[PATCH 2/3] NOKIA: Resend SABM on unknown TEI from LAPD

From: Pablo Neira Ayuso <pablo(a)gnumonks.org> --- openbsc/src/libbsc/bts_nokia_site.c | 9 ++++++++- 1 files changed, 8 insertions(+), 1 deletions(-) diff --git a/openbsc/src/libbsc/bts_nokia_site.c b/openbsc/src/libbsc/bts_nokia_site.c index 6d14bdd..b5bc2fe 100644 --- a/openbsc/src/libbsc/bts_nokia_site.c +++ b/openbsc/src/libbsc/bts_nokia_site.c @@ -84,7 +84,7 @@ static int shutdown_om(struct gsm_bts *bts) Attention: this has to be adapted for mISDN */ -static void start_sabm_in_line(struct e1inp_line *line, int start, int sapi) +void start_sabm_in_line(struct e1inp_line *line, int start, int sapi) { struct e1inp_sign_link *link; int i; @@ -162,6 +162,13 @@ static int inp_sig_cb(unsigned int subsys, unsigned int signal, break; } break; + case S_INP_TEI_UNKNOWN: + /* We are receiving LAPD frames with one TEI that we do not + * seem to know, likely that we (the BSC) stopped working + * and lost our local states. However, the BTS is already + * configured, we try to take over the RSL links. */ + start_sabm_in_line(isd->line, 1, SAPI_RSL); + break; } return 0; -- 1.7.1