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-rw-r--r--openbsc/src/input/dahdi.c165
1 files changed, 129 insertions, 36 deletions
diff --git a/openbsc/src/input/dahdi.c b/openbsc/src/input/dahdi.c
index 9d03eee65..21ee8357d 100644
--- a/openbsc/src/input/dahdi.c
+++ b/openbsc/src/input/dahdi.c
@@ -52,6 +52,8 @@
#include <openbsc/e1_input.h>
#include <openbsc/talloc.h>
+#include "lapd.h"
+
#define TS1_ALLOC_SIZE 300
struct prim_name {
@@ -95,8 +97,8 @@ static int handle_ts1_read(struct bsc_fd *bfd)
struct e1inp_sign_link *link;
struct msgb *msg = msgb_alloc(TS1_ALLOC_SIZE, "DAHDI TS1");
struct sockaddr_mISDN l2addr;
- struct mISDNhead *hh;
- socklen_t alen;
+ struct mISDNhead ah;
+ struct mISDNhead *hh = &ah;
int ret;
if (!msg)
@@ -104,27 +106,124 @@ static int handle_ts1_read(struct bsc_fd *bfd)
hh = (struct mISDNhead *) msg->data;
- alen = sizeof(l2addr);
- ret = recvfrom(bfd->fd, msg->data, 300, 0,
- (struct sockaddr *) &l2addr, &alen);
+ ret = read(bfd->fd, &msg->data, TS1_ALLOC_SIZE - 16);
if (ret < 0) {
- fprintf(stderr, "recvfrom error %s\n", strerror(errno));
- return ret;
- }
-
- if (alen != sizeof(l2addr)) {
- fprintf(stderr, "%s error len\n", __func__);
- return -EINVAL;
+ perror("read ");
}
-
msgb_put(msg, ret);
-
- DEBUGP(DMI, "alen =%d, dev(%d) channel(%d) sapi(%d) tei(%d)\n",
- alen, l2addr.dev, l2addr.channel, l2addr.sapi, l2addr.tei);
+ if (ret <= 3) {
+ perror("read ");
+ }
DEBUGP(DMI, "<= len = %d, prim(0x%x) id(0x%x): %s\n",
ret, hh->prim, hh->id, get_prim_name(hh->prim));
+ int ilen;
+ lapd_mph_type prim;
+ uint8_t *idata = lapd_receive(msg->data, msg->len, &ilen, &prim, bfd);
+
+ switch (prim) {
+ case 0: break;
+ case LAPD_MPH_ACTIVATE_IND: hh->prim = MPH_ACTIVATE_IND; break;
+ case LAPD_MPH_DEACTIVATE_IND: hh->prim = MPH_DEACTIVATE_IND; break;
+ case LAPD_DL_DATA_IND: hh->prim = DL_DATA_IND; break;
+ default: printf("ERROR: unknown prim\n");
+ };
+
+ int pass_on = (prim != 0);
+
+ if (!pass_on) {
+ return 0;
+ };
+
+ l2addr.sapi = msg->data[0] >> 2;
+ l2addr.tei = msg->data[1] >> 1;
+ msgb_pull(msg, 2);
+
+#if 0
+ switch (hh->prim) {
+ case DL_INFORMATION_IND:
+ DEBUGP(DMI, "got DL_INFORMATION_IND\n");
+ struct sockaddr_mISDN *sa = NULL;
+ char *lstr = "UNKN";
+
+ switch (l2addr.tei) {
+ case TEI_OML:
+ sa = &e1h->omladdr;
+ lstr = "OML";
+ break;
+ case TEI_RSL:
+ sa = &e1h->l2addr;
+ lstr = "RSL";
+ break;
+ default:
+ break;
+ }
+ if (sa) {
+ DEBUGP(DMI, "%s use channel(%d) sapi(%d) tei(%d) for now\n",
+ lstr, l2addr.channel, l2addr.sapi, l2addr.tei);
+ memcpy(sa, &l2addr, sizeof(l2addr));
+ }
+ break;
+ case DL_ESTABLISH_IND:
+ DEBUGP(DMI, "got DL_ESTABLISH_IND\n");
+ break;
+ case DL_ESTABLISH_CNF:
+ DEBUGP(DMI, "got DL_ESTABLISH_CNF\n");
+ break;
+ case DL_RELEASE_IND:
+ DEBUGP(DMI, "got DL_RELEASE_IND: E1 Layer 1 disappeared?\n");
+ break;
+#if 0
+ case MPH_ACTIVATE_IND:
+ DEBUGP(DMI, "got MPH_ACTIVATE_IND\n");
+ printf("tei %d, sapi %d\n", l2addr.tei, l2addr.sapi);
+ if (l2addr.tei == TEI_OML && l2addr.sapi == SAPI_OML)
+ e1h->cb(EVT_E1_OML_UP, e1h->bts);
+ else if (l2addr.tei == TEI_RSL && l2addr.sapi == SAPI_RSL)
+ e1h->cb(EVT_E1_RSL_UP, e1h->bts);
+ break;
+ case MPH_DEACTIVATE_IND:
+ DEBUGP(DMI, "got MPH_DEACTIVATE_IND: TEI link closed?\n");
+ if (l2addr.tei == TEI_OML && l2addr.sapi == SAPI_OML)
+ e1h->cb(EVT_E1_OML_DN, e1h->bts);
+ else if (l2addr.tei == TEI_RSL && l2addr.sapi == SAPI_RSL)
+ e1h->cb(EVT_E1_RSL_DN, e1h->bts);
+ break;
+#endif
+ case DL_DATA_IND:
+ DEBUGP(DMI, "got DL_DATA_IND\n");
+
+ ret = msg->len;
+ msg->l2h = msg->data + 2;// + MISDN_HEADER_LEN;
+
+#if 0
+ if (debug_mask & DMI) {
+ fprintf(stdout, "RX: ");
+ hexdump(msgb_l2(msg), ret - (msg->l2h - msg->data));// - MISDN_HEADER_LEN);
+ }
+#endif
+ switch (l2addr.tei) {
+ case TEI_OML:
+ ret = abis_nm_rcvmsg(msg);
+ break;
+ case TEI_RSL:
+ ret = abis_rsl_rcvmsg(msg);
+ break;
+ default:
+ fprintf(stderr, "DATA_IND for unknown TEI\n");
+ break;
+ }
+ break;
+ default:
+ DEBUGP(DMI, "got unexpected 0x%x prim\n", hh->prim);
+ break;
+ }
+#endif
+
+
+
+#if 1
switch (hh->prim) {
case DL_INFORMATION_IND:
/* mISDN tells us which channel number is allocated for this
@@ -167,6 +266,7 @@ static int handle_ts1_read(struct bsc_fd *bfd)
default:
break;
}
+#endif
return ret;
}
@@ -197,11 +297,10 @@ static int handle_ts1_write(struct bsc_fd *bfd)
unsigned int ts_nr = bfd->priv_nr;
struct e1inp_ts *e1i_ts = &line->ts[ts_nr-1];
struct e1inp_sign_link *sign_link;
- struct sockaddr_mISDN sa;
struct msgb *msg;
- struct mISDNhead *hh;
- u_int8_t *l2_data;
+ //u_int8_t *l2_data;
int ret;
+ //int no_oml = 0;
bfd->when &= ~BSC_FD_WRITE;
@@ -212,25 +311,17 @@ static int handle_ts1_write(struct bsc_fd *bfd)
return 0;
}
- l2_data = msg->data;
-
- /* prepend the mISDNhead */
- hh = (struct mISDNhead *) msgb_push(msg, sizeof(*hh));
- hh->prim = DL_DATA_REQ;
-
+#if 0
DEBUGP(DMI, "TX TEI(%d) SAPI(%d): %s\n", sign_link->tei,
sign_link->sapi, hexdump(l2_data, msg->len - MISDN_HEADER_LEN));
+#endif
- /* construct the sockaddr */
- sa.family = AF_ISDN;
- sa.sapi = sign_link->sapi;
- sa.dev = sign_link->tei;
- sa.channel = sign_link->driver.misdn.channel;
+ lapd_transmit(sign_link->tei, msg->data, msg->len, bfd);
+
+ ret = write(bfd->fd, msg->data, msg->len + 2);
- ret = sendto(bfd->fd, msg->data, msg->len, 0,
- (struct sockaddr *)&sa, sizeof(sa));
if (ret < 0)
- fprintf(stderr, "%s sendto failed %d\n", __func__, ret);
+ fprintf(stderr, "%s write failed %d\n", __func__, ret);
msgb_free(msg);
/* set tx delay timer for next event */
@@ -277,7 +368,8 @@ static int handle_tsX_read(struct bsc_fd *bfd)
unsigned int ts_nr = bfd->priv_nr;
struct e1inp_ts *e1i_ts = &line->ts[ts_nr-1];
struct msgb *msg = msgb_alloc(TSX_ALLOC_SIZE, "DAHDI TSx");
- struct mISDNhead *hh;
+ struct mISDNhead ah;
+ struct mISDNhead *hh = &ah;
int ret;
if (!msg)
@@ -285,7 +377,7 @@ static int handle_tsX_read(struct bsc_fd *bfd)
hh = (struct mISDNhead *) msg->data;
- ret = read(bfd->fd, msg->data, TSX_ALLOC_SIZE, 0);
+ ret = read(bfd->fd, msg->data, TSX_ALLOC_SIZE);
if (ret < 0) {
fprintf(stderr, "read error %s\n", strerror(errno));
return ret;
@@ -433,7 +525,8 @@ static int mi_e1_setup(struct e1inp_line *line, int release_l2)
int mi_e1_line_update(struct e1inp_line *line)
{
struct mISDN_devinfo devinfo;
- int sk, ret, cnt;
+ //int sk, ret, cnt;
+ int ret;
if (!line->driver) {
/* this must be the first update */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-29 18:52:08 +0000