diff options
Diffstat (limited to 'src/gsm')
| -rw-r--r-- | src/gsm/lapd_core.c | 10 | ||||
| -rw-r--r-- | src/gsm/lapdm.c | 21 |
2 files changed, 25 insertions, 6 deletions
diff --git a/src/gsm/lapd_core.c b/src/gsm/lapd_core.c index b33cf6eb..f351308d 100644 --- a/src/gsm/lapd_core.c +++ b/src/gsm/lapd_core.c @@ -820,7 +820,12 @@ static int lapd_rx_u(struct msgb *msg, struct lapd_msg_ctx *lctx) "frame established state\n"); /* If link is lost on the remote side, we start over * and send DL-ESTABLISH indication again. */ - if (dl->v_send != dl->v_recv) { + /* Additionally, continue in case of content resoltion + * (GSM network). This happens, if the mobile has not + * yet received UA or another mobile (collision) tries + * to establish connection. The mobile must receive + * UA again. */ + if (!dl->cont_res && dl->v_send != dl->v_recv) { LOGP(DLLAPD, LOGL_INFO, "Remote reestablish\n"); mdl_error(MDL_CAUSE_SABM_MF, lctx); break; @@ -831,7 +836,8 @@ static int lapd_rx_u(struct msgb *msg, struct lapd_msg_ctx *lctx) #ifdef TEST_CONTENT_RESOLUTION_NETWORK dl->cont_res->data[0] ^= 0x01; #endif - if (memcmp(dl->cont_res, msg->data, length)) { + if (memcmp(dl->cont_res->data, msg->data, + length)) { LOGP(DLLAPD, LOGL_INFO, "Another SABM " "with diffrent content - " "ignoring!\n"); diff --git a/src/gsm/lapdm.c b/src/gsm/lapdm.c index 2bda48ae..71045aa1 100644 --- a/src/gsm/lapdm.c +++ b/src/gsm/lapdm.c @@ -687,7 +687,8 @@ int lapdm_phsap_up(struct osmo_prim_hdr *oph, struct lapdm_entity *le) if (oph->sap != SAP_GSM_PH) { LOGP(DLLAPD, LOGL_ERROR, "primitive for unknown SAP %u\n", oph->sap); - return -ENODEV; + rc = -ENODEV; + goto free; } switch (oph->primitive) { @@ -695,7 +696,8 @@ int lapdm_phsap_up(struct osmo_prim_hdr *oph, struct lapdm_entity *le) if (oph->operation != PRIM_OP_INDICATION) { LOGP(DLLAPD, LOGL_ERROR, "PH_DATA is not INDICATION %u\n", oph->operation); - return -ENODEV; + rc = -ENODEV; + goto free; } rc = l2_ph_data_ind(oph->msg, le, pp->u.data.chan_nr, pp->u.data.link_id); @@ -704,7 +706,8 @@ int lapdm_phsap_up(struct osmo_prim_hdr *oph, struct lapdm_entity *le) if (oph->operation != PRIM_OP_INDICATION) { LOGP(DLLAPD, LOGL_ERROR, "PH_RTS is not INDICATION %u\n", oph->operation); - return -ENODEV; + rc = -ENODEV; + goto free; } rc = l2_ph_data_conf(oph->msg, le); break; @@ -718,12 +721,22 @@ int lapdm_phsap_up(struct osmo_prim_hdr *oph, struct lapdm_entity *le) rc = l2_ph_chan_conf(oph->msg, le, pp->u.rach_ind.fn); break; default: - return -EIO; + rc = -EIO; + goto free; } break; + default: + LOGP(DLLAPD, LOGL_ERROR, "Unknown primitive %u\n", + oph->primitive); + rc = -EINVAL; + goto free; } return rc; + +free: + msgb_free(oph->msg); + return rc; } |