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Harald Welte gerrit-no-reply at lists.osmocom.org
Review at https://gerrit.osmocom.org/2082
lapd_core: Use 'struct value_string' for LAPD state names
We don't really use state numbers without bounds check into string
tables since March 2010, when value_string became part of libosmocore.
It's time to catch up, 7 years later...
Change-Id: I1dac7b4cb441a1119cc167112521e8b8aae62e63
---
M src/gsm/lapd_core.c
1 file changed, 33 insertions(+), 28 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/82/2082/1
diff --git a/src/gsm/lapd_core.c b/src/gsm/lapd_core.c
index 5ee88a4..0cc28a6 100644
--- a/src/gsm/lapd_core.c
+++ b/src/gsm/lapd_core.c
@@ -180,18 +180,23 @@
}
/* Figure B.2/Q.921 */
-const char *lapd_state_names[] = {
- "LAPD_STATE_NULL",
- "LAPD_STATE_TEI_UNASS",
- "LAPD_STATE_ASS_TEI_WAIT",
- "LAPD_STATE_EST_TEI_WAIT",
- "LAPD_STATE_IDLE",
- "LAPD_STATE_SABM_SENT",
- "LAPD_STATE_DISC_SENT",
- "LAPD_STATE_MF_EST",
- "LAPD_STATE_TIMER_RECOV",
-
+const struct value_string lapd_state_names[] = {
+ OSMO_VALUE_STRING(LAPD_STATE_NULL),
+ OSMO_VALUE_STRING(LAPD_STATE_TEI_UNASS),
+ OSMO_VALUE_STRING(LAPD_STATE_ASS_TEI_WAIT),
+ OSMO_VALUE_STRING(LAPD_STATE_EST_TEI_WAIT),
+ OSMO_VALUE_STRING(LAPD_STATE_IDLE),
+ OSMO_VALUE_STRING(LAPD_STATE_SABM_SENT),
+ OSMO_VALUE_STRING(LAPD_STATE_DISC_SENT),
+ OSMO_VALUE_STRING(LAPD_STATE_MF_EST),
+ OSMO_VALUE_STRING(LAPD_STATE_TIMER_RECOV),
+ { 0, NULL }
};
+
+static inline const char *lapd_state_name(enum lapd_state state)
+{
+ return get_value_string(lapd_state_names, state);
+}
static void lapd_start_t200(struct lapd_datalink *dl)
{
@@ -228,7 +233,7 @@
static void lapd_dl_newstate(struct lapd_datalink *dl, uint32_t state)
{
LOGP(DLLAPD, LOGL_INFO, "new state %s -> %s (dl=%p)\n",
- lapd_state_names[dl->state], lapd_state_names[state], dl);
+ lapd_state_name(dl->state), lapd_state_name(state), dl);
if (state != LAPD_STATE_MF_EST && dl->state == LAPD_STATE_MF_EST) {
/* stop T203 on leaving MF EST state, if running */
@@ -381,7 +386,7 @@
LOGP(DLLAPD, LOGL_NOTICE,
"sending MDL-ERROR-IND cause %d from state %s (dl=%p)\n",
- cause, lapd_state_names[dl->state], dl);
+ cause, lapd_state_name(dl->state), dl);
osmo_prim_init(&dp.oph, 0, PRIM_MDL_ERROR, PRIM_OP_INDICATION, NULL);
dp.u.error_ind.cause = cause;
return dl->send_dlsap(&dp, lctx);
@@ -550,7 +555,7 @@
struct lapd_datalink *dl = data;
LOGP(DLLAPD, LOGL_INFO, "Timeout T200 state=%s (dl=%p)\n",
- lapd_state_names[dl->state], dl);
+ lapd_state_name(dl->state), dl);
switch (dl->state) {
case LAPD_STATE_SABM_SENT:
@@ -669,7 +674,7 @@
break;
default:
LOGP(DLLAPD, LOGL_INFO, "T200 expired in unexpected "
- "dl->state %s (dl=%p)\n", lapd_state_names[dl->state], dl);
+ "dl->state %s (dl=%p)\n", lapd_state_name(dl->state), dl);
}
}
@@ -679,7 +684,7 @@
struct lapd_datalink *dl = data;
LOGP(DLLAPD, LOGL_INFO, "Timeout T203 state=%s (dl=%p)\n",
- lapd_state_names[dl->state], dl);
+ lapd_state_name(dl->state), dl);
if (dl->state != LAPD_STATE_MF_EST) {
LOGP(DLLAPD, LOGL_ERROR, "T203 fired outside MF EST state, "
@@ -796,7 +801,7 @@
op = PRIM_OP_INDICATION;
LOGP(DLLAPD, LOGL_INFO, "SABM(E) received in state %s (dl=%p)\n",
- lapd_state_names[dl->state], dl);
+ lapd_state_name(dl->state), dl);
/* 5.7.1 */
dl->seq_err_cond = 0;
/* G.2.2 Wrong value of the C/R bit */
@@ -843,7 +848,7 @@
if (!dl->cont_res) {
LOGP(DLLAPD, LOGL_INFO, "SABM command not "
"allowed in state %s (dl=%p)\n",
- lapd_state_names[dl->state], dl);
+ lapd_state_name(dl->state), dl);
mdl_error(MDL_CAUSE_SABM_MF, lctx);
msgb_free(msg);
return 0;
@@ -881,7 +886,7 @@
if (dl->tx_hist[0].msg && dl->tx_hist[0].msg->len) {
LOGP(DLLAPD, LOGL_NOTICE, "SABM not allowed "
"during contention resolution (state=%s, dl=%p)\n",
- lapd_state_names[dl->state], dl);
+ lapd_state_name(dl->state), dl);
mdl_error(MDL_CAUSE_SABM_INFO_NOTALL, lctx);
}
lapd_send_ua(lctx, length, msg->l3h);
@@ -923,7 +928,7 @@
break;
case LAPD_U_DM:
LOGP(DLLAPD, LOGL_INFO, "DM received in state %s (dl=%p)\n",
- lapd_state_names[dl->state], dl);
+ lapd_state_name(dl->state), dl);
/* G.2.2 Wrong value of the C/R bit */
if (lctx->cr == dl->cr.rem2loc.cmd) {
LOGP(DLLAPD, LOGL_ERROR,
@@ -1046,7 +1051,7 @@
op = PRIM_OP_INDICATION;
LOGP(DLLAPD, LOGL_INFO, "DISC received in state %s (dl=%p)\n",
- lapd_state_names[dl->state], dl);
+ lapd_state_name(dl->state), dl);
/* flush tx and send buffers */
lapd_dl_flush_tx(dl);
lapd_dl_flush_send(dl);
@@ -1119,7 +1124,7 @@
break;
case LAPD_U_UA:
LOGP(DLLAPD, LOGL_INFO, "UA received in state %s (dl=%p)\n",
- lapd_state_names[dl->state], dl);
+ lapd_state_name(dl->state), dl);
/* G.2.2 Wrong value of the C/R bit */
if (lctx->cr == dl->cr.rem2loc.cmd) {
LOGP(DLLAPD, LOGL_ERROR, "UA indicates command "
@@ -1279,7 +1284,7 @@
switch (lctx->s_u) {
case LAPD_S_RR:
LOGP(DLLAPD, LOGL_INFO, "RR received in state %s (dl=%p)\n",
- lapd_state_names[dl->state], dl);
+ lapd_state_name(dl->state), dl);
/* 5.5.3.1: Acknowlege all tx frames up the the N(R)-1 */
lapd_acknowledge(lctx);
@@ -1323,7 +1328,7 @@
break;
case LAPD_S_RNR:
LOGP(DLLAPD, LOGL_INFO, "RNR received in state %s (dl=%p)\n",
- lapd_state_names[dl->state], dl);
+ lapd_state_name(dl->state), dl);
/* 5.5.3.1: Acknowlege all tx frames up the the N(R)-1 */
lapd_acknowledge(lctx);
@@ -1367,7 +1372,7 @@
break;
case LAPD_S_REJ:
LOGP(DLLAPD, LOGL_INFO, "REJ received in state %s (dl=%p)\n",
- lapd_state_names[dl->state], dl);
+ lapd_state_name(dl->state), dl);
/* 5.5.3.1: Acknowlege all tx frames up the the N(R)-1 */
lapd_acknowledge(lctx);
@@ -1491,7 +1496,7 @@
int rc;
LOGP(DLLAPD, LOGL_INFO, "I received in state %s on SAPI(%u) (dl=%p)\n",
- lapd_state_names[dl->state], lctx->sapi, dl);
+ lapd_state_name(dl->state), lctx->sapi, dl);
/* G.2.2 Wrong value of the C/R bit */
if (lctx->cr == dl->cr.rem2loc.resp) {
@@ -2223,13 +2228,13 @@
if (i == L2DOWNSLLEN) {
LOGP(DLLAPD, LOGL_NOTICE, "Message %u/%u unhandled at this "
"state %s. (dl=%p)\n", dp->oph.primitive,
- dp->oph.operation, lapd_state_names[dl->state], dl);
+ dp->oph.operation, lapd_state_name(dl->state), dl);
msgb_free(msg);
return 0;
}
LOGP(DLLAPD, LOGL_INFO, "Message %s received in state %s (dl=%p)\n",
- l2downstatelist[i].name, lapd_state_names[dl->state], dl);
+ l2downstatelist[i].name, lapd_state_name(dl->state), dl);
rc = l2downstatelist[i].rout(dp, lctx);
--
To view, visit https://gerrit.osmocom.org/2082
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I1dac7b4cb441a1119cc167112521e8b8aae62e63
Gerrit-PatchSet: 1
Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Owner: Harald Welte <laforge at gnumonks.org>