[Olsr-dev] olsrdv1: crash in jsoninfo plugin - weimarnetz

Andreas Bräu (spam-protected)
Tue Jun 16 20:31:38 CEST 2015 

Hi,

today I compiled olsrd v0.9.0 on x86. When I call the jsoninfo plugin
olsrd crashed. We have a core dump.

jsoninfo is configured as simple as it could be:

LoadPlugin "olsrd_jsoninfo.so.0.0"
{
}

Do you see anything?

Best,

Andi

(spam-protected):~# gdb /usr/local/sbin/olsrd core
GNU gdb (Debian 7.7.1+dfsg-5) 7.7.1
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This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
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<http://www.gnu.org/software/gdb/bugs/>.
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For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/local/sbin/olsrd...done.
[New LWP 9262]
Core was generated by `olsrd -f /etc/olsrd.conf -d 3'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007fdae736dadb in sgw_ipvx (abuf=0x7ffe9b3f33b0, ipv6=false) at
src/olsrd_jsoninfo.c:875
875         struct gateway_entry * gw = node->gw;
(gdb) bt full
#0  0x00007fdae736dadb in sgw_ipvx (abuf=0x7ffe9b3f33b0, ipv6=false) at
src/olsrd_jsoninfo.c:875
        originatorStr = {buf =
"0б\001\000\000\000\000P0?\233\376\177\000\000
\225@\000\000\000\000\000
Q?\233\376\177\000\000\000\000\000\000\000\000\000\000\276\230@\000\000
"}
        prefixIpStr = {buf =
"\030\000\000\000\060\000\000\000p0?\233\376\177\000\000\345\f7\347\332
\177\000\000\260\063?\233\376\177\000\000\020\000\000\000\060\000\000\0
00P1?\233\376\177"}
        prefixIPStr = 0x7ffe9b3f33b0 ""
        gw = 0x7fdae736b2d7 <abuf_json_new_indent+69>
        selected = false
        originator = 0x7ffe9b3f33b0 ""
        netmask = {v4 = {s_addr = 0}, v6 = {__in6_u = {__u6_addr8 =
'\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0},
__u6_addr32 = {0, 0, 0, 0}}}}
        node = 0x0
        tunnelGwStr = {buf = "
\000\000\000\060\000\000\000P1?\233\376\177\000\000\220\060?\233\376\17
7\000\000\204\232@\000\000\000\000\000\262\f7\347\332\177\000\000\260\0
63?\233\376\177"}
        tc = 0x7ffe9b3f3140
        prefixMaskStr = {buf =
"\220\060?\233\376\177\000\000>\016\001\000\b\000\000\(spam-protected)?\233\376\177\000\000\376\231@\000\000\000
\000\000\345\f7\347\332\177\000\000\260\063?\233\376\177"}
        prefixMASKStr = 0x7fdae7370cb2 "  "
        tunnelGw = 0x409a84 <abuf_puts+120>
"H\213E\350\213P\004\213E\374\001\302H\213E\350\211P\004\213E\374\311\303UH\211\345H\203\354\060H\211}\350H\211u\340H\211U\330H\213E\350\213\020H\213E\350\213@\004)\302\211\320H\230H\213U\350H\213J\bH\213U\350\213R\004Hc\322H\215<\021H\213M\330H\213U\340H\211\306\350W\370\377\377\211E\374\203", 
<incomplete sequence \374>
        current_gw = 0x0
        sgwTunnelInterfaceNames = 0x0
        i = 0
#1  0x00007fdae736df2a in ipc_print_sgw (abuf=0x7ffe9b3f33b0) at
src/olsrd_jsoninfo.c:929
No locals.
#2  0x00007fdae7370769 in send_info (send_what=8191, the_socket=12) at
src/olsrd_jsoninfo.c:1362
        abuf = {size = 69632, len = 69204, 
          buf = 0x1b5c070 "{\n  \"systemTime\": 1434479108,\n 
 \"timeSinceStartup\": 3932,\n  \"neighbors\": [\n    {\n     
 \"ipAddress\": \"10.63.1.21\",\n      \"symmetric\": true,\n     
 \"multiPointRelay\": false,\n      \"multiPointRelaySelecto"...}
        header_len = 0
        header_buf =
"\377\377\377\377\377\377\377\377\000\000\000\000\000\000\000\000\377\377\377\377\377\377\377\377\372\351|\347\332\177\000\000\377\377\377\377\000\000\000\000\372\351|\347\332\177\000\000\266\066?\000\v\000\000\000`W\262\347\332\177\000\000\000\000\000\000\000\000\000\000\n\000\000\000\000\000\000\000!o\216\347\332\177\000\000\060б\001\000\000\000\000.\000\000\000\000\000\000\000\240<?\233\376\177\000\000 
Q?\233\376\177\000\000\027?}\347\332\177\000\000\000\070?\233\376\177\000\000\060\000\000\000\060\000\000\000\020\063?\233\376\177\000\000P2?\233\376\177\000\000\260\070?\233\376\177\000\000\360\067?\233\376\177\000\000\177", 
'\000' <repeats 23 times>,
"\001"...
        content_type = 0x7fdae7371f85 "application/json"
#3  0x00007fdae736c4a8 in ipc_action (fd=10, data=0x0, flags=1) at
src/olsrd_jsoninfo.c:547
        pin = {storage = {ss_family = 2, __ss_align = 0, 
            __ss_padding =
"\260=?\233\376\177\000\000\360<?\233\376\177\000\000pv\264\001\000\000\000\000P\255\263\001\000\000\000\000\n\000\000\000\000\000\000\000?\000\000\000\000\000\000\000\001\000\000\000\000\000\000\000\001\000\000\000\000\000\000\000\360=?\233\376\177\000\000pv\264\001\000\000\000\000\004j\200U\000\000\000\000\060б\001\000\000\000\000 
\225@\000\000\000\000\000 Q?\233\376\177\000"}, in = {sa_family = 2,
sa_data = "\336\310\177\000\000\001\000\000\000\000\000\000\000"}, in4
= {sin_family = 2, sin_port = 51422, sin_addr = {
              s_addr = 16777343}, sin_zero =
"\000\000\000\000\000\000\000"}, in6 = {sin6_family = 2, sin6_port =
51422, sin6_flowinfo = 16777343, sin6_addr = {__in6_u = {__u6_addr8 =
"\000\000\000\000\000\000\000\000\260=?\233\376\177\000", __u6_addr16 =
{0, 0, 0, 0, 15792, 39743, 
                  32766, 0}, __u6_addr32 = {0, 0, 2604613040, 32766}}},
sin6_scope_id = 2604612848}}
        addr =
"127.0.0.1\000E\000\000\000\000\000.\000\000\000\000\000\000\000\220>?\233\376\177\000\000 
Q?\233\376\177\000\000\027?}\
347\332\177"
        rfds = {__fds_bits = {4096, 0 <repeats 15 times>}}
        tv = {tv_sec = 0, tv_usec = 0}
        send_what = 8191
        ipc_connection = 12
        addrlen = 16
#4  0x000000000041712f in poll_sockets () at src/scheduler.c:341
        flags = 1
        _socket_node = 0x1b23bb8
        _next_socket_node = 0x1b23d58
        n = 2
        entry = 0x1b23b90
        ibits = {__fds_bits = {3072, 0 <repeats 15 times>}}
        obits = {__fds_bits = {0 <repeats 16 times>}}
        tvp = {tv_sec = 0, tv_usec = 0}
        hfd = 12
        fdsets = 1
#5  0x00000000004176bf in olsr_scheduler () at src/scheduler.c:481
        next_interval = 3982
#6  0x000000000041e99c in main (argc=3, argv=0x7ffe9b3f5128) at
src/main.c:704
        default_ifcnf = 0x1b1d200
        conf_file_name = "/etc/olsrd.conf\000.conf", '\000' <repeats
1363 times>...
        buf = {buf = "10.63.1.51", '\000' <repeats 35 times>}
        loadedConfig = true
        i = 5
        ifn = 0x44b9c0 <__libc_csu_init>
        __func__ = "main"
(gdb) 
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