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authorAndreas Eversberg <jolly@eversberg.eu>2016-06-19 17:41:42 +0200
committerAndreas Eversberg <jolly@eversberg.eu>2016-06-19 17:41:42 +0200
commitf87e36fa47eadfff43653f81fc8aae0fe538bfbe (patch)
tree322ed24cb1bf404ea19209b225765d664f429184
parent2b61a2ca4ae9f04852cc96c777537c3cb0217458 (diff)
AMPS: Detect difference between paging response and call response
Release call, if paging response was received, after call from fixed network has already been released.
-rw-r--r--src/amps/amps.c14
-rw-r--r--src/amps/frame.c7
2 files changed, 14 insertions, 7 deletions
diff --git a/src/amps/amps.c b/src/amps/amps.c
index 6430c7a..464ba45 100644
--- a/src/amps/amps.c
+++ b/src/amps/amps.c
@@ -648,15 +648,21 @@ void amps_rx_recc(amps_t *amps, uint8_t scm, uint32_t esn, uint32_t min1, uint16
}
} else
if (order == 0 && ordq == 0 && msg_type == 0) {
- trans = search_transaction_number(amps, min1, min2);
- if (!trans) {
- PDEBUG(DAMPS, DEBUG_INFO, "Call %s -> %s (ESN = %08x, %s)\n", callerid, dialing, esn, amps_scm(scm));
- } else {
+ if (!dialing)
PDEBUG(DAMPS, DEBUG_INFO, "Paging reply %s (ESN = %08x, %s)\n", callerid, esn, amps_scm(scm));
+ else
+ PDEBUG(DAMPS, DEBUG_INFO, "Call %s -> %s (ESN = %08x, %s)\n", callerid, dialing, esn, amps_scm(scm));
+ trans = search_transaction_number(amps, min1, min2);
+ if (!trans && !dialing) {
+ PDEBUG(DAMPS, DEBUG_NOTICE, "Paging reply, but call is already gone, rejecting call\n");
+ goto reject;
}
+ if (trans && dialing)
+ PDEBUG(DAMPS, DEBUG_NOTICE, "There is already a transaction for this phone. Cloning?\n");
vc = search_free_vc();
if (!vc) {
PDEBUG(DAMPS, DEBUG_NOTICE, "No free channel, rejecting call\n");
+reject:
if (!trans) {
trans = create_transaction(amps, TRANS_CALL_REJECT, min1, min2, 0, 0, 3, 0);
if (!trans) {
diff --git a/src/amps/frame.c b/src/amps/frame.c
index 7ebacfb..f30f5ef 100644
--- a/src/amps/frame.c
+++ b/src/amps/frame.c
@@ -3239,8 +3239,9 @@ static int amps_decode_word_recc(amps_t *amps, uint64_t word, int first)
amps->rx_recc_dialing[31] = digit2number[frame->ie[AMPS_IE_DIGIT_32]];
}
- if (msg_count >= 2 && nawc == 0) {
- amps_rx_recc(amps, amps->rx_recc_scm, amps->rx_recc_esn, amps->rx_recc_min1, amps->rx_recc_min2, amps->rx_recc_msg_type, amps->rx_recc_ordq, amps->rx_recc_order, amps->rx_recc_dialing);
+ if (msg_count >= 3 && nawc == 0) {
+ /* if no digit messages are present, send NULL as dial string (paging reply) */
+ amps_rx_recc(amps, amps->rx_recc_scm, amps->rx_recc_esn, amps->rx_recc_min1, amps->rx_recc_min2, amps->rx_recc_msg_type, amps->rx_recc_ordq, amps->rx_recc_order, (msg_count > 3) ? amps->rx_recc_dialing : NULL);
}
amps->rx_recc_word_count++;
@@ -3618,7 +3619,7 @@ int amps_decode_bits_recc(amps_t *amps, const char *bits, int first)
if (!strncmp(encode_bch(word_string, 28), word_string + 28, 12))
crc_ok++;
}
- if (crc_ok == i) {
+ if (crc_ok) {
PDEBUG(DFRAME, DEBUG_NOTICE, "Seems we RX FOCC frame due to loopback, ignoring!\n");
return 0;
}