diff options
author | Jacob Erlbeck <jerlbeck@sysmocom.de> | 2015-02-03 13:47:53 +0100 |
---|---|---|
committer | Holger Hans Peter Freyther <holger@moiji-mobile.com> | 2015-02-06 09:56:17 +0100 |
commit | cb1db8b6d5277a52ed553925d301bfdc514bb77c (patch) | |
tree | 62515e3ce5b4c0d1d13bcc02c787e1957e64e222 /openbsc/src/gprs/sgsn_vty.c | |
parent | 0e8add601da35188eb155c8c279a9bdcaf4ba41b (diff) |
sgsn: Add functions to handle APN contexts
This commit adds the exported functions apn_ctx_find_alloc,
apn_ctx_free, apn_ctx_by_name, and apn_ctx_match to manage and
retrieve APN to GGSN mappings.
The following VTY commands are added to 'config-sgsn':
- apn APN ggsn <0-255>
- apn APN imsi-prefix PREFIX ggsn <0-255>
which maps an APN gateway string to an SGSN id. The SGSN must be
configured in advance. When matching an APN string, entries with a
leading '*' are used for suffix matching, otherwise an exact match is
done. When a prefix is given, it is matched against the IMSI. If
several entries match, a longer matching IMSI prefix has precedence.
If there are several matching entries with the same PREFIX, the entry
with longest matching APN is returned.
Ticket: OW#1334
Sponsored-by: On-Waves ehf
Diffstat (limited to 'openbsc/src/gprs/sgsn_vty.c')
-rw-r--r-- | openbsc/src/gprs/sgsn_vty.c | 64 |
1 files changed, 60 insertions, 4 deletions
diff --git a/openbsc/src/gprs/sgsn_vty.c b/openbsc/src/gprs/sgsn_vty.c index 81b9d7f67..d85ea0192 100644 --- a/openbsc/src/gprs/sgsn_vty.c +++ b/openbsc/src/gprs/sgsn_vty.c @@ -126,6 +126,7 @@ static int config_write_sgsn(struct vty *vty) { struct sgsn_ggsn_ctx *gctx; struct imsi_acl_entry *acl; + struct apn_ctx *actx; vty_out(vty, "sgsn%s", VTY_NEWLINE); @@ -151,6 +152,18 @@ static int config_write_sgsn(struct vty *vty) llist_for_each_entry(acl, &g_cfg->imsi_acl, list) vty_out(vty, " imsi-acl add %s%s", acl->imsi, VTY_NEWLINE); + if (llist_empty(&sgsn_apn_ctxts)) + vty_out(vty, " ! apn * ggsn 0%s", VTY_NEWLINE); + llist_for_each_entry(actx, &sgsn_apn_ctxts, list) { + if (strlen(actx->imsi_prefix) > 0) + vty_out(vty, " apn %s imsi-prefix %s ggsn %d%s", + actx->name, actx->imsi_prefix, actx->ggsn->id, + VTY_NEWLINE); + else + vty_out(vty, " apn %s ggsn %d%s", actx->name, + actx->ggsn->id, VTY_NEWLINE); + } + return CMD_SUCCESS; } @@ -216,14 +229,55 @@ DEFUN(cfg_ggsn_gtp_version, cfg_ggsn_gtp_version_cmd, return CMD_SUCCESS; } -#if 0 +#define APN_STR "Configure the information per APN\n" +#define APN_GW_STR "The APN gateway name optionally prefixed by '*' (wildcard)\n" + +static int add_apn_ggsn_mapping(struct vty *vty, const char *apn_str, + const char *imsi_prefix, int ggsn_id) +{ + struct apn_ctx *actx; + struct sgsn_ggsn_ctx *ggsn; + + ggsn = sgsn_ggsn_ctx_by_id(ggsn_id); + if (ggsn == NULL) { + vty_out(vty, "%% a GGSN with id %d has not been defined%s", + ggsn_id, VTY_NEWLINE); + return CMD_WARNING; + } + + actx = sgsn_apn_ctx_find_alloc(apn_str, imsi_prefix); + if (!actx) { + vty_out(vty, "%% unable to create APN context for %s/%s%s", + apn_str, imsi_prefix, VTY_NEWLINE); + return CMD_WARNING; + } + + actx->ggsn = ggsn; + + return CMD_SUCCESS; +} + DEFUN(cfg_apn_ggsn, cfg_apn_ggsn_cmd, "apn APNAME ggsn <0-255>", - "") + APN_STR APN_GW_STR + "Select the GGSN to use when the APN gateway prefix matches\n" + "The GGSN id") { - struct apn_ctx ** + + return add_apn_ggsn_mapping(vty, argv[0], "", atoi(argv[1])); +} + +DEFUN(cfg_apn_imsi_ggsn, cfg_apn_imsi_ggsn_cmd, + "apn APNAME imsi-prefix IMSIPRE ggsn <0-255>", + APN_STR APN_GW_STR + "Restrict rule to a certain IMSI prefix\n" + "An IMSI prefix\n" + "Select the GGSN to use when APN gateway and IMSI prefix match\n" + "The GGSN id") +{ + + return add_apn_ggsn_mapping(vty, argv[0], argv[1], atoi(argv[2])); } -#endif const struct value_string gprs_mm_st_strs[] = { { GMM_DEREGISTERED, "DEREGISTERED" }, @@ -757,6 +811,8 @@ int sgsn_vty_init(void) install_element(SGSN_NODE, &cfg_auth_policy_cmd); install_element(SGSN_NODE, &cfg_gsup_remote_ip_cmd); install_element(SGSN_NODE, &cfg_gsup_remote_port_cmd); + install_element(SGSN_NODE, &cfg_apn_ggsn_cmd); + install_element(SGSN_NODE, &cfg_apn_imsi_ggsn_cmd); return 0; } |