From 182412d37146c6b0bf7f111d3b35397820996528 Mon Sep 17 00:00:00 2001 From: Daniel Willmann Date: Mon, 28 Dec 2020 18:07:27 +0100 Subject: gbproxy: Add SGSN name This is useful for logging and configuration to identify an SGSN by name Change-Id: I2a3410dd9bebb242957e13a63ed70e447204203c Related: SYS#5115, OS#4472 --- doc/examples/osmo-gbproxy/osmo-gbproxy.cfg | 1 + include/osmocom/sgsn/gb_proxy.h | 8 +++++-- src/gbproxy/gb_proxy.c | 4 +++- src/gbproxy/gb_proxy_peer.c | 38 ++++++++++++++++++++++++++---- src/gbproxy/gb_proxy_vty.c | 24 +++++++++++++++++++ 5 files changed, 68 insertions(+), 7 deletions(-) diff --git a/doc/examples/osmo-gbproxy/osmo-gbproxy.cfg b/doc/examples/osmo-gbproxy/osmo-gbproxy.cfg index df765c0d7..b455ec810 100644 --- a/doc/examples/osmo-gbproxy/osmo-gbproxy.cfg +++ b/doc/examples/osmo-gbproxy/osmo-gbproxy.cfg @@ -9,6 +9,7 @@ gbproxy nri bitlen 4 nri null add 0 4 sgsn nsei 101 + name main nri add 1 nri add 11 sgsn nsei 102 diff --git a/include/osmocom/sgsn/gb_proxy.h b/include/osmocom/sgsn/gb_proxy.h index dd529a31a..84f809867 100644 --- a/include/osmocom/sgsn/gb_proxy.h +++ b/include/osmocom/sgsn/gb_proxy.h @@ -153,6 +153,9 @@ struct gbproxy_sgsn { /* The NSE belonging to this SGSN */ struct gbproxy_nse *nse; + /* Name of the SGSN */ + const char *name; + /* Pool configuration for the sgsn (only valid if sgsn_facing == true) */ struct { bool allow_attach; @@ -180,7 +183,7 @@ struct gbproxy_sgsn { LOGPCELL_CAT(CELL, DGPRS, LEVEL, FMT, ## ARGS) #define LOGPSGSN_CAT(SGSN, SUBSYS, LEVEL, FMT, ARGS...) \ - LOGP(SUBSYS, LEVEL, "NSE(%05u)-SGSN " FMT, (SGSN)->nse->nsei, ## ARGS) + LOGP(SUBSYS, LEVEL, "NSE(%05u)-SGSN(%s) " FMT, (SGSN)->nse->nsei, (SGSN)->name, ## ARGS) #define LOGPSGSN(SGSN, LEVEL, FMT, ARGS...) \ LOGPSGSN_CAT(SGSN, DGPRS, LEVEL, FMT, ## ARGS) @@ -228,8 +231,9 @@ struct gbproxy_nse *gbproxy_nse_by_nsei(struct gbproxy_config *cfg, uint16_t nse struct gbproxy_nse *gbproxy_nse_by_nsei_or_new(struct gbproxy_config *cfg, uint16_t nsei, bool sgsn_facing); /* SGSN handling */ -struct gbproxy_sgsn *gbproxy_sgsn_alloc(struct gbproxy_config *cfg, uint16_t nsei); +struct gbproxy_sgsn *gbproxy_sgsn_alloc(struct gbproxy_config *cfg, uint16_t nsei, const char *name); void gbproxy_sgsn_free(struct gbproxy_sgsn *sgsn); +struct gbproxy_sgsn *gbproxy_sgsn_by_name(struct gbproxy_config *cfg, const char *name); struct gbproxy_sgsn *gbproxy_sgsn_by_nsei(struct gbproxy_config *cfg, uint16_t nsei); struct gbproxy_sgsn *gbproxy_sgsn_by_nsei_or_new(struct gbproxy_config *cfg, uint16_t nsei); struct gbproxy_sgsn *gbproxy_sgsn_by_nri(struct gbproxy_config *cfg, uint16_t nri, bool *null_nri); diff --git a/src/gbproxy/gb_proxy.c b/src/gbproxy/gb_proxy.c index bce405596..4df94a75f 100644 --- a/src/gbproxy/gb_proxy.c +++ b/src/gbproxy/gb_proxy.c @@ -298,11 +298,13 @@ static struct gbproxy_bvc *gbproxy_select_sgsn_bvc(struct gbproxy_config *cfg, s if (sgsn->nse != sgsn_bvc->nse) continue; + LOGPBVC(sgsn_bvc, LOGL_INFO, "using SGSN %s\n", sgsn->name); + return sgsn_bvc; } /* This shouldn't happen */ - LOGPCELL(cell, LOGL_ERROR, "Could not find matching BVC for SGSN, dropping message!\n"); + LOGPCELL(cell, LOGL_ERROR, "Could not find matching BVC for SGSN %s, dropping message!\n", sgsn->name); return NULL; } diff --git a/src/gbproxy/gb_proxy_peer.c b/src/gbproxy/gb_proxy_peer.c index 3b120467f..3958de995 100644 --- a/src/gbproxy/gb_proxy_peer.c +++ b/src/gbproxy/gb_proxy_peer.c @@ -350,9 +350,10 @@ struct gbproxy_nse *gbproxy_nse_by_nsei_or_new(struct gbproxy_config *cfg, uint1 /*! Allocate a new SGSN. This ensures the corresponding gbproxy_nse is allocated as well * \param[in] cfg The gbproxy configuration * \param[in] nsei The nsei where the SGSN can be reached + * \param[in] name A name to give the SGSN * \return The SGSN, NULL if it couldn't be allocated */ -struct gbproxy_sgsn *gbproxy_sgsn_alloc(struct gbproxy_config *cfg, uint16_t nsei) +struct gbproxy_sgsn *gbproxy_sgsn_alloc(struct gbproxy_config *cfg, uint16_t nsei, const char *name) { struct gbproxy_sgsn *sgsn; OSMO_ASSERT(cfg); @@ -364,16 +365,26 @@ struct gbproxy_sgsn *gbproxy_sgsn_alloc(struct gbproxy_config *cfg, uint16_t nse sgsn->nse = gbproxy_nse_alloc(cfg, nsei, true); if (!sgsn->nse) { LOGPSGSN_CAT(sgsn, DOBJ, LOGL_INFO, "Could not allocate NSE(%05u) for SGSN\n", nsei); - talloc_free(sgsn); - return NULL; + goto free_sgsn; } + if (name) + sgsn->name = talloc_strdup(sgsn, name); + else + sgsn->name = talloc_asprintf(sgsn, "NSE(%05u)", sgsn->nse->nsei); + if (!sgsn->name) + goto free_sgsn; + sgsn->pool.allow_attach = true; sgsn->pool.nri_ranges = osmo_nri_ranges_alloc(sgsn); llist_add_tail(&sgsn->list, &cfg->sgsns); LOGPSGSN_CAT(sgsn, DOBJ, LOGL_INFO, "SGSN Created\n"); return sgsn; + +free_sgsn: + talloc_free(sgsn); + return NULL; } /* Only free gbproxy_sgsn, sgsn can't be NULL */ @@ -386,6 +397,7 @@ static void _sgsn_free(struct gbproxy_sgsn *sgsn) { LOGPSGSN_CAT(sgsn, DOBJ, LOGL_INFO, "SGSN Destroying\n"); llist_del(&sgsn->list); + // talloc will free ->name and ->pool.nri_ranges talloc_free(sgsn); } @@ -403,6 +415,24 @@ void gbproxy_sgsn_free(struct gbproxy_sgsn *sgsn) _sgsn_free(sgsn); } +/*! Return the SGSN for a given NSEI + * \param[in] cfg The gbproxy configuration + * \param[in] nsei The nsei where the SGSN can be reached + * \return Returns the matching SGSN or NULL if it couldn't be found + */ +struct gbproxy_sgsn *gbproxy_sgsn_by_name(struct gbproxy_config *cfg, const char *name) +{ + struct gbproxy_sgsn *sgsn; + OSMO_ASSERT(cfg); + + llist_for_each_entry(sgsn, &cfg->sgsns, list) { + if (!strcmp(sgsn->name, name)) + return sgsn; + } + + return NULL; +} + /*! Return the SGSN for a given NSEI * \param[in] cfg The gbproxy configuration * \param[in] nsei The nsei where the SGSN can be reached @@ -433,7 +463,7 @@ struct gbproxy_sgsn *gbproxy_sgsn_by_nsei_or_new(struct gbproxy_config *cfg, uin sgsn = gbproxy_sgsn_by_nsei(cfg, nsei); if (!sgsn) - sgsn = gbproxy_sgsn_alloc(cfg, nsei); + sgsn = gbproxy_sgsn_alloc(cfg, nsei, NULL); return sgsn; } diff --git a/src/gbproxy/gb_proxy_vty.c b/src/gbproxy/gb_proxy_vty.c index dd0c1588c..adcdf7069 100644 --- a/src/gbproxy/gb_proxy_vty.c +++ b/src/gbproxy/gb_proxy_vty.c @@ -188,6 +188,7 @@ static void sgsn_write_nri(struct vty *vty, struct gbproxy_sgsn *sgsn, bool verb static void write_sgsn(struct vty *vty, struct gbproxy_sgsn *sgsn) { vty_out(vty, "sgsn nsei %u%s", sgsn->nse->nsei, VTY_NEWLINE); + vty_out(vty, " name %s%s", sgsn->name, VTY_NEWLINE); vty_out(vty, " %sallow-attach%s", sgsn->pool.allow_attach ? "" : "no ", VTY_NEWLINE); sgsn_write_nri(vty, sgsn, false); } @@ -256,6 +257,28 @@ free_nothing: return CMD_WARNING; } +DEFUN(cfg_sgsn_name, + cfg_sgsn_name_cmd, + "name NAME", + "Configure the SGSN\n" + "Name the SGSN\n" + "The name\n") +{ + struct gbproxy_sgsn *sgsn = vty->index; + const char *name = argv[0]; + + if (sgsn->name) + talloc_free((void *)sgsn->name); + + sgsn->name = talloc_strdup(sgsn, name); + if (!sgsn->name) { + vty_out(vty, "%% Unable to set name for SGSN with nsei %05u%s", sgsn->nse->nsei, VTY_NEWLINE); + return CMD_WARNING; + } + + return CMD_SUCCESS; +} + DEFUN_ATTR(cfg_sgsn_nri_add, cfg_sgsn_nri_add_cmd, "nri add <0-32767> [<0-32767>]", NRI_STR "Add NRI value or range to the NRI mapping for this MSC\n" @@ -647,6 +670,7 @@ int gbproxy_vty_init(void) install_element(CONFIG_NODE, &cfg_sgsn_nsei_cmd); install_node(&sgsn_node, config_write_sgsn); + install_element(SGSN_NODE, &cfg_sgsn_name_cmd); install_element(SGSN_NODE, &cfg_sgsn_allow_attach_cmd); install_element(SGSN_NODE, &cfg_sgsn_no_allow_attach_cmd); install_element(SGSN_NODE, &cfg_sgsn_nri_add_cmd); -- cgit v1.2.3