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2011-09-27delete CVS keywordsDenis Ovsienko
2011-03-21lib: zlog should clean up its memoryTom Goff
* log.c: (closezlog) Also free the dynamically allocated filename when a log is closed.
2009-07-19[bgpd] Stability fixes including bugs 397, 492Chris Caputo
I've spent the last several weeks working on stability fixes to bgpd. These patches fix all of the numerous crashes, assertion failures, memory leaks and memory stomping I could find. Valgrind was used extensively. Added new function bgp_exit() to help catch problems. If "debug bgp" is configured and bgpd exits with status of 0, statistics on remaining lib/memory.c allocations are printed to stderr. It is my hope that other developers will use this to stay on top of memory issues. Example questionable exit: bgpd: memstats: Current memory utilization in module LIB: bgpd: memstats: Link List : 6 bgpd: memstats: Link Node : 5 bgpd: memstats: Hash : 8 bgpd: memstats: Hash Bucket : 2 bgpd: memstats: Hash Index : 8 bgpd: memstats: Work queue : 3 bgpd: memstats: Work queue item : 2 bgpd: memstats: Work queue name string : 3 bgpd: memstats: Current memory utilization in module BGP: bgpd: memstats: BGP instance : 1 bgpd: memstats: BGP peer : 1 bgpd: memstats: BGP peer hostname : 1 bgpd: memstats: BGP attribute : 1 bgpd: memstats: BGP extra attributes : 1 bgpd: memstats: BGP aspath : 1 bgpd: memstats: BGP aspath str : 1 bgpd: memstats: BGP table : 24 bgpd: memstats: BGP node : 1 bgpd: memstats: BGP route : 1 bgpd: memstats: BGP synchronise : 8 bgpd: memstats: BGP Process queue : 1 bgpd: memstats: BGP node clear queue : 1 bgpd: memstats: NOTE: If configuration exists, utilization may be expected. Example clean exit: bgpd: memstats: No remaining tracked memory utilization. This patch fixes bug #397: "Invalid free in bgp_announce_check()". This patch fixes bug #492: "SIGBUS in bgpd/bgp_route.c: bgp_clear_route_node()". My apologies for not separating out these changes into individual patches. The complexity of doing so boggled what is left of my brain. I hope this is all still useful to the community. This code has been production tested, in non-route-server-client mode, on a linux 32-bit box and a 64-bit box. Release/reset functions, used by bgp_exit(), added to: bgpd/bgp_attr.c,h bgpd/bgp_community.c,h bgpd/bgp_dump.c,h bgpd/bgp_ecommunity.c,h bgpd/bgp_filter.c,h bgpd/bgp_nexthop.c,h bgpd/bgp_route.c,h lib/routemap.c,h File by file analysis: * bgpd/bgp_aspath.c: Prevent re-use of ashash after it is released. * bgpd/bgp_attr.c: #if removed uncalled cluster_dup(). * bgpd/bgp_clist.c,h: Allow community_list_terminate() to be called from bgp_exit(). * bgpd/bgp_filter.c: Fix aslist->name use without allocation check, and also fix memory leak. * bgpd/bgp_main.c: Created bgp_exit() exit routine. This function frees allocations made as part of bgpd initialization and, to some extent, configuration. If "debug bgp" is configured, memory stats are printed as described above. * bgpd/bgp_nexthop.c: zclient_new() already allocates stream for ibuf/obuf, so bgp_scan_init() shouldn't do it too. Also, made it so zlookup is global so bgp_exit() can use it. * bgpd/bgp_packet.c: bgp_capability_msg_parse() call to bgp_clear_route() adjusted to use new BGP_CLEAR_ROUTE_NORMAL flag. * bgpd/bgp_route.h: Correct reference counter "lock" to be signed. bgp_clear_route() now accepts a bgp_clear_route_type of either BGP_CLEAR_ROUTE_NORMAL or BGP_CLEAR_ROUTE_MY_RSCLIENT. * bgpd/bgp_route.c: - bgp_process_rsclient(): attr was being zero'ed and then bgp_attr_extra_free() was being called with it, even though it was never filled with valid data. - bgp_process_rsclient(): Make sure rsclient->group is not NULL before use. - bgp_processq_del(): Add call to bgp_table_unlock(). - bgp_process(): Add call to bgp_table_lock(). - bgp_update_rsclient(): memset clearing of new_attr not needed since declarationw with "= { 0 }" does it. memset was already commented out. - bgp_update_rsclient(): Fix screwed up misleading indentation. - bgp_withdraw_rsclient(): Fix screwed up misleading indentation. - bgp_clear_route_node(): Support BGP_CLEAR_ROUTE_MY_RSCLIENT. - bgp_clear_node_queue_del(): Add call to bgp_table_unlock() and also free struct bgp_clear_node_queue used for work item. - bgp_clear_node_complete(): Do peer_unlock() after BGP_EVENT_ADD() in case peer is released by peer_unlock() call. - bgp_clear_route_table(): Support BGP_CLEAR_ROUTE_MY_RSCLIENT. Use struct bgp_clear_node_queue to supply data to worker. Add call to bgp_table_lock(). - bgp_clear_route(): Add support for BGP_CLEAR_ROUTE_NORMAL or BGP_CLEAR_ROUTE_MY_RSCLIENT. - bgp_clear_route_all(): Use BGP_CLEAR_ROUTE_NORMAL. Bug 397 fixes: - bgp_default_originate() - bgp_announce_table() * bgpd/bgp_table.h: - struct bgp_table: Added reference count. Changed type of owner to be "struct peer *" rather than "void *". - struct bgp_node: Correct reference counter "lock" to be signed. * bgpd/bgp_table.c: - Added bgp_table reference counting. - bgp_table_free(): Fixed cleanup code. Call peer_unlock() on owner if set. - bgp_unlock_node(): Added assertion. - bgp_node_get(): Added call to bgp_lock_node() to code path that it was missing from. * bgpd/bgp_vty.c: - peer_rsclient_set_vty(): Call peer_lock() as part of peer assignment to owner. Handle failure gracefully. - peer_rsclient_unset_vty(): Add call to bgp_clear_route() with BGP_CLEAR_ROUTE_MY_RSCLIENT purpose. * bgpd/bgp_zebra.c: Made it so zclient is global so bgp_exit() can use it. * bgpd/bgpd.c: - peer_lock(): Allow to be called when status is "Deleted". - peer_deactivate(): Supply BGP_CLEAR_ROUTE_NORMAL purpose to bgp_clear_route() call. - peer_delete(): Common variable listnode pn. Fix bug in which rsclient was only dealt with if not part of a peer group. Call bgp_clear_route() for rsclient, if appropriate, and do so with BGP_CLEAR_ROUTE_MY_RSCLIENT purpose. - peer_group_get(): Use XSTRDUP() instead of strdup() for conf->host. - peer_group_bind(): Call bgp_clear_route() for rsclient, and do so with BGP_CLEAR_ROUTE_MY_RSCLIENT purpose. - bgp_create(): Use XSTRDUP() instead of strdup() for peer_self->host. - bgp_delete(): Delete peers before groups, rather than after. And then rather than deleting rsclients, verify that there are none at this point. - bgp_unlock(): Add assertion. - bgp_free(): Call bgp_table_finish() rather than doing XFREE() itself. * lib/command.c,h: Compiler warning fixes. Add cmd_terminate(). Fixed massive leak in install_element() in which cmd_make_descvec() was being called more than once for the same cmd->strvec/string/doc. * lib/log.c: Make closezlog() check fp before calling fclose(). * lib/memory.c: Catch when alloc count goes negative by using signed counts. Correct #endif comment. Add log_memstats_stderr(). * lib/memory.h: Add log_memstats_stderr(). * lib/thread.c: thread->funcname was being accessed in thread_call() after it had been freed. Rearranged things so that thread_call() frees funcname. Also made it so thread_master_free() cleans up cpu_record. * lib/vty.c,h: Use global command_cr. Add vty_terminate(). * lib/zclient.c,h: Re-enable zclient_free().
2009-06-18[cleanup] Allow message tables to be constantStephen Hemminger
Avoid bugs, and improve cache locality by allowing message lists to be read/only.
2009-06-18[lib] Put symbolic backtrace on system logStephen Hemminger
When BGP crashes, sometimes all we get to see is syslog.
2008-08-22[warnings] Fix various SOS warningsPaul Jakma
2008-08-15 Paul Jakma <paul.jakma@sun.com> * */*: Fix various problems flagged by Sun Studio compiler. - '<qualifier> <storage>' obsolescent in declarations - empty statements (';' after ALIAS definitions) - implicit declarations (e.g printstack in lib/log.c) - "\%" in printf string instead of "%%" - loops that return on the first iteration (legitimately, but compiler can't really know), e.g. bgp_routemap.c - internal declarations which mask prototypes.
2008-08-22[lib] mes_lookup string lookup table argument should be marked constStephen Hemminger
2008-08-14 Stephen Hemminger <stephen.hemminger@vyatta.com> * lib/log.{c,h}: struct message argument should point to const * */*.c: adjust to suit, Signed-off-by: Paul Jakma <paul@quagga.net>
2008-02-28[lib] Fix the struct message LOOKUP function to be more robustPaul Jakma
2008-02-28 Paul Jakma <paul.jakma@sun.com> * log.c: (mes_lookup) Sowmini Varadhan diagnosed a problem where this function can cause a NULL dereference, on lookups for unknown indices, or messages with NULL strings. Can occur, e.g., debug logging code when processing received messages. Fixed to accept a pointer to a default string to be used if there is no match. * log.h: LOOKUP adjusted to match
2007-08-06[bgpd] cleanup, compact and consolidate capability parsing codePaul Jakma
2007-07-26 Paul Jakma <paul.jakma@sun.com> * (general) Clean up and compact capability parsing slightly. Consolidate validation of length and logging of generic TLV, and memcpy of capability data, thus removing such from cap specifc code (not always present or correct). * bgp_open.h: Add structures for the generic capability TLV header and for the data formats of the various specific capabilities we support. Hence remove the badly named, or else misdefined, struct capability. * bgp_open.c: (bgp_capability_vty_out) Use struct capability_mp_data. Do the length checks *before* memcpy()'ing based on that length (stored capability - should have been validated anyway on input, but..). (bgp_afi_safi_valid_indices) new function to validate (afi,safi) which is about to be used as index into arrays, consolidates several instances of same, at least one of which appeared to be incomplete.. (bgp_capability_mp) Much condensed. (bgp_capability_orf_entry) New, process one ORF entry (bgp_capability_orf) Condensed. Fixed to process all ORF entries. (bgp_capability_restart) Condensed, and fixed to use a cap-specific type, rather than abusing capability_mp. (struct message capcode_str) added to aid generic logging. (size_t cap_minsizes[]) added to aid generic validation of capability length field. (bgp_capability_parse) Generic logging and validation of TLV consolidated here. Code compacted as much as possible. * bgp_packet.c: (bgp_open_receive) Capability parsers now use streams, so no more need here to manually fudge the input stream getp. (bgp_capability_msg_parse) use struct capability_mp_data. Validate lengths /before/ memcpy. Use bgp_afi_safi_valid_indices. (bgp_capability_receive) Exported for use by test harness. * bgp_vty.c: (bgp_show_summary) fix conversion warning (bgp_show_peer) ditto * bgp_debug.h: Fix storage 'extern' after type 'const'. * lib/log.c: (mes_lookup) warning about code not being in same-number array slot should be debug, not warning. E.g. BGP has several discontigious number spaces, allocating from different parts of a space is not uncommon (e.g. IANA assigned versus vendor-assigned code points in some number space).
2007-05-02[zebra] Routemap support on received routes, with 'set src' command (linux)Paul Jakma
2007-05-01 David L Stevens <dlstevens@us.ibm.com> * (general) These changes collectively add route-map and prefix-list support to zebra and fix a bug in "show route-map" (with no argument). * doc/main.texi: added route-map, prefix-list, ip protocol and set src documentation * lib/command.h: added PROTOCOL_NODE type * lib/log.c: (proto_name2num) new function, protocol name to number translation. * lib/routemap.c: (vty_show_route_map) fixed "show route-map" without route-map name * lib/routemap.h: added RMAP_ZEBRA type * lib/zebra.h: added proto_name2num() prototype * vtysh/extract.pl.in: added VTYSH_ZEBRA flag for route-map and plist * vtysh/Makefile.am: added zebra_routemap.c * vtysh/vtysh.h: added VTYSH_ZEBRA flag to VTYSH_RMAP * zebra/connected.c: (connected_up_ipv4) added src preference argument to rib_add_ipv4() * zebra/kernel_socket.c: (rtm_read) ditto * zebra/main.c: added prefix list initialization * zebra/Makefile.am: added zebra_routemap.c source file * zebra/rib.h: added generic address union "g_addr" and use in existing places that had an explicit union. Added "src" to struct nexthop. Added preferred src arg to nexthop_ipv4_add and rib_add_ipv4. * zebra/rt_netlink.c: (netlink_routing_table) set preferred source on netlink messages. (netlink_route_change) ditto (netlink_route_multipath) ditto. * zebra/rtread_getmsg.c: (handle_route_entry) added (NULL) src to rib_add_ipv4() call. * zebra/rtread_proc.c: (proc_route_read) ditto * zebra/zebra_rib.c: (nexthop_ipv4_add) add src argument. (nexthop_ipv4_ifindex_add) ditto (rib_add_ipv4) ditto (nexthop_active_check) Add route-map processing. * zebra/zebra_routemap.c: new file for zebra route-map commands. * zebra/zebra_vty.c: (ip_protocol_cmd) Apply route-map to protocol (vty_show_ip_route_detail) added "src" printing (vty_show_ip_route) ditto (show_ip_protocol_cmd) new command, list routemaps. (config_write_protocol) write out routemap protocl config. (zebra_vty_init) Install the new routemap protocol commands. * zebra/zserv.c: (zread_ipv4_add) added (NULL) src arg (zebra_init) init zebra route-maps. * zebra/zserv.h: add zebra_route_map_init
2007-04-29[logging] Minor performance tweakAndrew J. Schorr
2007-04-29 Andrew J. Schorr <ajschorr@alumni.princeton.edu> * log.c: (quagga_timestamp) Optimize the subsecond timestamp generation.
2007-04-28[logging] Add new "log timestamp precision" command for subsecond timestampsAndrew J. Schorr
2007-04-28 Andrew J. Schorr <ajschorr@alumni.princeton.edu> * command.c: (config_write_host) Save "log timestamp precision" if not default value. (show_logging) Show configured timestamp precision. (config_log_timestamp_precision) Enable configuration of timestamp precision. (no_config_log_timestamp_precision) Restore default timestamp precision. (cmd_init) Install new timestamp precision commands. * log.h: (struct zlog) New timestamp_precision field. (quagga_timestamp) New function to generate a timestamp with the desired precision. (struct timestamp_control) Declare a structure for use in avoiding repeated duplicate calls to quagga_timestamp. * log.c: (quagga_timestamp) New function to generate a timestamp of the desired precision. (time_print) Call quagga_timestamp if the time hasn't already been calculated. (vzlog) Initialize a timestamp_control structure and pass it to time_print and vty_log. (zlog_backtrace) Fix 64-bit problem: cannot print size_t with %u. * vty.h: Must now include "log.h". (vty_log) Takes an additional struct timestamp_control argument. * vty.c: (vty_log_out) Use new struct timestamp_control and new quagga_timestamp function to print timestamps of the desired precision. (vty_time_print) Use new quagga_timestamp function. (vty_log) Accept new struct timestamp_control argument and pass it down to vty_log_out.
2007-03-20[lib] Make message lookup function more robust.Andrew J. Schorr
2007-03-20 Andrew J. Schorr <ajschorr@alumni.princeton.edu> * log.c: (mes_lookup) Make the function more robust: check for cases where the index does not match the key value at that position. If so, give a warning and fall back to a linear search. And improve the error message in cases where even that fails.
2006-05-28[lib] Add support for Sun libc printstack to zlog_backtrace_sigsafePaul Jakma
2006-05-28 Paul Jakma <paul.jakma@sun.com> * configure.ac: Check for Sun libc printstack(), add a general HAVE_STACK_TRACE define for lib/log.c, if any supported stack symbol dumping function is found (glibc backtrace/sun libc printstack). * log.c: (general) Add support for Sun libc printstack(). (hex_append) make the cpp conditional on general HAVE_STACK_TRACE define. (zlog_backtrace_sigsafe) Ditto. Add printstack() version of the the DUMP macro in this function.
2006-05-15[lib] Add string mapping table for Zserv commandsPaul Jakma
2006-05-15 Paul Jakma <paul.jakma@sun.com> * log.c: (general) Generalise struct zebra_route_desc into struct zebra_desc_table and, similar to route_types, add a command_types table to describe Zserv protocol commands. (route_types[]) use a macro to use designated initialisers while avoiding tedious duplication. (zserv_command_string) lookup string from zebra_desc_table, similar to zebra_route_string * zebra.h: Add declaration for zserv_command_string, adjust the comments to reflect zebra_desc_table.
2005-10-012005-10-01 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* zebra.h: Declare new functions zebra_route_string() and zebra_route_char(). * log.c: (zroute_lookup,zebra_route_string,zebra_route_char) New functions to map zebra route numbers to strings. * zebra_vty.c: (route_type_str) Remove obsolete function: use new library function zebra_route_string() instead. Note that there are a few differences: for IPv6 routes, we now get "ripng" and "ospf6" instead of the old behavior ("rip" and "ospf"). (route_type_char) Remove obsolete function: ues new library function zebra_route_char() instead. Note that there is one difference: the old function returned 'S' for a ZEBRA_ROUTE_SYSTEM route, whereas the new one returns 'X'. (vty_show_ip_route_detail,vty_show_ipv6_route_detail) Replace route_type_str() with zebra_route_string(). (vty_show_ip_route,vty_show_ipv6_route) Replace route_type_char() with zebra_route_char(). * bgp_vty.c: (bgp_config_write_redistribute) Use new library function zebra_route_string instead of a local hard-coded table. * ospf6_asbr.c: Remove local hard-coded tables zroute_name and zroute_abname. Change the ZROUTE_NAME macro to use new library function zebra_route_string(). Remove the ZROUTE_ABNAME macro. (ospf6_asbr_external_route_show): Replace ZROUTE_ABNAME() with a call to zebra_route_char(), and be sure to fix the format string, since we now have a char instead of a char *. * ospf6_zebra.c: Remove local hard-coded tables zebra_route_name and zebra_route_abname. Note that the zebra_route_name[] table contained mixed-case strings, whereas the zebra_route_string() function returns lower-case strings. (ospf6_zebra_read_ipv6): Change debug message to use new library function zebra_route_string() instead of zebra_route_name[]. (show_zebra): Use new library function zebra_route_string() instead of zebra_route_name[]. * ospf_dump.c: Remove local hard-coded table ospf_redistributed_proto. (ospf_redist_string) New function implemented using new library function zebra_route_string(). Note that there are a few differences in the output that will result: the new function returns strings that are lower-case, whereas the old table was mixed case. Also, the old table mapped ZEBRA_ROUTE_OSPF6 to "OSPFv3", whereas the new function returns "ospf6". * ospfd.h: Remove extern struct message ospf_redistributed_proto[], and add extern const char *ospf_redist_string(u_int route_type) instead. * ospf_asbr.c: (ospf_external_info_add) In two messages, use ospf_redist_string instead of LOOKUP(ospf_redistributed_proto). * ospf_vty.c: Remove local hard-coded table distribute_str. (config_write_ospf_redistribute,config_write_ospf_distribute): Use new library function zebra_route_string() instead of distribute_str[]. * ospf_zebra.c: (ospf_redistribute_set,ospf_redistribute_unset, ospf_redistribute_default_set,ospf_redistribute_check) In debug messages, use ospf_redist_string() instead of LOOKUP(ospf_redistributed_proto). * rip_zebra.c: (config_write_rip_redistribute): Remove local hard-coded table str[]. Replace str[] with calls to new library function zebra_route_string(). * ripd.c: Remove local hard-coded table route_info[]. (show_ip_rip) Replace uses of str[] with calls to new library functions zebra_route_char and zebra_route_string. * ripng_zebra.c: (ripng_redistribute_write) Remove local hard-coded table str[]. Replace str[i] with new library function zebra_route_string(i). * ripngd.c: Remove local hard-coded table route_info[]. (show_ipv6_ripng) Use new library function zebra_route_char() instead of table route_info[].
2005-02-032005-02-03 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* log.c: (zlog_signal,zlog_backtrace_sigsafe) Eliminate use of fileno() since it is not async-signal-safe. (_zlog_assert_failed) Rewrite crashlog logic more compactly. (zlog_set_file,zlog_reset_file,zlog_rotate) Update logfile_fd for use in signal handler.
2005-02-032005-02-03 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* log.c: (syslog_sigsafe) Reduce scope of syslog_fd: it is accessed inside this function only. (open_crashlog) New function to open /var/tmp/quagga.<daemon>.crashlog with flags O_WRONLY|O_CREAT|O_EXCL to save some crash info. (zlog_signal,_zlog_assert_failed) Increase logging priority from LOG_ERR to LOG_CRIT. If no file logging is configured, try to use open_crashlog to create a crash logfile. (zlog_backtrace_sigsafe) If a crashlog file descriptor is open, dump a backtrace to that file.
2005-01-182005-01-18 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* log.h: Test for SA_SIGINFO to see whether zlog_signal takes final two args (siginfo and program_counter). * log.c: (hex_append) Include this function only if SA_SIGINFO or HAVE_GLIBC_BACKTRACE is defined. (zlog_signal) Final two args (siginfo and program_counter) now depend on whether SA_SIGINFO is defined on this platform. * sigevent.c: (program_counter) Do not include this function if SA_SIGINFO is not defined on this platform. (exit_handler,core_handler) Test for SA_SIGINFO to decide whether 2nd & 3rd arguments are present and to decide how to invoke zlog_signal. (trap_default_signals) Test for SA_SIGINFO and invoke sigaction appropriately.
2005-01-172005-01-17 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* log.h: Change prototype for zlog_backtrace_sigsafe to take additional program_counter argument. * log.c: (zlog_backtrace_sigsafe) Add additional program_counter argument. If it is non-NULL, use backtrace_symbols_fd to resolve the address. (zlog_signal) Call zlog_backtrace_sigsafe with additional program_counter argument. [pullup candidate]
2005-01-122005-01-12 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* configure.ac: Test for header file <ucontext.h> (for use in signal processing). * sigevent.c: (trap_default_signals) Use the SA_SIGINFO flag to pass additional siginfo_t and ucontext_t arguments to core_handler and exit_handler. (core_handler,exit_handler) Now invoked with 3 arguments (using SA_SIGINFO). Pass additional info to zlog_signal. (program_counter) New function to find program counter in ucontext_t, needs to be enhanced to support more platforms (currently works only on Linux/x86). * log.h: Change the zlog_signal prototype to add new arguments siginfo_t * and program_counter. * log.c: (zlog_signal) Add new arguments siginfo and program_counter. Include si_addr and program counter (if non-NULL) in message. And remove #ifdef HAVE_GLIBC_BACKTRACE around hex_append, since that is now used to render the si_addr and PC pointers.
2004-12-102004-12-10 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* log.c: (zlog_signal,_zlog_assert_failed) Change logging level back to LOG_ERR instead of LOG_EMERG.
2004-12-092004-12-09 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* log.c: (hex_append) No need to include this function if HAVE_GLIBC_BACKTRACE is not defined.
2004-12-09add XXX comment about hex_append being unused.gdt
(only used if HAVE_GLIBC_BACKTRACE, so perhaps ifdef it?)
2004-12-072004-12-07 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* bgp_main.c: (main) The 2nd argument to openzlog has been removed. * isis_main.c: (main) The 2nd argument to openzlog has been removed. * ospf6_main.c: (main) The 2nd argument to openzlog has been removed. Note that stdout logging will no longer be enabled by default when not running as a daemon. * ospf_main.c: (main) The 2nd argument to openzlog has been removed. * rip_main.c: (main) The 2nd argument to openzlog has been removed. * ripng_main.c: (main) The 2nd argument to openzlog has been removed. * main.c: (main) The 2nd argument to openzlog has been removed. So stdout logging will no longer be enabled by default. * irdp_main.c: (irdp_finish) Reduce severity of shutdown message from LOG_WARNING to LOG_INFO. * vtysh.c: Make several functions static instead of global. Added several commands to support destination-specific logging levels. (vtysh_completion) This function is unused, so comment it out. * basic.texi: Document new logging features. Separate basic config commands from basic VTY commands. * log.h: Replace struct zlog flags and maskpri fields with maxlvl array to support individual logging levels for each destination. Remove the 2nd argument to openzlog since the default logging config should be standardized inside the library. Replaced the zlog_set_flag and zlog_reset_flag functions with zlog_set_level. And zlog_set_file now requires an additional log_level argument. Declare zlog_proto_names for use inside command.c in the "show logging" command. Added defines useful for command construction. * log.c: (vzlog) Decide where to send the message based on the individual logging levels configured for each destination. Remove support for ZLOG_STDERR since it was never actually used. Support record-priority for terminal monitors. (zlog_signal,zlog_backtrace_sigsafe) Support destination-specific logging levels. Remove stderr support (was never used). Added support for terminal monitor logging. (_zlog_assert_failed) Increase message severity to LOG_EMERG. (openzlog) Remove 2nd argument since default config should be standardized in library. By default, terminal monitoring is set to debug, and all other logging is disabled. (zlog_set_flag,zlog_reset_flag) Removed. (zlog_set_level) New function to replace zlog_set_flag and zlog_reset_flag. Supports destination-specific logging levels. (zlog_set_file,zlog_reset_file) Support file-specific logging level. (zlog_rotate) Log an error message if fopen fails, and support new file-specific logging level. * command.h: Change DEFUN_CMD_FUNC_DECL and DEFUN_CMD_FUNC_TEXT so that command functions will be static instead of global. Remove declarations for config_exit and config_help. Define new macros DEFUNSH_ATTR, DEFUNSH_HIDDEN, and DEFUNSH_DEPRECATED so we can have deprecated commands in vtysh. Similarly, for completeness, define macros ALIAS_SH, ALIAS_SH_HIDDEN, and ALIAS_SH_DEPRECATED. Also, fix bug in ALIAS_ATTR macro (didn't matter because it was never used). * command.c: Make many functions static instead of global. (facility_name,facility_match,level_match) New functions to support enhanced destination-specific logging levels. (config_write_host) Support new destination-specific logging levels. (config_logmsg) Added new "logmsg" command to help test logging system. (show_logging) Added "show logging" command to show the current configuration of the logging system. (config_log_stdout_level) Support explicit stdout logging level. (no_config_log_stdout) Now takes optional LEVEL arg. (config_log_monitor,config_log_monitor_level,no_config_log_monitor) New commands creating new "log monitor" commands to set terminal monitoring log level. (config_log_file_level) Support explicit file logging level. (config_log_syslog_level) Support explicit syslog logging level. (config_log_facility,no_config_log_facility) Implement new "log facility" command. (cmd_init) Add hooks for new commands: "show logging", "logmsg", "log stdout <level>", "log monitor", "log monitor <level>", "no log monitor", "log file <filename> <level>", "no log file <filename> <level>", "log syslog <level>", "log facility", and "no log facility". * vty.h: Added a "level" argument to vty_log so it can support "log record-priority". Declare new function vty_log_fixed for use in signal handlers. * vty.c: (vty_log,vty_log_out) Added a "level" argument to support "log record-priority" for vty terminal monitors. (vty_down_level) Use config_exit_cmd.func instead of calling config_exit directly (since command functions will now be static instead of global). (vty_log_fixed) New function to send terminal monitor messages from inside a signal handler.
2004-11-282004-11-28 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* log.h: Remove several unused fields from struct zlog. Add comments for other fields, and add one new field syslog_options that is used in the new syslog_sigsafe implementation. * log.c: (syslog_sigsafe) New function to send syslog messages in an async-signal safe way that can be used inside a signal handler. (syslog_connect) New function to connect to syslog daemon inside a signal handler. This function supports only systems where /dev/log is a unix datagram socket (e.g. not Solaris). (zlog_signal) Call syslog_sigsafe if syslog logging is enabled. (zlog_backtrace_sigsafe) Call syslog_sigsafe if syslog logging is enabled. (openzlog) Save syslog_options for use in syslog_sigsafe. (num_append) Fix bug: handle 0 properly. (hex_append) New function to print a u_long in hex format.
2004-11-262004-11-26 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* log.c, log.h, memory.c: Change function name from zlog_backtrace_safe to the more self-explanatory zlog_backtrace_sigsafe.
2004-11-262004-11-26 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* log.c: (zlog_backtrace) New function to log a backtrace. (zlog_backtrace_safe) Log a backtrace in an async-signal-safe way. Unfortunately, this function does not support syslog logging yet. (zlog_signal) Move backtrace code into separate function zlog_backtrace_safe. (_zlog_assert_failed) Call zlog_backtrace before aborting. * log.h: Declare new functions zlog_backtrace and zlog_backtrace_safe. * memory.c: (zerror) Call zlog_backtrace before aborting.
2004-11-24In zlog_signal, should probably check the return code from backtrace, justajs
to be safe.
2004-11-24In zlog_signal, change type of size since backtrace actually returns an int.ajs
2004-11-242004-11-24 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* zassert.h: New header file to declare a quagga-specific assert macro. * log.c: (_zlog_assert_failed) New function called when assert fails to log the error and abort. * zebra.h: Include "zassert.h" instead of <assert.h>. * regex.c: Include "zassert.h" instead of <assert.h>. * dict.c: Include "zassert.h" instead of <assert.h>.
2004-11-232004-11-23 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* sigevent.c: (signal_init) Set up some default signal handlers so that processes will issue an error message before terminating or dumping core. (trap_default_signals) New function to set up signal handlers for various signals that may kill the process. (exit_handler) Call zlog_signal, then _exit. (core_handler) Call zlog_signal, then abort. * log.h: Declare new function zlog_signal. * log.c: (zlog_signal) New function to log information about a received signal before the process dies. Try to log a backtrace also. (quagga_signal_handler,signal_set) Should be static.
2004-11-232004-11-23 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* log.c: (vzlog) Take a single va_list argument and use va_copy as necessary for multiple traversals. (zlog) Pass only one va_list to vzlog. (zlog_*,plog_*) Use a macro for boilerplate code; pass only one va_list to vzlog. (zlog_set_file) Remove unused 2nd argument (flags). (zlog_save_cwd,zlog_get_cwd,zlog_free_cwd) Remove unused functions. * log.h: Remove ZLOG_*_INDEX defines (no longer used). Remove unused 2nd argument from zlog_set_file prototype. Fix prototype for zlog_rotate. * command.c: (config_log_file) Remove unused 2nd arg to zlog_set_file. * vty.c: (vty_out) Fix stdarg usage to perform multiple traversals properly. (vty_log) Must use va_copy for multiple traversals of va_list arg.
2004-11-192004-11-19 David Young <dyoung@pobox.com>ajs
* log.c: (safe_strerror) New function: safe wrapper for strerror.
2004-10-102004-10-10 Paul Jakma <paul@dishone.st>paul
* version.h.in: (pid_output*) add const qualifier. * command.h: Change DEFUN func to take const char *[] rather than char **, to begin process of fixing compile warnings in lib/. Nearly all other changes in this commit follow from this change. * buffer.{c,h}: (buffer_write) pointer-arithmetic is gccism, take const void * and cast an automatic const char *p to it. (buffer_putstr) add const * command.c: (zencrypt) const qualifier (cmd_execute_command_real) ditto (cmd_execute_command_strict) ditto (config_log_file) ditto. Fix leak of getcwd() returned string. * memory.{c,h}: Add MTYPE_DISTRIBUTE_IFNAME for struct dist ifname. * distribute.{c,h}: Update with const qualifier. (distribute_free) use MTYPE_DISTRIBUTE_IFNAME (distribute_lookup) Cast to char *, note that it's ok. (distribute_hash_alloc) use MTYPE_DISTRIBUTE_IFNAME. (distribute_get) Cast to char *, note that it's ok. * filter.c: Update with const qualifier. * if.{c,h}: ditto. * if_rmap.{c,h}: ditto. (if_rmap_lookup) Cast to char *, note that it's ok. (if_rmap_get) ditto. * log.{c,h}: Update with const qualifier. * plist.{c,h}: ditto. * routemap.{c,h}: ditto. * smux.{c,h}: ditto. Fix some signed/unsigned comparisons. * sockopt.c: (getsockopt_cmsg_data) add return for error case. * vty.c: Update with const qualifier.
2004-10-05Number of warnings is down to 3 again in lib directory. A lot of const'shasso
added to strings and a lot of int -> unsigned int changes.
2004-10-04First small part of lib cleanup. Mainly "constification" of arguments andhasso
adding FIXME's.
2003-12-23Merge isisd into the Quagga's framework:jardin
- add privs support - use misc quagga's definitions - make it compile"able" - fix segfault cases related to hostname() - add debug isis xxx command This patch has been approved by Paul Jakma.
2003-12-222003-12-22 Christian Hammers <ch@lathspell.de>gdt
* configure.ac (and everywhere a regular file is opened for writing): use file permissions from configure rather than compiled-in umask.
2003-07-262003-07-26 Paul Jakma <paul@dishone.st>paul
* lib/command.c: Add config_log_syslog_facility_cmd, to set syslog facility. This was a commit to zebra.org on May 20, merge in to zebra-pj.
2002-12-13Initial revisionpaul