some rudimentary tcap function

debian/patches/sipwise/tcap.patch

@@ -12,7 +12,7 @@
 +include ../../Makefile.modules
 --- /dev/null
 +++ b/modules/tcap/tcap_mod.c
-@@ -0,0 +1,37 @@
+@@ -0,0 +1,127 @@
 +#include <stdio.h>
 +#include <stdlib.h>
 +#include <unistd.h>
@@ -21,35 +21,125 @@
 +#include "../../sr_module.h"
 +#include "../../mod_fix.h"
 +#include "../../pvar.h"
++#include "../../parser/parse_content.h"
 +
 +MODULE_VERSION
 +
-+static int tcap(sip_msg_t *msg, char *su, char *sq);
++
++
++static str content_type;
++
++
++
++static int mod_init(void);
++static int tcap_extract_f(sip_msg_t *msg, char *su, char *sq);
++
++
 +
 +static cmd_export_t cmds[] = {
-+	{"tcap", (cmd_function)tcap, 2, fixup_spve_spve, 0,
-+	REQUEST_ROUTE | FAILURE_ROUTE},
++	{"tcap_extract", (cmd_function)tcap_extract_f, 2, fixup_spve_null, 0,
++	ANY_ROUTE},
 +	{0,}
 +};
 +
++
++
++static param_export_t params[] = {
++	{ "content_type",		STR_PARAM,	&content_type.s		},
++	{ 0, }
++};
++
++
++
 +struct module_exports exports = {
 +	"tcap",
 +	DEFAULT_DLFLAGS,
 +	cmds,
++	params,
 +	0,
 +	0,
 +	0,
 +	0,
-+	0,
-+	0,
++	mod_init,
 +	0,
 +	0,
 +	0
 +};
 +
-+static int tcap(sip_msg_t *msg, char *su, char *sq) {
++
++
++static int mod_init(void) {
++	if (!content_type.s)
++		content_type.s = "application/tcap";
++	content_type.len = strlen(content_type.s);
++
 +	return 0;
 +}
++
++
++
++static int tcap_extract_f(sip_msg_t *msg, char *su, char *sq) {
++	str body, spec, s;
++	static char buf[1024];
++	struct output_buffer out;
++	int_str avp_val, avp_name;
++	static unsigned short avp_type = 0;
++	pv_spec_t *avp_spec = NULL;
++
++	if (fixup_get_svalue(msg, (gparam_p) su, &spec))
++		goto error;
++
++	body.s = get_body(msg);
++	if (!body.s)
++		goto error;
++	body.len = get_content_length(msg);
++	if (!body.len)
++		goto error;
++
++	if (!msg->content_type)
++		goto error;
++	if (msg->content_type->body.len < content_type.len)
++		goto error;
++	if (strncasecmp(msg->content_type->body.s, content_type.s, content_type.len))
++		goto error;
++
++	OUTPUT_BUFFER_INIT(&out, buf);
++	if (tcap_extract(body.s, body.len, spec.s, &out))
++		goto error;
++
++
++
++
++	s.s = sq; s.len = strlen(s.s);
++	if (pv_locate_name(&s) != s.len)
++	{
++		LM_ERR("invalid parameter\n");
++		return -1;
++	}
++	if (((avp_spec = pv_cache_get(&s)) == NULL)
++			|| avp_spec->type!=PVT_AVP) {
++		LM_ERR("malformed or non AVP %s AVP definition\n", sq);
++		return -1;
++	}
++
++	if(pv_get_avp_name(0, &avp_spec->pvp, &avp_name, &avp_type)!=0)
++	{
++		LM_ERR("[%s]- invalid AVP definition\n", sq);
++		return -1;
++	}
++	avp_val.s.s = out.buf;
++	avp_val.s.len = out.used;
++	if (add_avp(AVP_VAL_STR | avp_type, avp_name, avp_val) != 0)
++	{
++		LM_ERR("Failed to add SDP avp");
++		return -1;
++	}
++
++	return 1;
++
++error:
++	return -1;
++}
 --- a/Makefile.groups
 +++ b/Makefile.groups
 @@ -13,7 +13,7 @@