diff options
Diffstat (limited to 'gtp/gtp.c')
| -rw-r--r-- | gtp/gtp.c | 120 |
1 files changed, 63 insertions, 57 deletions
@@ -2187,9 +2187,8 @@ int gtp_update_pdp_conf(struct gsn_t *gsn, int version, gsn->err_unknownpdp++; GTP_LOGPKG(LOGL_ERROR, peer, pack, len, "Unknown PDP context: %u\n", get_tei(pack)); - if (gsn->cb_conf) - gsn->cb_conf(type, EOF, NULL, cbp); - return EOF; + pdp = NULL; + goto err_out; } /* Register that we have received a valid teic from GGSN */ @@ -2200,23 +2199,12 @@ int gtp_update_pdp_conf(struct gsn_t *gsn, int version, gsn->invalid++; GTP_LOGPKG(LOGL_ERROR, peer, pack, len, "Invalid message format\n"); - if (gsn->cb_conf) - gsn->cb_conf(type, EOF, pdp, cbp); - /* if (gsn->cb_delete_context) gsn->cb_delete_context(pdp); - pdp_freepdp(pdp); */ - return EOF; + goto err_out; } /* Extract cause value (mandatory) */ if (gtpie_gettv1(ie, GTPIE_CAUSE, 0, &cause)) { - gsn->missing++; - GTP_LOGPKG(LOGL_ERROR, peer, pack, len, - "Missing mandatory information field\n"); - if (gsn->cb_conf) - gsn->cb_conf(type, EOF, pdp, cbp); - /* if (gsn->cb_delete_context) gsn->cb_delete_context(pdp); - pdp_freepdp(pdp); */ - return EOF; + goto err_missing; } /* Extract recovery (optional) */ @@ -2226,51 +2214,69 @@ int gtp_update_pdp_conf(struct gsn_t *gsn, int version, } /* Check all conditional information elements */ - if (GTPCAUSE_ACC_REQ != cause) { - if (gsn->cb_conf) - gsn->cb_conf(type, cause, pdp, cbp); - /* if (gsn->cb_delete_context) gsn->cb_delete_context(pdp); - pdp_freepdp(pdp); */ - return 0; - } else { - /* Check for missing conditionary information elements */ - if (!(gtpie_exist(ie, GTPIE_QOS_PROFILE0, 0) && - gtpie_exist(ie, GTPIE_REORDER, 0) && - gtpie_exist(ie, GTPIE_FL_DI, 0) && - gtpie_exist(ie, GTPIE_FL_C, 0) && - gtpie_exist(ie, GTPIE_CHARGING_ID, 0) && - gtpie_exist(ie, GTPIE_EUA, 0) && - gtpie_exist(ie, GTPIE_GSN_ADDR, 0) && - gtpie_exist(ie, GTPIE_GSN_ADDR, 1))) { - gsn->missing++; - GTP_LOGPKG(LOGL_ERROR, peer, pack, - len, - "Missing conditional information field\n"); - if (gsn->cb_conf) - gsn->cb_conf(type, EOF, pdp, cbp); - /* if (gsn->cb_delete_context) gsn->cb_delete_context(pdp); - pdp_freepdp(pdp); */ - return EOF; + /* TODO: This does not handle GGSN-initiated update responses */ + if (GTPCAUSE_ACC_REQ == cause) { + if (version == 0) { + if (gtpie_gettv0(ie, GTPIE_QOS_PROFILE0, 0, + &pdp->qos_neg0, + sizeof(pdp->qos_neg0))) { + goto err_missing; + } + + if (gtpie_gettv2(ie, GTPIE_FL_DI, 0, &pdp->flru)) { + goto err_missing; + } + + if (gtpie_gettv2(ie, GTPIE_FL_C, 0, &pdp->flrc)) { + goto err_missing; + } } - /* Update pdp with new values */ - gtpie_gettv0(ie, GTPIE_QOS_PROFILE0, 0, - pdp->qos_neg0, sizeof(pdp->qos_neg0)); - gtpie_gettv1(ie, GTPIE_REORDER, 0, &pdp->reorder); - gtpie_gettv2(ie, GTPIE_FL_DI, 0, &pdp->flru); - gtpie_gettv2(ie, GTPIE_FL_C, 0, &pdp->flrc); - gtpie_gettv4(ie, GTPIE_CHARGING_ID, 0, &pdp->cid); - gtpie_gettlv(ie, GTPIE_EUA, 0, &pdp->eua.l, - &pdp->eua.v, sizeof(pdp->eua.v)); - gtpie_gettlv(ie, GTPIE_GSN_ADDR, 0, &pdp->gsnrc.l, - &pdp->gsnrc.v, sizeof(pdp->gsnrc.v)); - gtpie_gettlv(ie, GTPIE_GSN_ADDR, 1, &pdp->gsnru.l, - &pdp->gsnru.v, sizeof(pdp->gsnru.v)); + if (version == 1) { + if (gtpie_gettv4(ie, GTPIE_TEI_DI, 0, &pdp->teid_gn)) { + goto err_missing; + } - if (gsn->cb_conf) - gsn->cb_conf(type, cause, pdp, cbp); - return 0; /* Succes */ + if (gtpie_gettv4(ie, GTPIE_TEI_C, 0, &pdp->teic_gn)) { + goto err_missing; + } + } + + if (gtpie_gettv4(ie, GTPIE_CHARGING_ID, 0, &pdp->cid)) { + goto err_missing; + } + + if (gtpie_gettlv(ie, GTPIE_GSN_ADDR, 0, &pdp->gsnrc.l, + &pdp->gsnrc.v, sizeof(pdp->gsnrc.v))) { + goto err_missing; + } + + if (gtpie_gettlv(ie, GTPIE_GSN_ADDR, 1, &pdp->gsnru.l, + &pdp->gsnru.v, sizeof(pdp->gsnru.v))) { + goto err_missing; + } + + if (version == 1) { + if (gtpie_gettlv + (ie, GTPIE_QOS_PROFILE, 0, &pdp->qos_neg.l, + &pdp->qos_neg.v, sizeof(pdp->qos_neg.v))) { + goto err_missing; + } + } } + + if (gsn->cb_conf) + gsn->cb_conf(type, cause, pdp, cbp); + return 0; /* Succes */ + +err_missing: + gsn->missing++; + GTP_LOGPKG(LOGL_ERROR, peer, pack, len, + "Missing information field\n"); +err_out: + if (gsn->cb_conf) + gsn->cb_conf(type, EOF, pdp, cbp); + return EOF; } /* API: Send Delete PDP Context Request */ |