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Biswajit Sadhu 6e23e5e9e1 lib: Ensure FRR detects running of the second instance of a FRR daemon, doesnot allow it to run. 
Solution :
The following procedures would be performed :

1. Verify if the pid file for each daemon is present or not. If the file is not present, that means the
   daemon is getting instantiated for the first time. So let it go ahead.
   If the file is present proceed to point ‘2’.

2. Try fetching the properties of the pid file.

3. If it has RW lock, that means one instance of this the daemon is already running.
   So stop moving ahead and do exit() else let it go ahead.
Please note all above procedure happen at
   the initial state of daemon’s instantiation, much before it starts any session with other
   process/allocates resources etc.. and this verification do not have any impact of any
   operations done later, if the verification succeeds.

Signed-off-by: bisdhdh sadhub@vmware.com
2018-09-06 02:51:40 -07:00
alpine alpine: add unit tests to build 2018-06-14 10:27:24 -07:00
babeld *: rename ferr_zlog -> flog_err_sys 2018-08-14 20:02:05 +00:00
bfdd bfdd: fix coverity scan issue (CID 1472622) 2018-08-16 18:33:32 -03:00
bgpd Merge pull request #2945 from dslicenc/bgp-ospf-json 2018-09-01 05:05:30 +02:00
debianpkg build: non-recursive debianpkg 2018-08-30 08:06:44 +02:00
doc zebra: remove invalid ref "frr-configuration" 2018-08-31 18:04:31 +00:00
docker unit tests: support code coverage instrumentation and reports 2018-07-04 11:06:11 -07:00
eigrpd *: add a vrf update hook to be informed of the vrf name 2018-08-28 16:23:50 +02:00
fpm build: clean up BUILT_SOURCES 2017-08-04 11:13:55 +02:00
gdb gdb: Add a directory of files with gdb macros 2016-05-26 15:33:30 +00:00
include include: add netlink.h to our build system 2018-06-21 08:07:30 -04:00
init build: delete .cvsignore files 2011-12-13 14:27:01 +04:00
isisd *: add a vrf update hook to be informed of the vrf name 2018-08-28 16:23:50 +02:00
ldpd *: add a vrf update hook to be informed of the vrf name 2018-08-28 16:23:50 +02:00
lib lib: Ensure FRR detects running of the second instance of a FRR daemon, doesnot allow it to run. 2018-09-06 02:51:40 -07:00
m4 build: non-recursive auxiliary directories 2017-07-31 23:03:30 +02:00
nhrpd *: add a vrf update hook to be informed of the vrf name 2018-08-28 16:23:50 +02:00
ospf6d *: add a vrf update hook to be informed of the vrf name 2018-08-28 16:23:50 +02:00
ospfclient ospfd: Remove unused function 2018-08-21 08:40:51 -04:00
ospfd Merge pull request #2945 from dslicenc/bgp-ospf-json 2018-09-01 05:05:30 +02:00
pbrd *: add a vrf update hook to be informed of the vrf name 2018-08-28 16:23:50 +02:00
pimd Merge pull request #2945 from dslicenc/bgp-ospf-json 2018-09-01 05:05:30 +02:00
pkgsrc *: Remove cvs control points 2017-12-05 17:28:12 -05:00
ports pimd: merge pimd as of 2015-01-19 2016-05-25 20:38:32 -04:00
python build: trigger fewer unneccessary clippy rebuilds 2018-08-30 08:06:44 +02:00
qpb *: use C99 standard fixed-width integer types 2018-03-27 15:13:34 -04:00
redhat bfdd: wire to the build process 2018-08-08 18:24:58 -03:00
ripd *: add a vrf update hook to be informed of the vrf name 2018-08-28 16:23:50 +02:00
ripngd bgpd, ripngd: Convert to using new agg_table/route 2018-08-30 17:47:59 -04:00
sharpd *: add a vrf update hook to be informed of the vrf name 2018-08-28 16:23:50 +02:00
snapcraft snapcraft: Add RPKI to snap package 2018-08-18 13:33:01 -07:00
solaris build: non-recursive solaris 2018-08-30 08:06:44 +02:00
staticd static: Put vty_frame around vrf output in staticd. 2018-08-31 11:29:27 +02:00
tests *: add a vrf update hook to be informed of the vrf name 2018-08-28 16:23:50 +02:00
tools *: use frr_elevate_privs() (1/2: coccinelle) 2018-08-14 20:02:05 +00:00
vtysh vtysh: Let staticd know about vrf sub-mode 2018-08-31 11:29:27 +02:00
watchfrr watchfrr: fix global restart 2018-08-25 18:17:24 +02:00
zebra Merge pull request #2945 from dslicenc/bgp-ospf-json 2018-09-01 05:05:30 +02:00
.clang-format lib: import new JSON iteration macro 2018-08-08 18:01:20 -03:00
.dir-locals.el .dir-locals.el: show trailing whitespace 2017-11-07 12:05:09 -05:00
.dockerignore alpine packaging: build packages and base image directly from git 2018-04-04 10:05:44 -07:00
.gitignore *: globally ignore clippy-generated source 2018-03-09 17:52:15 -05:00
AUTHORS Initial revision 2002-12-13 20:15:29 +00:00
bootstrap.sh autoreconf -i 2007-02-06 19:28:28 +00:00
buildtest.sh config: switch a few references to say FRR 2017-07-12 11:25:33 -05:00
ChangeLog Rename: freerangerouting --> frrouting 2017-03-30 14:24:05 -04:00
common.am build: -Werror does not belong in AM_CPPFLAGS 2018-08-30 08:06:44 +02:00
configure.ac Merge pull request #2913 from opensourcerouting/non-recursive-prep 2018-08-31 11:43:59 -04:00
COPYING *: make consistent & update GPLv2 file headers 2017-05-15 16:37:41 +02:00
COPYING-LGPLv2.1 build: remove LGPL v2.0, add LGPL v2.1 2016-11-15 17:19:38 +09:00
defaults.h *: reindent 2017-07-17 14:04:07 +02:00
Makefile.am build: add Makefile variable easy access 2018-08-30 08:06:44 +02:00
NEWS release: 0.99.24 2016-06-03 15:56:44 -04:00
README frr: fix typo in README 2018-05-14 11:06:27 -04:00
stamp-h.in Initial revision 2002-12-13 20:15:29 +00:00

README 

FRRouting is free software that implements and manages various IPv4 and IPv6
routing protocols.

Currently FRRouting supports BGP4, BGP4+, OSPFv2, OSPFv3, RIPv1, RIPv2, RIPng,
IS-IS, PIM-SM/MSDP, LDP and Babel as well as very early support for EIGRP and
NHRP.

See doc/user/bugs.rst for information on how to report bugs.

See doc/developer/workflow.rst for information on contributing.

See the file COPYING for copying conditions.

Public email discussion can be found at https://lists.frrouting.org/listinfo

Our public slack channel is at https://frrouting.slack.com