[S] Change in osmo-remsim[master]: bankd: Don't use 127.0.0.1 as default IP address for the server

laforge has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-remsim/+/33813 ) Change subject: bankd: Don't use 127.0.0.1 as default IP address for the server ...................................................................... bankd: Don't use 127.0.0.1 as default IP address for the server If remsim-bankd connects via 127.0.0.1 or any other loopback-routed IP address to the remsim-server, then the getpername() of remsim-server for the bankd will also render 127.0.0.1, and subsequently that IP address will be provided to remsim-client as address to connect to. In almost all setups, remsim-client will be running on a remote node and hence not able to reach remsim-bankd at 127.0.0.1. Let's turn the server-IP into a mandatory command line argument of remsim-bankd and not use a problematic default value. Change-Id: I3deb05e31cdf35232cf9a118d5a5fcdb5d0ab601 --- M doc/manuals/chapters/remsim-bankd.adoc M src/bankd/bankd_main.c 2 files changed, 36 insertions(+), 7 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-remsim refs/changes/13/33813/1 diff --git a/doc/manuals/chapters/remsim-bankd.adoc b/doc/manuals/chapters/remsim-bankd.adoc index 4df0844..e87de52 100644 --- a/doc/manuals/chapters/remsim-bankd.adoc +++ b/doc/manuals/chapters/remsim-bankd.adoc @@ -61,7 +61,7 @@ ==== SYNOPSIS -*osmo-remsim-bankd* [-h] [-V] [-d LOGOPT] [-i A.B.C.D] [-p <1-65535>] [-b <1-1023>] [-n <1-1023>] [-I A.B.C.D] [-P <1-65535> ] +*osmo-remsim-bankd* [-h] [-V] [-d LOGOPT] -i A.B.C.D [-p <1-65535>] [-b <1-1023>] [-n <1-1023>] [-I A.B.C.D] [-P <1-65535> ] ==== OPTIONS @@ -73,7 +73,9 @@ Configure the logging verbosity, see <<remsim_logging>>. *-i, --server-host A.B.C.D*:: Specify the remote IP address/hostname of the `osmo-remsim-server` to - which this bankd shall establish its RSPRO control connection + which this bankd shall establish its RSPRO control connection. Do not specify a loopback + address or localhost, as this would in most cases result in a broken configuration where + a [usually remote] remsim-client attempts to reach the bankd via loopback, which doesn't work. *-p, --server-port <1-65535>*:: Specify the remote TCP port number of the `osmo-remsim-server` to which this bankd shall establish its RSPRO control connection diff --git a/src/bankd/bankd_main.c b/src/bankd/bankd_main.c index e002b94..212e606 100644 --- a/src/bankd/bankd_main.c +++ b/src/bankd/bankd_main.c @@ -284,13 +284,13 @@ return 0; } -static void printf_help() +static void printf_help(FILE *out) { - printf( + fprintf(out, " -h --help Print this help message\n" " -V --version Print the version of the program\n" " -d --debug option Enable debug logging (e.g. DMAIN:DST2)\n" -" -i --server-host A.B.C.D remsim-server IP address (default: 127.0.0.1)\n" +" -i --server-host A.B.C.D remsim-server IP address (mandatory)\n" " -p --server-port <1-65535> remsim-server TCP port (default: 9998)\n" " -b --bank-id <1-1023> Bank Identifier of this SIM bank (default: 1)\n" " -n --num-slots <1-1023> Number of Slots in this SIM bank (default: 8)\n" @@ -336,7 +336,7 @@ switch (c) { case 'h': - printf_help(); + printf_help(stdout); exit(0); break; case 'V': @@ -397,7 +397,7 @@ bankd_init(g_bankd); srvc = &g_bankd->srvc; - srvc->server_host = "localhost"; + srvc->server_host = NULL; srvc->server_port = 9998; srvc->handle_rx = bankd_srvc_handle_rx; srvc->own_comp_id.type = ComponentType_remsimBankd; @@ -407,6 +407,13 @@ handle_options(argc, argv); + if (!srvc->server_host) { + fprintf(stderr, "ERROR: You must specify the host name / IP of the remsim-server to which " + "the bankd shall connect to\n\n"); + printf_help(stderr); + exit(2); + } + g_bankd->main = pthread_self(); signal(SIGMAPDEL, handle_sig_mapdel); signal(SIGMAPADD, handle_sig_mapadd); -- To view, visit https://gerrit.osmocom.org/c/osmo-remsim/+/33813 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-remsim Gerrit-Branch: master Gerrit-Change-Id: I3deb05e31cdf35232cf9a118d5a5fcdb5d0ab601 Gerrit-Change-Number: 33813 Gerrit-PatchSet: 1 Gerrit-Owner: laforge &lt;laforge(a)osmocom.org&gt; Gerrit-MessageType: newchange