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Make secipd parse at least protocol 04 (SIA-HS).

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This commit is contained in:
Wilco Baan Hofman 2012-10-07 23:12:14 +02:00
parent 24c1286e5f
commit cf462c2232
5 changed files with 97 additions and 73 deletions
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65
siahsd.c
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@ -29,72 +29,13 @@
*/
/*
* parse_message parses the string portion of the SIA-HS message
* and writes the event to the database.
* It returns nothing.
*/
STATUS parse_message(TALLOC_CTX *mem_ctx, struct siahs_packet *pkt) {
char *message = talloc_strdup(mem_ctx, pkt->message + strlen("MESSAGE "));
char *ptr = message;
char *prom = ptr;
char *pkt_prom;
char *code;
const configuration *conf = get_conf();
uint8_t i;
NO_MEM_RETURN(message);
/* Grab the first part, the prom */
while (*ptr != '\0' && *ptr != 'N') {
ptr++;
}
*ptr++ = '\0';
/* Grab the second part, SIA code */
code = ptr;
while (*ptr != '\0' && *ptr != ',') {
ptr++;
}
if (*ptr != '\0') *ptr++ = '\0';
/* The remaining ptr contains the human readable description string */
/* Assert that string prom is identical to hex representation of pkt->prom */
pkt_prom = talloc_asprintf(message, "%04x", pkt->prom);
NO_MEM_RETURN(pkt_prom);
if (strcmp(pkt_prom, prom) != 0) {
return ST_ASSERTION_FAILED;
}
/* Ignore alive! messages */
if (strcmp(code, "alive!") == 0) {
DEBUG(2, "Got keepalive packet from prom %s", prom);
/* FIXME We must update some keepalive status somewhere to generate offline messages */
return ST_OK;
}
/* Dispatch all configured event handlers */
for (i = 0; conf->event_handlers[i] != NULL; i++) {
conf->event_handlers[i](message, prom, code, ptr);
}
talloc_free(message);
return ST_OK;
}
/*
* send_reply sends a reply to a SIA-HS transmitter
* It requires a memory context, the socket from which to reply, the socket address to reply to, the original packet
* and a string with the reply message.
* It returns nothing.
*/
STATUS send_reply(TALLOC_CTX *mem_ctx, int sock, struct sockaddr_in from, struct siahs_packet *pkt, const char *string) {
static STATUS send_reply(TALLOC_CTX *mem_ctx, int sock, struct sockaddr_in from, struct siahs_packet *pkt, const char *string) {
int n;
uint8_t *reply;
int i;
@ -302,9 +243,11 @@ int main(int argc, char **argv) {
} else if (strncmp(pkt->message, "MESSAGE ", strlen("MESSAGE ")) == 0) {
char *pkt_prom;
send_reply(pkt, sock, from, pkt, "ACKNOWLEDGE MESSAGE");
parse_message(pkt, pkt);
pkt_prom = talloc_asprintf(pkt, "%04x", pkt->prom);
parse_siahs_message(pkt, pkt_prom, pkt->message + strlen("MESSAGE "));
} else {
DEBUG(0, "Could not parse this message:\n"