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2016-05-26lib, stream: fix stream sanity checksWenjian Ma
Because operator "!" has higher priority than "&&", So we put the "&&" expression in "()" to check both getp and endp. Acked-by: Donald Sharp <sharpd@cumulusnetworks.com> (cherry picked from commit 1ed8ce47b922b71f3b3cdd661e647bbe7ed2eca7)
2016-05-26stream: remove unused stream_read_unblockStephen Hemminger
The one place this was being used in BGP is now gone, can remove deprecated interface. Acked-by: Feng Lu <lu.feng@6wind.com> (cherry picked from commit 3790eb0d3f0bbb24b9c6be97f547cec144ee05d1)
2015-11-05BGP: support for addpath TXDaniel Walton
Signed-off-by: Daniel Walton <dwalton@cumulusnetworks.com> Reviewed-by: Donald Sharp <sharpd@cumulusnetworks.com> Reviewed-by: Vivek Venkataraman <vivek@cumulusnetworks.com Ticket: CM-8014 This implements addpath TX with the first feature to use it being "neighbor x.x.x.x addpath-tx-all-paths". One change to show output is 'show ip bgp x.x.x.x'. If no addpath-tx features are configured for any peers then everything looks the same as it is today in that "Advertised to" is at the top and refers to which peers the bestpath was advertise to. root@superm-redxp-05[quagga-stash5]# vtysh -c 'show ip bgp 1.1.1.1' BGP routing table entry for 1.1.1.1/32 Paths: (6 available, best #6, table Default-IP-Routing-Table) Advertised to non peer-group peers: r1(10.0.0.1) r2(10.0.0.2) r3(10.0.0.3) r4(10.0.0.4) r5(10.0.0.5) r6(10.0.0.6) r8(10.0.0.8) Local, (Received from a RR-client) 12.12.12.12 (metric 20) from r2(10.0.0.2) (10.0.0.2) Origin IGP, metric 0, localpref 100, valid, internal AddPath ID: RX 0, TX 8 Last update: Fri Oct 30 18:26:44 2015 [snip] but once you enable an addpath feature we must display "Advertised to" on a path-by-path basis: superm-redxp-05# show ip bgp 1.1.1.1/32 BGP routing table entry for 1.1.1.1/32 Paths: (6 available, best #6, table Default-IP-Routing-Table) Local, (Received from a RR-client) 12.12.12.12 (metric 20) from r2(10.0.0.2) (10.0.0.2) Origin IGP, metric 0, localpref 100, valid, internal AddPath ID: RX 0, TX 8 Advertised to: r8(10.0.0.8) Last update: Fri Oct 30 18:26:44 2015 Local, (Received from a RR-client) 34.34.34.34 (metric 20) from r3(10.0.0.3) (10.0.0.3) Origin IGP, metric 0, localpref 100, valid, internal AddPath ID: RX 0, TX 7 Advertised to: r8(10.0.0.8) Last update: Fri Oct 30 18:26:39 2015 Local, (Received from a RR-client) 56.56.56.56 (metric 20) from r6(10.0.0.6) (10.0.0.6) Origin IGP, metric 0, localpref 100, valid, internal AddPath ID: RX 0, TX 6 Advertised to: r8(10.0.0.8) Last update: Fri Oct 30 18:26:39 2015 Local, (Received from a RR-client) 56.56.56.56 (metric 20) from r5(10.0.0.5) (10.0.0.5) Origin IGP, metric 0, localpref 100, valid, internal AddPath ID: RX 0, TX 5 Advertised to: r8(10.0.0.8) Last update: Fri Oct 30 18:26:39 2015 Local, (Received from a RR-client) 34.34.34.34 (metric 20) from r4(10.0.0.4) (10.0.0.4) Origin IGP, metric 0, localpref 100, valid, internal AddPath ID: RX 0, TX 4 Advertised to: r8(10.0.0.8) Last update: Fri Oct 30 18:26:39 2015 Local, (Received from a RR-client) 12.12.12.12 (metric 20) from r1(10.0.0.1) (10.0.0.1) Origin IGP, metric 0, localpref 100, valid, internal, best AddPath ID: RX 0, TX 3 Advertised to: r1(10.0.0.1) r2(10.0.0.2) r3(10.0.0.3) r4(10.0.0.4) r5(10.0.0.5) r6(10.0.0.6) r8(10.0.0.8) Last update: Fri Oct 30 18:26:34 2015 superm-redxp-05#
2015-07-23Fix bugs reported by coverity scanDenil Vira
1. Fix useless call in bgpd/bgp_mplsvpn.c Coverity scan ID : 1302528. Calling "decode_label(pnt)" is only useful for its return value, which is ignored. Removed the call. 2. Fix logically dead code in lib/stream.c Coverity Scan ID 1302488. Test for size==0 makes no sense, since assert immediately before it would not let this code happen. 3. Fix Free Pointer dereference in lib/filter.c Coverity Scan ID 23056. access is accessed after free in access_list_delete
2015-05-19BGP: Add dynamic update group supportDonald Sharp
This patch implements the 'update-groups' functionality in BGP. This is a function that can significantly improve BGP performance for Update generation and resultant network convergence. BGP Updates are formed for "groups" of peers and then replicated and sent out to each peer rather than being formed for each peer. Thus major BGP operations related to outbound policy application, adj-out maintenance and actual Update packet formation are optimized. BGP update-groups dynamically groups peers together based on configuration as well as run-time criteria. Thus, it is more flexible than update-formation based on peer-groups, which relies on operator configuration. [Note that peer-group based update formation has been introduced into BGP by Cumulus but is currently intended only for specific releases.] From 11098af65b2b8f9535484703e7f40330a71cbae4 Mon Sep 17 00:00:00 2001 Subject: [PATCH] updgrp commits
2014-06-04*: nuke ^L (page feed)David Lamparter
Quagga sources have inherited a slew of Page Feed (^L, \xC) characters from ancient history. Among other things, these break patchwork's XML-RPC API because \xC is not a valid character in XML documents. Nuke them from high orbit. Patches can be adapted simply by: sed -e 's%^L%%' -i filename.patch (you can type page feeds in some environments with Ctrl-V Ctrl-L) Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2014-06-03bgpd: efficient NLRI packing for AFs != ipv4-unicastPradosh Mohapatra
ISSUE: Currently, for non-ipv4-unicast address families where prefixes are encoded in MP_REACH/MP_UNREACH attributes, BGP ends up sending one prefix per UPDATE message. This is quite inefficient. The patch addresses the issue. PATCH: We introduce a scratch buffer in the peer structure that stores the MP_REACH/MP_UNREACH attributes for non-ipv4-unicast families. This enables us to encode multiple prefixes. In the end, the two buffers are merged to create the UPDATE packet. Signed-off-by: Pradosh Mohapatra <pmohapat@cumulusnetworks.com> Reviewed-by: Daniel Walton <dwalton@cumulusnetworks.com> [DL: removed no longer existing bgp_packet_withdraw prototype] Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2014-04-01lib: fix possible off-by-one in stream_put_prefix()Jorge Boncompte [DTI2]
The STREAM_WRITEABLE() call only checks if there is space for the prefix in the stream but does not account for the prefixlen. The stream_putc() call reduces available space by 1 and we can end copying one byte too much and with "endp" off by one if we are near the buffer end. Instead of moving the stream_putc() call before STREAM_WRITEABLE(), we check before hand for the required space, and open-code it. This avoids a function call and verifying again the stream buffer. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
2012-10-25lib: improve sanity checks in stream_set_endp()Avneesh Sachdev
* lib/stream.c: (stream_set_endp) Add checks to make sure that the supplied 'endp' is within the 'size' of the stream, and that the current read pointer 'getp' is not beyond the specified 'endp'.
2012-04-07lib: add stream_set_endp()Subbaiah Venkata
* lib/stream.[ch]: - Add stream_set_endp(). This can be used to trim data (for example, padding) at the end of a stream. - Fix swapped 'getp' and 'endp' parameters in STREAM_WARN_OFFSETS. From: Subbaiah Venkata <svenkata@google.com> Signed-off-by: Avneesh Sachdev <avneesh@opensourcerouting.org> Signed-off-by: David Lamparter <equinox@diac24.net>
2008-06-07[lib] trivial: add const qualifier to stream_put/writePaul Jakma
2008-06-07 Paul Jakma <paul@jakma.org> * stream.{c,h}: (stream_{put,write}) add const qualifier to source argument. Change u_char to void *.
2006-01-19[lib/stream] small compile fix, use uint64_t, not u_int64_t.paul
2006-01-19 Paul Jakma <paul.jakma@sun.com> * stream.c: (stream_getq_from) should use POSIX uint64_t not u_int64_t. Latter is neither a traditional BSD type, nor a POSIX type.
2006-01-10[stream] Add quad-word support and stream_resizepaul
2006-01-10 Paul Jakma <paul.jakma@sun.com> * stream.c: (stream_new) Allocate stream data as seperate object. (stream_free) free the data. (stream_resize) new function, resize stream to new size. (stream_{get,put}q*) new functions to get/put quad word size types. * stream.h: (struct stream) make data seperate from the stream. Export new stream_resize and quad-word get/put functions.
2005-05-032005-05-03 Paul Jakma <paul@dishone.st>paul
* stream.h: Add comment about the special zero-ing ability of stream_put. (stream_recvmsg, stream_write) should return ssize_t and size_t respectively. Should both be extern linkage. (stream_recvfrom) Stream aware wrapper around recvfrom, in style of stream_read_try. * stream.c: (stream_recvfrom) new function, wrapper around recvfrom. (stream_recvmsg, stream_write) ssize_t and size_t return values
2005-02-242005-02-24 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* stream.c: (stream_read_try) Log a warning message if a fatal I/O error occurs. (stream_fifo_new) Fix prototype. * stream.h: Fix prototype for stream_fifo_new (need void arg).
2005-02-192005-02-19 Paul Jakma <paul.jakma@sun.com>paul
* stream.c: (stream_new) fix dumb mistake.
2005-02-172005-02-17 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* stream.c: (stream_read_try) Use new ERRNO_IO_RETRY macro.
2005-02-162005-02-16 Andrew J. Schorr <ajschorr@alumni.princeton.edu>ajs
* stream.h: Declare new function stream_read_try suitable for use with non-blocking file descriptors. Indicate that stream_read and stream_read_unblock are deprecated. * stream.c: (stream_read_try) New function for use with non-blocking I/O. (stream_recvmsg) Should return -1 if the stream is too small to contain the data.
2005-02-142005-02-14 Paul Jakma <paul.jakma@sun.com>paul
* stream.h: Unsigned long updated to size_t * stream.c: ditto * stream.h: Add stream_copy, stream_dup, stream_recvmsg. Add comment describing struct stream abstraction, and various other comments. Deprecate several unsafe/ambigious macros. Add STREAM_WRITEABLE and STREAM_READABLE. Add (stream_getl_from) for symmetry. Update stream_forward_{endp,getp} to use size_t offset. Make stream data a 0 length array, rather than a seperate malloc. * stream.c: Add consistency checks. Update to follow stream.h changes. (stream_new) Alloc stream+data in one go. (stream_copy) new function, copy a stream. (stream_dup) new function, dup a stream. (stream_recvmsg) new function, recvmsg data into a stream. (stream_empty) no need to check getp == 0.
2005-02-122005-02-12 Paul Jakma <paul.jakma@sun.com>paul
* stream.h: Unsigned long updated to size_t * stream.c: ditto
2005-02-092005-02-09 Paul Jakma <paul.jakma@sun.com>paul
* (global) Update code to match stream.h changes. stream_get_putp effectively replaced with stream_get_endp. stream_forward renamed to stream_forward_getp. stream_forward_endp introduced to replace some previous setting/manual twiddling of putp by daemons. * lib/stream.h: Remove putp. Update reference to putp with endp. Add stream_forward_endp, which daemons were doing manually. Rename stream_forward to stream_forward_getp. lib/stream.c: Remove/update references to putp. introduce stream_forward_endp.
2004-12-222004-12-21 Paul Jakma <paul.jakma@sun.com>paul
* stream.c: Dont allocate streams with 0 sized data buffers
2002-12-13Initial revisionpaul