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Add support for keyword commands.
Signed-off-by: Christian Franke <chris@opensourcerouting.org>
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Register the vtysh socket in Vvty_serv_thread so it will be
correctly closed on vty_reset instead of being leaked.
Signed-off-by: Christian Franke <chris@opensourcerouting.org>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
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Use of this function is prone to memory leaks.
This fixes a memory accounting bug for vty denied connections.
Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net>
Signed-off-by: David Lamparter <equinox@diac24.net>
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* Initial import of the Babel routing protocol, ported to Quagga.
* LICENCE: Update the original LICENCE file to include all known potentially
applicable copyright claims. Ask that any future contributors to babeld/
grant MIT/X11 licence to their work.
* *.{c,h}: Add GPL headers, in according with the SFLC guidance on
dealing with potentially mixed GPL/other licensed work, at:
https://www.softwarefreedom.org/resources/2007/gpl-non-gpl-collaboration.html
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(This patch was modified to leave calls to stream_getl() in place, they
are necessary for the stream's internal pointer to advance to the
correct position. -- Denis)
Signed-off-by: Denis Ovsienko <infrastation@yandex.ru>
Fix gcc warnings about varables that are set but never used.
* bgpd/bgp_attr.c
* cluster_unintern(): ret
* transit_unintern(): ret
* bgp_attr_default_intern(): attre
* bgp_mp_reach_parse(): rd_high, rd_low
* bgpd/bgp_route.c
* bgp_announce_check_rsclient(): bgp
* bgpd/bgp_zebra.c
* zebra_read_ipv4(): ifindex
* zebra_read_ipv6(): ifindex
* bgpd/bgpd.c
* bgp_config_write_peer(): filter
* lib/distribute.c
* distribute_list_all(): dist
* distribute_list(): dist
* distribute_list_prefix_all(): dist
* distribute_list_prefix(): dist
* lib/if_rmap.c
* if_rmap(): if_rmap
* lib/vty.c
* vty_accept(): vty
* lib/zclient.c
* zclient_read(): ret
* zebra/irdp_interface.c
* if_group(): zi
* zebra/rt_netlink.c
* kernel_read(): ret, sock
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getaddrinfo returns a list of socket parameters for listening. it
will contain both IPv4 and IPv6 listening sockets. unless we use
IPV6_V6ONLY on the IPv6 ones, only the socket listed first will
work. if the IPv4 one came first, the IPv6 one would get an
"Address in use" error.
this functionality was already present for bgpd and its listening
sockets. as it is needed for vtys as well, make it a common helper.
Conflicts:
lib/sockunion.c
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If the vty_serv_sock_addrinfo is being used, then vty_serv_sock_family
is unsed. Fix by adjusting ifdef/else/endif
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Signed-off-by: G.Balaji <balajig81@gmail.com>
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heasley: I've used this for a while to track usage.
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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().
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* lib/command.h: Add a RESTRICTED_NODE, intended for use with
anonymous, 'no login' vtys, to provide a subset of 'view' mode
commands.
* lib/command.c: Add RESTRICTED_NODE bits, nothing special, just
following VIEW_NODE.
* lib/vty.c: (vty_auth) enable authentication should fall back to
restricted/view node as appropriate.
(vty_create) init vty's to restricted/view node as appropriate,
for the 'no login' case.
(vty_{no_,}restricted_mode_cmd) config commands to enable
'anonymous restricted' in vty configuration.
(vty_config_write) 'anonymous restricted' config.
(vty_init) Install some commands to restricted mode, and the
'anonymous restricted' config commands into VTY_NODE.
* bgpd/*.c: Install some of the safe(r) BGP commands into
'restricted mode', i.e. lookup commands of non-sensitive data.
Useful with looking-glass route-servers.
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2008-08-13 roy <quagga@de.vio.us>
* lib/vty.c: (vty_delete_char) move check for authentication
down a bit, so we do the delete, but still not re-write of line.
Signed-off-by: Paul Jakma <paul@quagga.net>
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2007-05-09 Paul Jakma <paul.jakma@sun.com>
* configure.ac: sys/conf.h depends on sys/param.h, at least on
FBSD 6.2.
(bug #363) Should check for in_pktinfo for IRDP
2006-05-27 Paul Jakma <paul.jakma@sun.com>
* configure.ac: General cleanup of header and type checks, introducing
an internal define, QUAGGA_INCLUDES, to build up a list of
stuff to include so as to avoid 'present but cant be compiled'
warnings.
Misc additional checks of things missing according to autoscan.
Add LIBM, for bgpd's use of libm, so as to avoid burdening
LIBS, and all the binaries, with libm linkage.
Remove the bad practice of using m4 changequote(), just
quote the []'s in the case statements properly.
This should fix bugs 162, 303 and 178.
* */*.{c,h}: Update all HAVE_* to the standard autoconf namespaced
HAVE_* defines. I.e. HAVE_SA_LEN -> HAVE_STRUCT_SOCKADDR_SA_LEN,
* bgpd/Makefile.am: Add LIBM to bgpd's LDADD, for pow().
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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.
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2006-07-10 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* vty.c: (vty_log_out) Do not call vty_close, because this could
result in a parent function's accessing the freed memory.
Instead, set status VTY_CLOSE and call shutdown(vty->fd, SHUT_RDWR).
And add a comment on vty_close.
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2006-07-10 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* vty.c: (vty_log_out, vty_read, vty_flush, vtysh_flush, vtysh_read)
After an I/O error, must set vty->monitor to 0 before calling
zlog_warn, otherwise an infinite recursion could occur
(since zlog_warn triggers a message to be written to the vty,
and that in turn triggers another error message when it fails, etc.).
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2006-07-03 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* vty.c: (vty_log_out) Debug messages to terminal vty sessions
should include timestamps.
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2006-05-28 Paul Jakma <paul.jakma@sun.com>
* vty.c: (vty_log/vty_log_fixed) dont crash if called when vty
hasn't been initiliased.
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2006-05-13 Paul Jakma <paul.jakma@sun.com>
* vty.c: (vty_describe_command) CID #39 fix was too hasty, just
cause it /can/ leak doesn't mean it always will have, check
first.
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2006-05-12 Paul Jakma <paul.jakma@sun.com>
* vty.c: (vty_describe_command) fix leak of describe vector in
error path, CID #39.
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2006-01-17 Paul Jakma <paul.jakma@sun.com>
* vty.c: (no_terminal_monitor_cmd) New ALIAS for
terminal_no_monitor, in the more normal negating format,
to be kind to my fingers.
(vty_init) install new ALIAS.
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* vty.c (vty_hello): add cast to quiet lint (from David Young)
(patch-lint)
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* command.c: Use MTYPE_HOST, MTYPE_STRVEC. Some other fixups,
including fixing some likely leaks in config_write_file.
* vty.c: memory macro usage fixes.
(vty_read_config) fix leak where relative config file is
specified.
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* lib/filer.c: show protocol name in filter_show()
* lib/plist.c: show protocol name in vty_show_prefix_entry()
* routemap.c: show protocol name in vty_show_route_map_entry()
* lib/vty.c: in vty_command(), show protocol name if command unknown
* zebra/zserv.c: Always provide distance fo route add
* ripd/rip_snmp.c: rip2IfConfReceive() sends values in conformance
with RFC. Also PeerDomain is now set to a STRING type.
* ripd/ripd.h: rip_redistribute_add() API includes metric and distance
* ripd/ripd.c: rip_redistribute_add() API i.e. stores metric and distance
Now allows a RIP-route to overcome a redistributed route coming
from a protocol with worse (higher) administrative distance
Metrics from redistribution are shown in show ip rip
* ripd/rip_zebra.c: adapt to the rip_redistribute_add() API, i.e.
provide distance and metric
* ripd/rip_interface.c: adapt to the rip_redistribute_add() API
* ripd/rip_routemap.c: no RMAP_COMPILE_ERROR on (metric > 16) usage
rather a CMD_WARNING, because set metric ius shared with other
protocols using larger values (such as OSPF)
The match metric action takes first external metric if present
(from redistribution) then RIP metric.
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* command.h: (enum node_type) Add BGP_IPV6M_NODE
* command.c: (node_parent) Handle BGP_IPV6M_NODE node
(config_exit, config_end) ditto
* vty.c: (vty_end_config) Handle BGP_IPV6M_NODE node
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Add wall-clock timing statistics to 'show thread cpu' output.
* thread.h: Define struct rusage_t to contain wall-clock time
and cpu time. Change GETRUSAGE macro to collect both pieces
of data. Make appropriate changes to struct cpu_thread_history
to track CPU time and real time. Change proto for
thread_consumed_time to return real and cpu time elapsed.
And declare a new global variable 'struct timeval recent_time'.
* thread.c (struct timeval recent_time): New global timestamp variable.
(timeval_adjust): If timeout is negative, set to 0 (not 10
microseconds). And remove upper bound of 1,000,000 seconds, since
this does not seem to make any sense (and it breaks
funcname_thread_add_timer_timeval).
(timeval_cmp): Should return long, not int.
(vty_out_cpu_thread_history): Show CPU time and real time.
(cpu_record_hash_print): Calculate totals for CPU and real time.
(cpu_record_print): Change 'show thread cpu' title to show CPU and
real time.
(thread_timer_remain_second): Put current time in global recent_time.
(funcname_thread_add_timer_timeval): Fix assert. Replace 2-case
switch assignment with a ternary expression. Use global recent_time
variable. Fix use of timeval_adjust (previously, the value was not
actually being adjusted).
(thread_cancel): Add missing "break" statement in case
THREAD_BACKGROUND.
(thread_timer_wait): Use global recent_time value instead of calling
gettimeofday. And there's no need to check for negative timeouts,
since timeval_subtract already sets these to zero.
(thread_timer_process): Timers are sorted, so bail out once we
encounter a timer that has not yet popped. And remove some
extraneous asserts.
(thread_fetch): Do not process foreground timers before calling
select. Instead, add them to the ready list just after the select.
Also, no need to maintain a count of the number of ready threads,
since we don't care how many there are, just whether there's
one at the head of the ready list (which is easily checked).
Stick current time in global variable recent_time to reduce
the number of calls to gettimeofday. Tighten logic for
calculating the select timeout.
(thread_consumed_time): Now returns real time and puts the elapsed
cpu time in an additional argument.
(thread_should_yield): Use real (wall-clock) time to decide whether
to yield.
(thread_call): Maintain CPU and real time statistics.
* vty.c (vty_command): For slow commands, show real and cpu time.
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* configure.ac: Added AC_ARG_ENABLE(time-check). By default,
warning messages will now be printed for threads or commands that take
longer than 5 seconds, but this configure argument can be used
to disable the checks or change the threshold.
* thread.h (thread_consumed_time): Declare new function to calculate
elapsed microseconds.
* thread.c (thread_consumed_time): Must be global not static so we
can call it from lib/vty.c:vty_command.
(thread_should_yield): Surround with `#if 0' to make clear that this
function is not currently being used anywhere.
(thread_call): If CONSUMED_TIME_CHECK is defined, print a CPU HOG
warning message if the thread takes more than CONSUMED_TIME_CHECK
microseconds.
* vty.c (vty_command): If CONSUMED_TIME_CHECK is defined, print a CPU
HOG warning message if the command takes more than CONSUMED_TIME_CHECK
microseconds.
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* vty.c: (vty_log_fixed) Use casts to (void *) to try to eliminate
compiler warnings when assigning a (const char *) value to
struct iovec iov_base.
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* lib/vty.c: Improve logging of failures to open vty socket(s).
See bugid #163.
* zebra/zserv.c: print more helpful errors when we fail to successfully
bind and listen on zserv socket. Closes bugzilla #163.
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* (global) update all c files to match the lib/vector.h rename of
(struct vector).active to max, and vector_max macro to
vector_active.
* lib/vector.h: Rename to (struct vector).max to slightly less
confusing active, for the number of active slots, distinct from
allocated or active-and-not-empty. Rename vector_max to
vector_active for same reason.
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* command.c: (no_banner_motd_cmd) use XFREE.
* vty.c: (vty_hello) fix the indentation and comment.
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* command.c: (banner_motd_file_cmd) use XSTRDUP/XFREE
* vty.c: (vty_hello) suggestions from Andrew, read by line and
stub out trailling non-printable characters on each line thus
allowing us to specify VTY_NEWLINE to vty_out.
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* vty.c: (vty_hello) display motd file, if set
* command.h: add char *motdfile to struct host
* command.c: (config_write_host) write out motdfile config
(banner_motd_file_cmd) new command, allow motd to be read from
file.
(no_banner_motd_cmd) free motdfile string, if needs be.
(cmd_init) init (struct host).motdfile. Add new motd file
commands.
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* vty.c: Fix fd leak.
[backport candidate]
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* {vty.h,vty.c}: Remove vty_finish (duplicate of vty_reset).
* isis_main.c: (reload) Call vty_reset instead of vty_finish (both
functions were exactly the same).
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* buffer.h: Make the struct buffer and struct buffer_data structures
private by moving them inside buffer.c. Add comments for all
functions. Rename buffer_write as buffer_put (to be more consistent
with the buffer_putc and buffer_putstr functions). Declare a new
buffer_write function that is used to write data to a file descriptor
and/or add it to the buffer queue. Remove unused function
buffer_flush_vty_all. Create a new enum typedef buffer_status_t
to be used as the return code for all buffer_flush* functions
and buffer_write.
* buffer.c: The struct buffer and struct buffer_data declarations
are now private to this file. In conjunction with that, remove
some unnecessary fields: struct buffer (alloc, unused_head,
unused_tail, length), struct buffer_data (prev).
(buffer_data_new) Removed: functionality incorporated into buffer_add.
(buffer_data_free) Removed: use a macro BUFFER_DATA_FREE instead.
(buffer_new) Use calloc instead of malloc + memset(zero).
Supply an appropriate default size if the specified size is 0.
(buffer_free) Eliminate code duplication by calling buffer_reset to
free the contents of the buffer (and remove unused code related
to unused_head).
(buffer_empty,buffer_putc,buffer_putstr) Aesthetic change (make more
compact).
(buffer_reset) Use macro BUFFER_DATA_FREE. No need to set
alloc and length to 0 (these fields have been removed).
(buffer_add) Fix scope to be static. Call XMALLOC directly instead
of calling removed buffer_data_new function. Simplify the logic
(since it's now a singly-linked list instead of doubly-linked).
(buffer_write) Renamed to buffer_put. Change to void, since return
code of 1 was meaningless. No need to adjust length field, since
it has been removed.
(buffer_putw,buffer_flush,buffer_flush_vty_all,buffer_flush_vty)
Remove unused functions.
(buffer_flush_all) Rewrite using buffer_flush_available to eliminate
a possible failure mode if IOV_MAX is less than the number of buffers
on the queue.
(buffer_flush_window) Incorporate logic from buffer_flush_vty.
Log an error message if there is a writev error.
(buffer_flush_available) Be more paranoid: check for case where
buffer is already empty. Use new ERRNO_IO_RETRY macro, and use
new enum for return codes. Simplify deletion logic (since it's
now a singly-linked list).
(buffer_write) New function for use with non-blocking I/O.
* vty.h: Replace the struct vty sb_buffer field with a fixed-size
(5-character) sb_buf field and an sb_len field, since using
a struct buffer was inappropriate for this task. Add some useful
comments about telnet window size negotiation.
* vty.c: Include <arpa/telnet.h> (no longer included by zebra.h).
Remove VTY_OBUF_SIZE (instead use buffer_new default size).
Make telnet_backward_char and telnet_space_char static const.
(vty_out) Replace buffer_write with buffer_put.
(vty_log_out) Check for I/O errors. If fatal, close the vty session.
Consolidate 3 separate writes into a single write call.
(vty_will_echo,vty_command,vty_next_line,vty_previous_line,
vty_end_config,vty_describe_fold,vty_clear_buf,vty_serv_sock_addrinfo,
vty_serv_sock_family,vty_serv_un,vty_use_backup_config,exec_timeout,
vty_config_write,vty_save_cwd) Fix scope to static.
(vty_new) Let buffer_new use its default buffer size.
(vty_write) Fix signature: 2nd arg should be const char *.
Replaced buffer_write with buffer_put.
(vty_telnet_option) Fix minor bug (window height or width greater than
255 was broken). Use sb_buf and sb_len instead of removed sb_buffer
(which was being used improperly).
(vty_read) On error, use ERRNO_IO_RETRY to decide whether it's fatal.
If the error is fatal, call buffer_reset so vty_close does not attempt
to flush the data. Use new sb_buf and sb_len instead of sb_buffer
to store the SB negotiation string.
(vty_flush) When vty->lines is 0, call buffer_flush_available instead
of buffer_flush_window. Look at the return code from buffer_flush
to detect I/O errors (and in that case, log an error message and
close the vty).
(vty_create) Fix scope to static. Initialize sb_len to 0 instead
of creating sb_buffer.
(vty_accept) Set socket nonblocking.
(vtysh_accept) Use new set_nonblocking function instead of calling
fcntl directly.
(vtysh_flush) New function called from vtysh_read (after command
execution) and from vtysh_write. This flushes the buffer
and reacts appropriately to the return code (by closing the vty
or scheduling further flushes).
(vtysh_read) Check whether error is fatal using ERRNO_IO_RETRY.
If not, just try again later. Otherwise, call buffer_reset before
calling vty_close (to avoid trying to flush the buffer in vty_close).
Fix logic to allow case where a command does not arrive atomically
in a single read call by checking for the terminating NUL char.
(vtysh_write) Use new vtysh_flush helper function.
(vty_close) No need to call buffer_empty, just call buffer_flush_all
in any case (it will check whether the buffer is empty).
Do not free sb_buffer (since it has been removed).
(vty_log_fixed) Use writev instead of write.
* zebra.h: Do not include <arpa/telnet.h>, since this is used only
by lib/vty.c.
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* daemon.c: (daemon) Replace perror with zlog_err.
* vty.c: (vty_serv_un) Replace perror with zlog_err.
* ripd.c: (rip_create_socket) Replace perror with zlog_err.
* ioctl.c: (if_ioctl,if_ioctl_ipv6,if_get_flags) Replace perror with
zlog_err.
* ioctl_solaris.c: (if_ioctl,if_ioctl_ipv6) Replace perror with
zlog_err.
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to walk up in the node tree if called from vtysh. Different daemons
might have commands with same syntax in different nodes (for example
"router-id x.x.x.x" commands in zebra/ospfd/ospf6d daemons).
* vtysh.c: Reflect changes in lib. cmd_execute_command() should know
now that it's called from vtysh and must not attempt to walk up in
the node tree.
[pullup candidate]
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* 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.
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to stdarg handling.
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* 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.
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* global: Replace strerror with safe_strerror. And vtysh/vtysh.c
needs to include "log.h" to pick up the declaration.
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* vty.h: Remove fields in struct vty that were related to VTY_CONTINUE
capabilities (that were used only in bgpd/bgp_route.c and are now
removed). Also remove some other fields that were not being
used at all.
* vty.c: (vty_execute) Do not test for obsolete status values VTY_START
and VTY_CONTINUE.
(vty_read) Remove calls to vty->output_func since that was part
of the VTY_CONTINUE infrastructure that has been removed.
(vty_flush) Remove code to support VTY_START and VTY_CONTINUE.
(vty_close) Remove code to cancel vty->t_output thread, since that
thread was never actually used.
* bgp_route.c: Remove all code related to VTY_CONTINUE; this feature
is deprecated because the output did not represent a single point
in time. All output needs to be generated inline and buffered
by the library code.
(route_vty_out,route_vty_out_tag,damp_route_vty_out,
flap_route_vty_out) Remove code to count number of lines of output,
since this was only useful for VTY_CONTINUE behavior.
(bgp_show_callback) Removed.
(bgp_show_table) Remove hooks for VTY_CONTINUE callback support.
As a result, there's a new output_arg argument to this function.
Make function static.
(bgp_show) Make function static and add a new output_arg argument.
Change all functions that call bgp_show or bgp_show_table to
pass the new output_arg argument (that used to be passed inside
vty->output_arg).
* bgp_mplsvpn.c: Remove declarations of functions defined in
bgp_route.c; these declarations belong in bgp_route.h.
* bgp_route.h: Declare 3 global functions used in both bgp_route.c
and in bgp_mplsvpn.c.
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* vty.c: Vtysh connections to daemons should use buffering.
(vty_out) Remove exception for vty_shell_serv, just use buffer_write.
(vty_new) Increase output buffer size to 4096 rounded up to a
multiple of pagesize.
(vtysh_read) After command has been executed and all output buffered,
call buffer_flush_available and schedule further writes if the
buffers are not yet empty.
(vtysh_write) New function to flush output to vtysh when the socket
is writeable.
(vty_event) Added new VTYSH_WRITE event for flushing buffers to vtysh
clients. Also, should save read thread in vty->t_read so the
thread can be cancelled in vty_close.
* buffer.h: In struct buffer_data, remove unused "parent" field.
Convert "unsigned char *data" to "unsigned char data[0]" to save
a malloc. Declare new function buffer_flush_available that works
with non-blocking sockets.
* buffer.c: (buffer_data_new) Use a single malloc now that data is
a variable-size array at end of structure.
(buffer_data_free) Just a single free now that data is part of the
structure.
(buffer_write) Simplify the logic to make behavior more transparent.
(buffer_flush) Decrease b->length as data is written out.
(buffer_flush_vty_all) Decrease b->length as buffers are freed.
(buffer_flush_vty) Decrease b->length as data is written out.
(buffer_flush_available) New function to flush non-blocking sockets.
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* vty.c: As per Andrew's suggestions..
(vty_serv_un) remove flags.
(vtysh_accept) close socket if we cant set NONBLOCK. Add flags.
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* vty.c: Move setting of sock to O_NONBLOCK from vty_serv_un
to vtysh_accept, where sock is the actual fd we wanted to set to
O_NONBLOCK, ie the /connected/ vtysh unix socket.
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* 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.
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added to strings and a lot of int -> unsigned int changes.
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