<h3>Description</h3>
<p>Crash in permissions module when <code>load_backends</code> set to 1</p>
<pre><code>modparam("permissions", "db_url", DBURL)
modparam("permissions", "db_mode", 0)
modparam("permissions", "address_table", "gw_auth_ip")
modparam("permissions", "trusted_table", "user_auth_ip")
modparam("permissions", "load_backends", 1)
</code></pre>
<h3>Troubleshooting</h3>
<h4>Reproduction</h4>
<p>To avoid Kamailio complaining about an old version table during an upgrade, I attempted to disable the "trusted" backend as we're not using it. Kamailio seg faults on startup. This is on 5.1.8 but I didn't see much difference in permissions with master</p>
<h4>Debugging Data</h4>
<pre><code>(gdb) bt full
#0 0x0000000000000000 in ?? ()
No symbol table info available.
#1 0xffffffff3ee2991c in init_child_trusted (rank=rank@entry=-2) at trusted.c:267
__func__ = "init_child_trusted"
#2 0xffffffff3ee2d1d0 in child_init (rank=<optimized out>) at permissions.c:651
No locals.
#3 0x000000010014a230 in init_mod_child (m=0x1007affd8, rank=rank@entry=-2) at core/sr_module.c:943
__func__ = "init_mod_child"
#4 0x000000010014a0ec in init_mod_child (m=0x1007b0658, rank=rank@entry=-2) at core/sr_module.c:939
__func__ = "init_mod_child"
#5 0x000000010014a0ec in init_mod_child (m=0x1007b0d80, rank=rank@entry=-2) at core/sr_module.c:939
__func__ = "init_mod_child"
#6 0x000000010014a0ec in init_mod_child (m=0x1007b1a88, rank=rank@entry=-2) at core/sr_module.c:939
__func__ = "init_mod_child"
#7 0x000000010014a0ec in init_mod_child (m=0x1007b1ea0, rank=rank@entry=-2) at core/sr_module.c:939
__func__ = "init_mod_child"
#8 0x000000010014a0ec in init_mod_child (m=0x1007b22b8, rank=rank@entry=-2) at core/sr_module.c:939
__func__ = "init_mod_child"
#9 0x000000010014a0ec in init_mod_child (m=0x1007b29c0, rank=rank@entry=-2) at core/sr_module.c:939
__func__ = "init_mod_child"
#10 0x000000010014a0ec in init_mod_child (m=0x1007b33d8, rank=rank@entry=-2) at core/sr_module.c:939
__func__ = "init_mod_child"
#11 0x00000001001565d0 in init_child (rank=rank@entry=-2) at core/sr_module.c:970
No locals.
#12 0x000000010018cbf4 in fork_process (child_id=child_id@entry=-2, desc=<optimized out>, make_sock=make_sock@entry=1) at core/pt.c:338
pid = <optimized out>
child_process_no = <optimized out>
ret = -1
new_seed1 = <optimized out>
new_seed2 = <optimized out>
sockfd = {6, 13}
__func__ = "fork_process"
#13 0xffffffff3f211cd4 in mod_child (rank=<optimized out>) at ctl.c:327
pid = <optimized out>
cs = <optimized out>
rank = 0
rpc_handler = 1
rpc_handler = 1
#14 0x000000010014a230 in init_mod_child (m=0x1007af178, rank=rank@entry=0) at core/sr_module.c:943
__func__ = "init_mod_child"
#15 0x000000010014a0ec in init_mod_child (m=0x1007af800, rank=rank@entry=0) at core/sr_module.c:939
__func__ = "init_mod_child"
#16 0x000000010014a0ec in init_mod_child (m=0x1007affd8, rank=rank@entry=0) at core/sr_module.c:939
__func__ = "init_mod_child"
#17 0x000000010014a0ec in init_mod_child (m=0x1007b0658, rank=rank@entry=0) at core/sr_module.c:939
__func__ = "init_mod_child"
#18 0x000000010014a0ec in init_mod_child (m=0x1007b0d80, rank=rank@entry=0) at core/sr_module.c:939
__func__ = "init_mod_child"
#19 0x000000010014a0ec in init_mod_child (m=0x1007b1a88, rank=rank@entry=0) at core/sr_module.c:939
__func__ = "init_mod_child"
#20 0x000000010014a0ec in init_mod_child (m=0x1007b1ea0, rank=rank@entry=0) at core/sr_module.c:939
__func__ = "init_mod_child"
#21 0x000000010014a0ec in init_mod_child (m=0x1007b22b8, rank=rank@entry=0) at core/sr_module.c:939
__func__ = "init_mod_child"
#22 0x000000010014a0ec in init_mod_child (m=0x1007b29c0, rank=rank@entry=0) at core/sr_module.c:939
__func__ = "init_mod_child"
#23 0x000000010014a0ec in init_mod_child (m=0x1007b33d8, rank=rank@entry=0) at core/sr_module.c:939
__func__ = "init_mod_child"
#24 0x00000001001565d0 in init_child (rank=rank@entry=0) at core/sr_module.c:970
No locals.
#25 0x00000001000c4c44 in main_loop () at main.c:1419
i = <optimized out>
pid = <optimized out>
si = <optimized out>
si_desc = "\000\000\000\001\000h\200\000\000\000\000\000\000\000\000\330\000\000\000\001\000o6H\000\000\000\000\000\000\000\004\000\000\000\000\000\000\000n\000\000\000\000\000\000\000\t\000\000\000\000\000\000\000\002\000\000\000\000\000\000\000\004\377\377\377\377\177\377\357\241\000\000\000\001\000\f\345\004", '\000' <repeats 11 times>, "\001\000\003\277\320\377\377\377\377\377\377\377\375\377\377\377\377\377\377\377\375\377\377\377\377\377\377\377\375\377\377\377\377\377\377\377\375"
nrprocs = <optimized out>
woneinit = <optimized out>
__func__ = "main_loop"
#26 0x00000001000ce704 in main (argc=<optimized out>, argv=<optimized out>) at main.c:2663
cfg_stream = <optimized out>
c = <optimized out>
r = <optimized out>
tmp = 0xffffffff7ffffbb5 ""
tmp_len = 0
port = 0
proto = 0
options = 0x10003ee20 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:x:X:Y:"
ret = -1
seed = 1842495819
rfd = <optimized out>
debug_save = <optimized out>
debug_flag = <optimized out>
dont_fork_cnt = <optimized out>
p = <optimized out>
st = {st_dev = 70325794504717, st_ino = 205858632, st_mode = 16872, st_nlink = 2, st_uid = 1, st_gid = 12, st_rdev = 18446744073709551615, st_size = 334, st_atim = {tv_sec = 1574807105, tv_nsec = 898072627}, st_mtim = {tv_sec = 1574810139, tv_nsec = 861570968}, st_ctim = {tv_sec = 1574810139, tv_nsec = 861570968}, st_blksize = 8192, st_blocks = 16, st_fstype = "tmpfs\000\000\000\000\000\000\000\000\000\000"}
__func__ = "main"
(gdb) info locals
cfg_stream = <optimized out>
c = <optimized out>
r = <optimized out>
tmp = 0xffffffff7ffffbb5 ""
tmp_len = 0
port = 0
proto = 0
options = 0x10003ee20 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:x:X:Y:"
ret = -1
seed = 1842495819
rfd = <optimized out>
debug_save = <optimized out>
debug_flag = <optimized out>
dont_fork_cnt = <optimized out>
p = <optimized out>
st = {st_dev = 70325794504717, st_ino = 205858632, st_mode = 16872, st_nlink = 2, st_uid = 1, st_gid = 12, st_rdev = 18446744073709551615, st_size = 334, st_atim = {tv_sec = 1574807105, tv_nsec = 898072627}, st_mtim = {tv_sec = 1574810139, tv_nsec = 861570968}, st_ctim = {tv_sec = 1574810139, tv_nsec = 861570968}, st_blksize = 8192, st_blocks = 16, st_fstype = "tmpfs\000\000\000\000\000\000\000\000\000\000"}
__func__ = "main"
</code></pre>
<h3>Additional Information</h3>
<ul>
<li><strong>Kamailio Version</strong> - output of <code>kamailio -v</code></li>
</ul>
<pre lang="kamailio" data-meta="-v"><code>version: kamailio 5.1.8 (sparc64/solaris)
flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144 MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, select, /dev/poll.
id: unknown
compiled with gcc 7.3.0```
* **Operating System**:
Solaris 11.4
</code></pre>
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