook = cf_read;
|
||||
return config_parse(conf);
|
||||
}
|
||||
|
||||
static void
|
||||
read_config(void)
|
||||
{
|
||||
struct config *conf = config_alloc(config_name);
|
||||
struct config *conf;
|
||||
|
||||
conf_fd = open(config_name, O_RDONLY);
|
||||
if (conf_fd < 0)
|
||||
die("Unable to open configuration file %s: %m", config_name);
|
||||
cf_read_hook = cf_read;
|
||||
if (!config_parse(conf))
|
||||
if (!unix_read_config(&conf, config_name))
|
||||
{
|
||||
if (conf->err_msg)
|
||||
die("%s, line %d: %s", config_name, conf->err_lino, conf->err_msg);
|
||||
else
|
||||
die("Unable to open configuration file %s: %m", config_name);
|
||||
}
|
||||
config_commit(conf);
|
||||
}
|
||||
|
||||
void
|
||||
async_config(void)
|
||||
{
|
||||
debug("Asynchronous reconfigurations are not supported in demo version\n");
|
||||
struct config *conf;
|
||||
|
||||
log(L_INFO "Reconfiguration requested by SIGHUP");
|
||||
if (!unix_read_config(&conf, config_name))
|
||||
{
|
||||
if (conf->err_msg)
|
||||
log(L_ERR "%s, line %d: %s", config_name, conf->err_lino, conf->err_msg);
|
||||
else
|
||||
log(L_ERR "Unable to open configuration file %s: %m", config_name);
|
||||
config_free(conf);
|
||||
}
|
||||
else
|
||||
config_commit(conf);
|
||||
}
|
||||
|
||||
void
|
||||
cmd_reconfig(char *name)
|
||||
{
|
||||
struct config *conf;
|
||||
|
||||
if (!name)
|
||||
name = config_name;
|
||||
cli_msg(-2, "Reading configuration from %s", name);
|
||||
if (!unix_read_config(&conf, name))
|
||||
{
|
||||
if (conf->err_msg)
|
||||
cli_msg(8002, "%s, line %d: %s", name, conf->err_lino, conf->err_msg);
|
||||
else
|
||||
cli_msg(8002, "%s: %m", name);
|
||||
config_free(conf);
|
||||
}
|
||||
else
|
||||
{
|
||||
switch (config_commit(conf))
|
||||
{
|
||||
case CONF_DONE:
|
||||
cli_msg(3, "Reconfigured.");
|
||||
break;
|
||||
case CONF_PROGRESS:
|
||||
cli_msg(4, "Reconfiguration in progress.");
|
||||
break;
|
||||
default:
|
||||
cli_msg(5, "Reconfiguration already in progress, queueing new config");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -350,8 +409,6 @@ main(int argc, char **argv)
|
|||
|
||||
cli_init_unix();
|
||||
|
||||
protos_start();
|
||||
|
||||
ev_run_list(&global_event_list);
|
||||
async_dump();
|
||||
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* BIRD -- Declarations Common to Unix Port
|
||||
*
|
||||
* (c) 1998 Martin Mares <mj@ucw.cz>
|
||||
* (c) 1998--2000 Martin Mares <mj@ucw.cz>
|
||||
*
|
||||
* Can be freely distributed and used under the terms of the GNU GPL.
|
||||
*/
|
||||
|
|
@ -16,6 +16,7 @@ struct pool;
|
|||
void async_config(void);
|
||||
void async_dump(void);
|
||||
void async_shutdown(void);
|
||||
void cmd_reconfig(char *name);
|
||||
|
||||
/* io.c */
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue