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#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <gsmd/usock.h>
#include <gsmd/event.h>
#include "gsmd.h"
#include "usock.h"
static struct gsmd_ucmd *build_event(u_int8_t type, u_int8_t subtype, u_int8_t len)
{
struct gsmd_ucmd *ucmd = malloc(sizeof(*ucmd)+len);
if (!ucmd)
return NULL;
ucmd->hdr.version = GSMD_PROTO_VERSION;
ucmd->hdr.msg_type = type;
ucmd->hdr.msg_subtype = subtype;
ucmd->hdr.len = len;
return ucmd;
}
static struct gsmd_ucmd *ucmd_copy(const struct gsmd_ucmd *orig)
{
int size = sizeof(*orig) + orig->hdr.len;
struct gsmd_ucmd *copy = malloc(size);
if (copy)
memcpy(copy, orig, size);
return copy;
}
static int usock_evt_send(struct gsmd *gsmd, struct gsmd_ucmd *ucmd, u_int32_t evt)
{
struct gsmd_user *gu;
int num_sent = 0;
llist_for_each_entry(gu, &gsmd->users, list) {
if (gu->subscriptions & (1 << evt)) {
struct gsmd_ucmd *cpy = ucmd_copy(ucmd);
llist_add_tail(&ucmd->list, &gu->finished_ucmds);
num_sent++;
ucmd = cpy;
if (!ucmd) {
fprintf(stderr, "can't allocate memory for copy of ucmd\n");
return num_sent;
}
}
}
return num_sent;
}
static int ring_parse(const char *buf, int len, const char *param,
struct gsmd *gsmd)
{
/* FIXME: generate ring event */
struct gsmd_ucmd *ucmd = build_event(GSMD_MSG_EVENT, GSMD_EVT_IN_CALL,
sizeof(struct gsmd_evt_auxdata));
struct gsmd_evt_auxdata *aux;
if (!ucmd)
return -ENOMEM;
aux = (struct gsmd_evt_auxdata *)ucmd->buf;
aux->u.call.type = GSMD_CALL_UNSPEC;
return usock_evt_send(gsmd, ucmd, GSMD_EVT_IN_CALL);
}
static int cring_parse(const char *buf, int len, const char *param, struct gsmd *gsmd)
{
struct gsmd_ucmd *ucmd = build_event(GSMD_MSG_EVENT, GSMD_EVT_IN_CALL,
sizeof(struct gsmd_evt_auxdata));
struct gsmd_evt_auxdata *aux;
if (!ucmd)
return -ENOMEM;
aux = (struct gsmd_evt_auxdata *) ucmd->buf;
if (!strcmp(param, "VOICE")) {
/* incoming voice call */
aux->u.call.type = GSMD_CALL_VOICE;
} else if (!strcmp(param, "SYNC")) {
aux->u.call.type = GSMD_CALL_DATA_SYNC;
} else if (!strcmp(param, "REL ASYNC")) {
aux->u.call.type = GSMD_CALL_DATA_REL_ASYNC;
} else if (!strcmp(param, "REL SYNC")) {
aux->u.call.type = GSMD_CALL_DATA_REL_SYNC;
} else if (!strcmp(param, "FAX")) {
aux->u.call.type = GSMD_CALL_FAX;
} else if (!strncmp(param, "GPRS ", 5)) {
/* FIXME: change event type to GPRS */
free(ucmd);
return 0;
}
/* FIXME: parse all the ALT* profiles, Chapter 6.11 */
return usock_evt_send(gsmd, ucmd, GSMD_EVT_IN_CALL);
}
/* Chapter 7.2, network registration */
static int creg_parse(const char *buf, int len, const char *param,
struct gsmd *gsmd)
{
const char *comma = strchr(param, ',');
struct gsmd_ucmd *ucmd = build_event(GSMD_MSG_EVENT, GSMD_EVT_NETREG,
sizeof(struct gsmd_evt_auxdata));
struct gsmd_evt_auxdata *aux;
if (!ucmd)
return -ENOMEM;
aux = (struct gsmd_evt_auxdata *) ucmd->buf;
aux->u.netreg.state = atoi(param);
if (comma) {
/* FIXME: we also have location area code and cell id to parse (hex) */
}
return usock_evt_send(gsmd, ucmd, GSMD_EVT_NETREG);
}
/* Chapter 7.11, call waiting */
static int ccwa_parse(const char *buf, int len, const char *param,
struct gsmd *gsmd)
{
const char *number;
u_int8_t type, class;
/* FIXME: parse */
return 0;
}
/* Chapter 7.14, unstructured supplementary service data */
static int cusd_parse(const char *buf, int len, const char *param,
struct gsmd *gsmd)
{
/* FIXME: parse */
return 0;
}
/* Chapter 7.15, advise of charge */
static int cccm_parse(const char *buf, int len, const char *param,
struct gsmd *gsmd)
{
/* FIXME: parse */
return 0;
}
/* Chapter 10.1.13, GPRS event reporting */
static int cgev_parse(const char *buf, int len, const char *param,
struct gsmd *gsmd)
{
/* FIXME: parse */
return 0;
}
/* Chapter 10.1.14, GPRS network registration status */
static int cgreg_parse(const char *buf, int len, const char *param,
struct gsmd *gsmd)
{
/* FIXME: parse */
return 0;
}
/* Chapter 7.6, calling line identification presentation */
static int clip_parse(const char *buf, int len, const char *param,
struct gsmd *gsmd)
{
struct gsmd_ucmd *ucmd = build_event(GSMD_MSG_EVENT, GSMD_EVT_IN_CLIP,
sizeof(struct gsmd_evt_auxdata));
struct gsmd_evt_auxdata *aux;
const char *comma = strchr(param, ',');
if (!ucmd)
return -ENOMEM;
aux = (struct gsmd_evt_auxdata *) ucmd->buf;
if (!comma)
return -EINVAL;
if (comma - param > GSMD_ADDR_MAXLEN)
return -EINVAL;
memcpy(aux->u.clip.addr.number, param, comma-param);
/* FIXME: parse of subaddr, etc. */
return usock_evt_send(gsmd, ucmd, GSMD_EVT_IN_CLIP);
}
/* Chapter 7.9, calling line identification presentation */
static int colp_parse(const char *buf, int len, const char *param,
struct gsmd *gsmd)
{
struct gsmd_ucmd *ucmd = build_event(GSMD_MSG_EVENT, GSMD_EVT_OUT_COLP,
sizeof(struct gsmd_evt_auxdata));
struct gsmd_evt_auxdata *aux;
const char *comma = strchr(param, ',');
if (!ucmd)
return -ENOMEM;
aux = (struct gsmd_evt_auxdata *) ucmd->buf;
if (!comma)
return -EINVAL;
if (comma - param > GSMD_ADDR_MAXLEN)
return -EINVAL;
memcpy(aux->u.colp.addr.number, param, comma-param);
/* FIXME: parse of subaddr, etc. */
return usock_evt_send(gsmd, ucmd, GSMD_EVT_OUT_COLP);
}
struct gsmd_unsolicit {
const char *prefix;
int (*parse)(const char *unsol, int len, const char *param, struct gsmd *gsmd);
};
static const struct gsmd_unsolicit gsm0707_unsolicit[] = {
{ "RING", &ring_parse },
{ "+CRING", &cring_parse },
{ "+CREG", &creg_parse },
{ "+CCWA", &ccwa_parse },
{ "+CUSD", &cusd_parse },
{ "+CCCM", &cccm_parse },
{ "+CGEV", &cgev_parse },
{ "+CGREG", &cgreg_parse },
{ "+CLIP", &clip_parse },
{ "+COLP", &colp_parse },
/*
{ "+CKEV", &ckev_parse },
{ "+CDEV", &cdev_parse },
{ "+CIEV", &ciev_parse },
{ "+CLAV", &clav_parse },
{ "+CCWV", &ccwv_parse },
{ "+CLAV", &clav_parse },
{ "+CSSU", &cssu_parse },
*/
};
/* called by midlevel parser if a response seems unsolicited */
int unsolicited_parse(struct gsmd *g, const char *buf, int len, const char *param)
{
int i;
for (i = 0; i < ARRAY_SIZE(gsm0707_unsolicit); i++) {
const char *colon;
if (strncmp(buf, gsm0707_unsolicit[i].prefix,
strlen(gsm0707_unsolicit[i].prefix)))
continue;
colon = strchr(buf, ':') + 1;
if (colon > buf+len)
colon = NULL;
return gsm0707_unsolicit[i].parse(buf, len, colon, g);
}
/* FIXME: call vendor-specific unsolicited code parser */
return -EINVAL;
}
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