mesh: Offload loopback packets to l_idle_onshot() Any packet that may be handled internally by the daemon must be sent in it's own idle_oneshot context, to prevent multiple nodes from handling and responding in the same context, eventually corrupting memory. This addresses the following crash: Program terminated with signal SIGSEGV, Segmentation fault. 0 tcache_get (tc_idx=0) at malloc.c:2951 2951 tcache->entries[tc_idx] = e->next; (gdb) bt 0 tcache_get (tc_idx=0) at malloc.c:2951 1 __GI___libc_malloc (bytes=bytes@entry=16) at malloc.c:3058 2 0x0000564cff9bc1de in l_malloc (size=size@entry=16) at ell/util.c:62 3 0x0000564cff9bd46b in l_queue_push_tail (queue=0x564d000c9710, data=data@entry=0x564d000d0d60) at ell/queue.c:136 4 0x0000564cff9beabd in idle_add (callback=callback@entry=0x564cff9be4e0 <oneshot_callback>, user_data=user_data@entry=0x564d000d4700, flags=flags@entry=268435456, destroy=destroy@entry=0x564cff9be4c0 <idle_destroy>) at ell/main.c:292 5 0x0000564cff9be5f7 in l_idle_oneshot (callback=callback@entry=0x564cff998bc0 <tx_worker>, user_data=user_data@entry=0x564d000d83f0, destroy=destroy@entry=0x0) at ell/idle.c:144 6 0x0000564cff998326 in send_tx (io=<optimized out>, info=0x7ffd035503f4, data=<optimized out>, len=<optimized out>) at mesh/mesh-io-generic.c:637 7 0x0000564cff99675a in send_network_beacon (key=0x564d000cfee0) at mesh/net-keys.c:355 8 snb_timeout (timeout=0x564d000dd730, user_data=0x564d000cfee0) at mesh/net-keys.c:364 9 0x0000564cff9bdca2 in timeout_callback (fd=<optimized out>, events=<optimized out>, user_data=0x564d000dd730) at ell/timeout.c:81 10 timeout_callback (fd=<optimized out>, events=<optimized out>, user_data=0x564d000dd730) at ell/timeout.c:70 11 0x0000564cff9bedcd in l_main_iterate (timeout=<optimized out>) at ell/main.c:473 12 0x0000564cff9bee7c in l_main_run () at ell/main.c:520 13 l_main_run () at ell/main.c:502 14 0x0000564cff9bf08c in l_main_run_with_signal (callback=<optimized out>, user_data=0x0) at ell/main.c:642 15 0x0000564cff994b64 in main (argc=<optimized out>, argv=0x7ffd03550668) at mesh/main.c:268

Diffstat

1 files changed, 37 insertions(+), 13 deletions(-)