'c++ grpc call with SslCredentials makes coredump always
thanks in advance.
I'm trying to make client program for grpc comm in ros(melodic)system. but when i call any rpc method with sslcredentials, it always makes coredump.
my env is below
- ubuntu / c++
- ros melodic
- with InsecureChannelCredentials, it works fine
- with sslCredention, it makes always coredump
- testing with modified sample codes(it's running on normal ubuntu system not ros), works fine.
Actually, I expect ssl handshake fail as a result of program. but i do not know why it makes crash. I guess it is related with program launch environment(this program is for ros) but i'm not sure.
if you guys know why, please let me know.
here is my code
HelloRequest request;
request.set_name("test");
DirUtils::readWholeFile("roots.pem", cacert);
HelloReply reply;
ClientContext context;
grpc::SslCredentialsOptions ssl_opts = {cacert.c_str(), "", ""};
ssl_opts.pem_root_certs = cacert.c_str();
auto channel_creds = grpc::SslCredentials(ssl_opts);
#if 1
auto channel = grpc::CreateChannel("localhost:50051", channel_creds);
#else
auto channel = grpc::CreateChannel("localhost:50051", grpc::InsecureChannelCredentials());
#endif
std::unique_ptr<Greeter::Stub> stub(Greeter::NewStub(channel));
CLOGE("runrunrun");
grpc::Status status = stub->SayHello(&context, request, &reply);
if (status.ok()) {
CLOGE("%s", reply.message().c_str());
} else {
std::cout << status.error_code() << ": " << status.error_message() << std::endl;
CLOGE("RPC failed");
}
Below is grpc trace with GRPC_TRACE=round_robin,connectivity_state,pick_first dns_resolver subchannel subchannel_pool
with SslCredention
[ INFO] [1647838520.766193359]: [GRPC][CloudRoboTaxiProxy] :
D0321 13:55:20.766466283 10705 ev_posix.cc:172] Using polling engine: epollex
D0321 13:55:20.766535088 10705 lb_policy_registry.cc:42] registering LB policy factory for "grpclb"
D0321 13:55:20.766546645 10705 lb_policy_registry.cc:42] registering LB policy factory for "priority_experimental"
D0321 13:55:20.766551896 10705 lb_policy_registry.cc:42] registering LB policy factory for "weighted_target_experimental"
D0321 13:55:20.766556531 10705 lb_policy_registry.cc:42] registering LB policy factory for "pick_first"
D0321 13:55:20.766560778 10705 lb_policy_registry.cc:42] registering LB policy factory for "round_robin"
D0321 13:55:20.766565164 10705 lb_policy_registry.cc:42] registering LB policy factory for "ring_hash_experimental"
D0321 13:55:20.766572233 10705 dns_resolver_ares.cc:495] Using ares dns resolver
D0321 13:55:20.766600439 10705 certificate_provider_registry.cc:33] registering certificate provider factory for "file_watcher"
D0321 13:55:20.766608461 10705 lb_policy_registry.cc:42] registering LB policy factory for "cds_experimental"
D0321 13:55:20.766615145 10705 lb_policy_registry.cc:42] registering LB policy factory for "xds_cluster_impl_experimental"
D0321 13:55:20.766620460 10705 lb_policy_registry.cc:42] registering LB policy factory for "xds_cluster_resolver_experimental"
D0321 13:55:20.766625384 10705 lb_policy_registry.cc:42] registering LB policy factory for "xds_cluster_manager_experimental"
[ERROR] [1647838520.766839781]: [GRPC][CloudRoboTaxiProxy] : RUNRUNRUN
I0321 13:55:20.766971552 10705 connectivity_state.cc:182] ConnectivityStateTracker client_channel[0x56429ac907d8]: get current state: IDLE
I0321 13:55:20.766995225 10705 connectivity_state.cc:182] ConnectivityStateTracker client_channel[0x56429ac907d8]: get current state: IDLE
I0321 13:55:20.767014411 10705 connectivity_state.cc:159] ConnectivityStateTracker client_channel[0x56429ac907d8]: IDLE -> CONNECTING (started resolving, OK)
I0321 13:55:20.830628662 10705 pick_first.cc:144] Pick First 0x56429aca6a70 created.
I0321 13:55:20.830652683 10705 pick_first.cc:261] Pick First 0x56429aca6a70 received update with 1 addresses
I0321 13:55:20.830661559 10705 subchannel_list.h:363] [pick_first 0x56429aca6a70] Creating subchannel list 0x56429aca6de0 for 1 subchannels
Segmentation fault (core dumped)
with InsecureCredentials
[ INFO] [1647838665.719818173]: [GRPC][CloudRoboTaxiProxy] :
D0321 13:57:45.720068078 18636 ev_posix.cc:172] Using polling engine: epollex
D0321 13:57:45.720134657 18636 lb_policy_registry.cc:42] registering LB policy factory for "grpclb"
D0321 13:57:45.720145342 18636 lb_policy_registry.cc:42] registering LB policy factory for "priority_experimental"
D0321 13:57:45.720150278 18636 lb_policy_registry.cc:42] registering LB policy factory for "weighted_target_experimental"
D0321 13:57:45.720154793 18636 lb_policy_registry.cc:42] registering LB policy factory for "pick_first"
D0321 13:57:45.720158925 18636 lb_policy_registry.cc:42] registering LB policy factory for "round_robin"
D0321 13:57:45.720163193 18636 lb_policy_registry.cc:42] registering LB policy factory for "ring_hash_experimental"
D0321 13:57:45.720170070 18636 dns_resolver_ares.cc:495] Using ares dns resolver
D0321 13:57:45.720196517 18636 certificate_provider_registry.cc:33] registering certificate provider factory for "file_watcher"
D0321 13:57:45.720203835 18636 lb_policy_registry.cc:42] registering LB policy factory for "cds_experimental"
D0321 13:57:45.720209495 18636 lb_policy_registry.cc:42] registering LB policy factory for "xds_cluster_impl_experimental"
D0321 13:57:45.720214363 18636 lb_policy_registry.cc:42] registering LB policy factory for "xds_cluster_resolver_experimental"
D0321 13:57:45.720219090 18636 lb_policy_registry.cc:42] registering LB policy factory for "xds_cluster_manager_experimental"
[ERROR] [1647838665.720435529]: [GRPC][CloudRoboTaxiProxy] : runrunrun
I0321 13:57:45.720566714 18636 connectivity_state.cc:182] ConnectivityStateTracker client_channel[0x564b8c974788]: get current state: IDLE
I0321 13:57:45.720589783 18636 connectivity_state.cc:182] ConnectivityStateTracker client_channel[0x564b8c974788]: get current state: IDLE
I0321 13:57:45.720607804 18636 connectivity_state.cc:159] ConnectivityStateTracker client_channel[0x564b8c974788]: IDLE -> CONNECTING (started resolving, OK)
I0321 13:57:51.813909546 18636 pick_first.cc:144] Pick First 0x564b8c98ab70 created.
I0321 13:57:51.813938340 18636 pick_first.cc:261] Pick First 0x564b8c98ab70 received update with 1 addresses
I0321 13:57:51.813947230 18636 subchannel_list.h:363] [pick_first 0x564b8c98ab70] Creating subchannel list 0x564b8c98ae20 for 1 subchannels
I0321 13:57:51.813989918 18636 subchannel_list.h:383] [pick_first 0x564b8c98ab70] subchannel list 0x564b8c98ae20 index 0: Created subchannel 0x564b8c6321a0 for address 127.0.0.1:50051 args={}
I0321 13:57:51.814000974 18636 subchannel_list.h:310] [pick_first 0x564b8c98ab70] subchannel list 0x564b8c98ae20 index 0 of 1 (subchannel 0x564b8c6321a0): starting watch (from IDLE)
I0321 13:57:51.814004907 18636 ref_counted.h:86] SubchannelList:0x564b8c98ae28 /home/omega/tools/grpc/src/core/ext/filters/client_channel/lb_policy/subchannel_list.h:319 ref 1 -> 2 Watcher
I0321 13:57:51.814114063 18636 connectivity_state.cc:182] ConnectivityStateTracker client_channel[0x564b8c974788]: get current state: CONNECTING
I0321 13:57:51.814149960 18636 subchannel_list.h:243] [pick_first 0x564b8c98ab70] subchannel list 0x564b8c98ae20 index 0 of 1 (subchannel 0x564b8c6321a0): connectivity changed: state=CONNECTING, shutting_down=0, pending_watcher=0x564b8c98b0c0
I0321 13:57:51.814507743 18636 subchannel_list.h:243] [pick_first 0x564b8c98ab70] subchannel list 0x564b8c98ae20 index 0 of 1 (subchannel 0x564b8c6321a0): connectivity changed: state=READY, shutting_down=0, pending_watcher=0x564b8c98b0c0
I0321 13:57:51.814516269 18636 pick_first.cc:457] Pick First 0x564b8c98ab70 selected subchannel 0x564b8c6321a0
I0321 13:57:51.814521702 18636 connectivity_state.cc:159] ConnectivityStateTracker client_channel[0x564b8c974788]: CONNECTING -> READY (helper, OK)
I0321 13:57:51.814551635 18636 connectivity_state.cc:122] ConnectivityStateTracker client_transport[0x7fa2900025d8]: add watcher 0x564b8c97c450
[ERROR] [1647838671.815124034]: [GRPC][CloudRoboTaxiProxy] : Hello test
I0321 13:57:51.815213570 18636 pick_first.cc:158] Pick First 0x564b8c98ab70 Shutting down
I0321 13:57:51.815222628 18636 subchannel_list.h:404] [pick_first 0x564b8c98ab70] Shutting down subchannel_list 0x564b8c98ae20
I0321 13:57:51.815259904 18636 subchannel_list.h:330] [pick_first 0x564b8c98ab70] subchannel list 0x564b8c98ae20 index 0 of 1 (subchannel 0x564b8c6321a0): canceling connectivity watch (shutdown)
I0321 13:57:51.815267166 18636 ref_counted.h:182] SubchannelList:0x564b8c98ae28 /home/omega/tools/grpc/src/core/ext/filters/client_channel/lb_policy/subchannel_list.h:146 unref 2 -> 1 Watcher dtor
I0321 13:57:51.815275667 18636 subchannel_list.h:287] [pick_first 0x564b8c98ab70] subchannel list 0x564b8c98ae20 index 0 of 1 (subchannel 0x564b8c6321a0): unreffing subchannel (shutdown)
I0321 13:57:51.815298707 18636 ref_counted.h:182] SubchannelList:0x564b8c98ae28 /home/omega/tools/grpc/src/core/ext/filters/client_channel/lb_policy/subchannel_list.h:200 unref 1 -> 0 shutdown
I0321 13:57:51.815323065 18636 subchannel_list.h:396] [pick_first 0x564b8c98ab70] Destroying subchannel_list 0x564b8c98ae20
I0321 13:57:51.815328477 18636 pick_first.cc:150] Destroying Pick First 0x564b8c98ab70
I0321 13:57:51.815342666 18636 connectivity_state.cc:159] ConnectivityStateTracker client_channel[0x564b8c974788]: READY -> SHUTDOWN (shutdown from API, OK)
I0321 13:57:51.815388688 18636 connectivity_state.cc:159] ConnectivityStateTracker client_transport[0x7fa2900025d8]: READY -> SHUTDOWN (close_transport, OK)
I0321 13:57:51.815397929 18636 connectivity_state.cc:167] ConnectivityStateTracker client_transport[0x7fa2900025d8]: notifying watcher 0x564b8c97c450: READY -> SHUTDOWN
I0321 13:57:51.815417452 18636 connectivity_state.cc:79] watcher 0x564b8c97c450: delivering async notification for SHUTDOWN (OK)
D0321 13:57:51.815500746 18636 init.cc:179] grpc_shutdown starts clean-up now
[ INFO] [1647838671.815908345]: [GRPC][~CloudRoboTaxiProxy] :
if you needs more information, please tell me
Sources
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