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hep.c
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/*
* hep related functions
*
* Copyright (C) 2011-2014 Alexandr Dubovikov <alexandr.dubovikov@gmail.com>
*
* This file is part of Kamailio, a free SIP server.
*
* Kamailio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* Kamailio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "../../core/sr_module.h"
#include "../../core/dprint.h"
#include "../../core/events.h"
#include "../../core/ut.h"
#include "../../core/ip_addr.h"
#include "../../core/mem/mem.h"
#include "../../core/mem/shm_mem.h"
#include "../../lib/srdb1/db.h"
#include "../../core/receive.h"
#include "hep.h"
#include "sipcapture.h"
static int count = 0;
extern struct hep_timeinfo *heptime;
/* HEPv2 HEPv3 */
int hepv2_received(char *buf, unsigned int len, struct receive_info *ri);
int hepv3_received(char *buf, unsigned int len, struct receive_info *ri);
int parsing_hepv3_message(char *buf, unsigned int len);
/**
* HEP message
*/
/* int hep_msg_received(char * buf, unsigned int len, struct receive_info * ri) */
int hep_msg_received(sr_event_param_t *evp)
{
void **srevp;
char *buf;
unsigned *len;
struct receive_info *ri;
if(!hep_capture_on) {
LOG(L_ERR, "sipcapture:hep_msg_received HEP is not enabled\n");
return -1;
}
srevp = (void **)evp->data;
buf = (char *)srevp[0];
len = (unsigned *)srevp[1];
ri = (struct receive_info *)srevp[2];
correlation_id = NULL;
authkey = NULL;
count++;
struct hep_hdr *heph;
/* hep_hdr */
heph = (struct hep_hdr *)buf;
/* Check version */
if(heph->hp_v == 1 || heph->hp_v == 2) {
return hepv2_received(buf, *len, ri);
} else if(!memcmp(buf, "\x48\x45\x50\x33", 4)) {
return hepv3_received(buf, *len, ri);
} else {
LOG(L_ERR,
"ERROR: sipcapture:hep_msg_received: not supported version "
"or bad length: v:[%d] l:[%d]\n",
heph->hp_v, heph->hp_l);
return -1;
}
}
int hepv2_received(char *buf, unsigned int len, struct receive_info *ri)
{
int hl;
struct hep_hdr *heph;
struct ip_addr dst_ip, src_ip;
char *hep_payload, *end, *hep_ip;
struct hep_iphdr *hepiph = NULL;
struct hep_timehdr *heptime_tmp = NULL;
memset(heptime, 0, sizeof(struct hep_timeinfo));
struct hep_ip6hdr *hepip6h = NULL;
correlation_id = NULL;
authkey = NULL;
hep_offset = 0;
hl = hep_offset = sizeof(struct hep_hdr);
end = buf + len;
if(unlikely(len < hep_offset)) {
LOG(L_ERR,
"ERROR: sipcapture:hep_msg_received len less than offset "
"[%i] vs [%i]\n",
len, hep_offset);
return -1;
}
/* hep_hdr */
heph = (struct hep_hdr *)buf;
switch(heph->hp_f) {
case AF_INET:
hl += sizeof(struct hep_iphdr);
break;
case AF_INET6:
hl += sizeof(struct hep_ip6hdr);
break;
default:
LOG(L_ERR,
"ERROR: sipcapture:hep_msg_received: unsupported "
"family [%d]\n",
heph->hp_f);
return -1;
}
LM_DBG("header offset: %d af: %d\n", hl, (int)heph->hp_f);
/* PROTO */
if(heph->hp_p == IPPROTO_UDP)
ri->proto = PROTO_UDP;
else if(heph->hp_p == IPPROTO_TCP)
ri->proto = PROTO_TCP;
else if(heph->hp_p == IPPROTO_IDP)
ri->proto = PROTO_TLS; /* fake protocol */
#ifdef USE_SCTP
else if(heph->hp_p == IPPROTO_SCTP)
ri->proto = PROTO_SCTP;
#endif
else {
LOG(L_ERR,
"ERROR: sipcapture:hep_msg_received: unknown protocol [%d]\n",
heph->hp_p);
ri->proto = PROTO_NONE;
}
hep_ip = buf + sizeof(struct hep_hdr);
if(unlikely(hep_ip > end)) {
LOG(L_ERR, "hep_ip is over buf+len\n");
return -1;
}
switch(heph->hp_f) {
case AF_INET:
hep_offset += sizeof(struct hep_iphdr);
hepiph = (struct hep_iphdr *)hep_ip;
break;
case AF_INET6:
hep_offset += sizeof(struct hep_ip6hdr);
hepip6h = (struct hep_ip6hdr *)hep_ip;
break;
}
/* VOIP payload */
hep_payload = buf + hep_offset;
if(unlikely(hep_payload > end)) {
LOG(L_ERR, "hep_payload is over buf+len\n");
return -1;
}
/* timing */
if(heph->hp_v == 2) {
hep_offset += sizeof(struct hep_timehdr);
heptime_tmp = (struct hep_timehdr *)hep_payload;
heptime->tv_sec = to_le(heptime_tmp->tv_sec);
heptime->tv_usec = to_le(heptime_tmp->tv_usec);
heptime->captid = heptime_tmp->captid;
}
/* fill ip from the packet to dst_ip && to */
switch(heph->hp_f) {
case AF_INET:
dst_ip.af = src_ip.af = AF_INET;
dst_ip.len = src_ip.len = 4;
memcpy(&dst_ip.u.addr, &hepiph->hp_dst, 4);
memcpy(&src_ip.u.addr, &hepiph->hp_src, 4);
break;
case AF_INET6:
dst_ip.af = src_ip.af = AF_INET6;
dst_ip.len = src_ip.len = 16;
memcpy(&dst_ip.u.addr, &hepip6h->hp6_dst, 16);
memcpy(&src_ip.u.addr, &hepip6h->hp6_src, 16);
break;
}
ri->src_ip = src_ip;
ri->src_port = ntohs(heph->hp_sport);
ri->dst_ip = dst_ip;
ri->dst_port = ntohs(heph->hp_dport);
/* cut off the offset */
/*
* len -= offset;
* p = buf + offset;
* memmove(buf, p, BUF_SIZE+1);
*/
hep_payload = buf + hep_offset;
receive_msg(hep_payload, (unsigned int)(len - hep_offset), ri);
return -1;
}
/**
* HEP message
*/
int hepv3_received(char *buf, unsigned int len, struct receive_info *ri)
{
if(!parsing_hepv3_message(buf, len)) {
LM_ERR("couldn't parse hepv3 message\n");
return -2;
}
return -1;
}
int parsing_hepv3_message(char *buf, unsigned int len)
{
union sockaddr_union from;
union sockaddr_union to;
struct receive_info ri;
char *tmp;
struct ip_addr dst_ip, src_ip;
struct socket_info *si = 0;
int tmp_len, i;
char *payload = NULL;
unsigned int payload_len = 0;
struct hep_chunk *chunk;
struct hep_generic_recv *hg;
int totelem = 0;
int chunk_vendor = 0, chunk_type = 0, chunk_length = 0;
int total_length = 0;
hg = (struct hep_generic_recv *)pkg_malloc(sizeof(struct hep_generic_recv));
if(hg == NULL) {
PKG_MEM_ERROR_FMT("for hg\n");
return -1;
}
memset(hg, 0, sizeof(struct hep_generic_recv));
memset(heptime, 0, sizeof(struct hep_timeinfo));
/* HEADER */
hg->header = (hep_ctrl_t *)(buf);
/*Packet size */
total_length = ntohs(hg->header->length);
ri.src_port = 0;
ri.dst_port = 0;
dst_ip.af = 0;
src_ip.af = 0;
payload = NULL;
correlation_id = NULL;
authkey = NULL;
i = sizeof(hep_ctrl_t);
while(i < total_length) {
/*OUR TMP DATA */
tmp = buf + i;
chunk = (struct hep_chunk *)tmp;
chunk_vendor = ntohs(chunk->vendor_id);
chunk_type = ntohs(chunk->type_id);
chunk_length = ntohs(chunk->length);
/* if chunk_length */
if(chunk_length == 0) {
/* BAD LEN we drop this packet */
goto error;
}
/* SKIP not general Chunks */
if(chunk_vendor != 0) {
i += chunk_length;
} else {
switch(chunk_type) {
case 0:
goto error;
break;
case 1:
hg->ip_family = (hep_chunk_uint8_t *)(tmp);
i += chunk_length;
totelem++;
break;
case 2:
hg->ip_proto = (hep_chunk_uint8_t *)(tmp);
i += chunk_length;
totelem++;
break;
case 3:
hg->hep_src_ip4 = (hep_chunk_ip4_t *)(tmp);
i += chunk_length;
src_ip.af = AF_INET;
src_ip.len = 4;
src_ip.u.addr32[0] = hg->hep_src_ip4->data.s_addr;
totelem++;
break;
case 4:
hg->hep_dst_ip4 = (hep_chunk_ip4_t *)(tmp);
i += chunk_length;
dst_ip.af = AF_INET;
dst_ip.len = 4;
dst_ip.u.addr32[0] = hg->hep_dst_ip4->data.s_addr;
totelem++;
break;
case 5:
hg->hep_src_ip6 = (hep_chunk_ip6_t *)(tmp);
i += chunk_length;
src_ip.af = AF_INET6;
src_ip.len = 16;
memcpy(src_ip.u.addr, &hg->hep_src_ip6->data, 16);
totelem++;
break;
case 6:
hg->hep_dst_ip6 = (hep_chunk_ip6_t *)(tmp);
i += chunk_length;
dst_ip.af = AF_INET6;
dst_ip.len = 16;
memcpy(dst_ip.u.addr, &hg->hep_dst_ip6->data, 16);
totelem++;
break;
case 7:
hg->src_port = (hep_chunk_uint16_t *)(tmp);
ri.src_port = ntohs(hg->src_port->data);
i += chunk_length;
totelem++;
break;
case 8:
hg->dst_port = (hep_chunk_uint16_t *)(tmp);
ri.dst_port = ntohs(hg->dst_port->data);
i += chunk_length;
totelem++;
break;
case 9:
hg->time_sec = (hep_chunk_uint32_t *)(tmp);
heptime->tv_sec = ntohl(hg->time_sec->data);
i += chunk_length;
totelem++;
break;
case 10:
hg->time_usec = (hep_chunk_uint32_t *)(tmp);
heptime->tv_usec = ntohl(hg->time_usec->data);
i += chunk_length;
totelem++;
break;
case 11:
hg->proto_t = (hep_chunk_uint8_t *)(tmp);
i += chunk_length;
totelem++;
break;
case 12:
hg->capt_id = (hep_chunk_uint32_t *)(tmp);
heptime->captid = ntohl(hg->capt_id->data);
i += chunk_length;
totelem++;
break;
case 13:
hg->keep_tm = (hep_chunk_uint16_t *)(tmp);
i += chunk_length;
break;
case 14:
authkey = (char *)tmp + sizeof(hep_chunk_t);
i += chunk_length;
break;
case 15:
hg->payload_chunk = (hep_chunk_t *)(tmp);
payload = (char *)tmp + sizeof(hep_chunk_t);
payload_len = chunk_length - sizeof(hep_chunk_t);
i += chunk_length;
totelem++;
break;
case 17:
correlation_id = (char *)tmp + sizeof(hep_chunk_t);
i += chunk_length;
break;
default:
i += chunk_length;
break;
}
}
}
/* CHECK how much elements */
if(totelem < 9) {
LM_ERR("Not all elements [%d]\n", totelem);
goto done;
}
if(dst_ip.af == 0 || src_ip.af == 0) {
LM_ERR("NO IP's set\n");
goto done;
}
ip_addr2su(&to, &dst_ip, ri.dst_port);
ip_addr2su(&from, &src_ip, ri.src_port);
ri.src_su = from;
su2ip_addr(&ri.src_ip, &from);
su2ip_addr(&ri.dst_ip, &to);
if(hg->ip_proto->data == IPPROTO_TCP)
ri.proto = PROTO_TCP;
else if(hg->ip_proto->data == IPPROTO_UDP)
ri.proto = PROTO_UDP;
/* a little bit memory */
si = (struct socket_info *)pkg_malloc(sizeof(struct socket_info));
if(si == 0) {
PKG_MEM_ERROR_FMT("for socket_info\n");
goto error;
}
memset(si, 0, sizeof(struct socket_info));
si->address = ri.dst_ip;
si->socket = -1;
/* set port & proto */
si->port_no = ri.dst_port;
if(hg->ip_proto->data == IPPROTO_TCP)
si->proto = PROTO_TCP;
else if(hg->ip_proto->data == IPPROTO_UDP)
si->proto = PROTO_UDP;
si->flags = 0;
si->addr_info_lst = 0;
si->address_str.s = ip_addr2a(&si->address);
si->address_str.len = strlen(si->address_str.s);
si->port_no_str.s = int2str(si->port_no, &tmp_len);
si->port_no_str.len = tmp_len;
si->address_str.len = strlen(si->address_str.s);
si->name.len = si->address_str.len;
si->name.s = si->address_str.s;
ri.bind_address = si;
if(payload != NULL) {
/* and now receive message */
if(hg->proto_t->data == 5)
receive_logging_json_msg(payload, payload_len, hg, "rtcp_capture");
else if(hg->proto_t->data == 32)
receive_logging_json_msg(
payload, payload_len, hg, "report_capture");
else if(hg->proto_t->data == 99)
receive_logging_json_msg(
payload, payload_len, hg, "report_capture");
else if(hg->proto_t->data == 100)
receive_logging_json_msg(payload, payload_len, hg, "logs_capture");
else
receive_msg(payload, payload_len, &ri);
}
done:
if(si)
pkg_free(si);
if(hg)
pkg_free(hg);
return 1;
error:
if(si)
pkg_free(si);
if(hg)
pkg_free(hg);
return -1;
}
int hepv3_message_parse(char *buf, unsigned int len, sip_msg_t *msg)
{
union sockaddr_union from;
union sockaddr_union to;
char *tmp;
struct ip_addr dst_ip, src_ip;
struct socket_info *si = 0;
int i;
char *payload = NULL;
unsigned int payload_len = 0;
struct hep_chunk *chunk;
struct hep_generic_recv *hg;
int totelem = 0;
int chunk_vendor = 0, chunk_type = 0, chunk_length = 0;
int total_length = 0;
int ret = 0;
hg = (struct hep_generic_recv *)pkg_malloc(sizeof(struct hep_generic_recv));
if(hg == NULL) {
PKG_MEM_ERROR_FMT("for hg\n");
return -1;
}
memset(hg, 0, sizeof(struct hep_generic_recv));
memset(heptime, 0, sizeof(struct hep_timeinfo));
/* HEADER */
hg->header = (hep_ctrl_t *)(buf);
/*Packet size */
total_length = ntohs(hg->header->length);
dst_ip.af = 0;
src_ip.af = 0;
payload = NULL;
correlation_id = NULL;
authkey = NULL;
i = sizeof(hep_ctrl_t);
while(i < total_length) {
/*OUR TMP DATA */
tmp = buf + i;
chunk = (struct hep_chunk *)tmp;
chunk_vendor = ntohs(chunk->vendor_id);
chunk_type = ntohs(chunk->type_id);
chunk_length = ntohs(chunk->length);
/* if chunk_length */
if(chunk_length == 0) {
/* BAD LEN we drop this packet */
goto error;
}
/* SKIP not general Chunks */
if(chunk_vendor != 0) {
i += chunk_length;
} else {
switch(chunk_type) {
case 0:
goto error;
break;
case 1:
hg->ip_family = (hep_chunk_uint8_t *)(tmp);
i += chunk_length;
totelem++;
break;
case 2:
hg->ip_proto = (hep_chunk_uint8_t *)(tmp);
i += chunk_length;
totelem++;
break;
case 3:
hg->hep_src_ip4 = (hep_chunk_ip4_t *)(tmp);
i += chunk_length;
src_ip.af = AF_INET;
src_ip.len = 4;
src_ip.u.addr32[0] = hg->hep_src_ip4->data.s_addr;
totelem++;
break;
case 4:
hg->hep_dst_ip4 = (hep_chunk_ip4_t *)(tmp);
i += chunk_length;
dst_ip.af = AF_INET;
dst_ip.len = 4;
dst_ip.u.addr32[0] = hg->hep_dst_ip4->data.s_addr;
totelem++;
break;
case 5:
hg->hep_src_ip6 = (hep_chunk_ip6_t *)(tmp);
i += chunk_length;
src_ip.af = AF_INET6;
src_ip.len = 16;
memcpy(src_ip.u.addr, &hg->hep_src_ip6->data, 16);
totelem++;
break;
case 6:
hg->hep_dst_ip6 = (hep_chunk_ip6_t *)(tmp);
i += chunk_length;
dst_ip.af = AF_INET6;
dst_ip.len = 16;
memcpy(dst_ip.u.addr, &hg->hep_dst_ip6->data, 16);
totelem++;
break;
case 7:
hg->src_port = (hep_chunk_uint16_t *)(tmp);
msg->rcv.src_port = ntohs(hg->src_port->data);
i += chunk_length;
totelem++;
break;
case 8:
hg->dst_port = (hep_chunk_uint16_t *)(tmp);
msg->rcv.dst_port = ntohs(hg->dst_port->data);
i += chunk_length;
totelem++;
break;
case 9:
hg->time_sec = (hep_chunk_uint32_t *)(tmp);
heptime->tv_sec = ntohl(hg->time_sec->data);
i += chunk_length;
totelem++;
break;
case 10:
hg->time_usec = (hep_chunk_uint32_t *)(tmp);
heptime->tv_usec = ntohl(hg->time_usec->data);
i += chunk_length;
totelem++;
break;
case 11:
hg->proto_t = (hep_chunk_uint8_t *)(tmp);
i += chunk_length;
totelem++;
break;
case 12:
hg->capt_id = (hep_chunk_uint32_t *)(tmp);
i += chunk_length;
heptime->captid = ntohl(hg->capt_id->data);
totelem++;
break;
case 13:
hg->keep_tm = (hep_chunk_uint16_t *)(tmp);
i += chunk_length;
break;
case 14:
authkey = (char *)tmp + sizeof(hep_chunk_t);
i += chunk_length;
break;
case 15:
hg->payload_chunk = (hep_chunk_t *)(tmp);
payload = (char *)tmp + sizeof(hep_chunk_t);
payload_len = chunk_length - sizeof(hep_chunk_t);
i += chunk_length;
totelem++;
break;
case 17:
correlation_id = (char *)tmp + sizeof(hep_chunk_t);
i += chunk_length;
break;
default:
i += chunk_length;
break;
}
}
}
/* CHECK how much elements */
if(totelem < 9) {
LM_ERR("Not all elements [%d]\n", totelem);
goto done;
}
if(dst_ip.af == 0 || src_ip.af == 0) {
LM_ERR("NO IP's set\n");
goto done;
}
ip_addr2su(&to, &dst_ip, msg->rcv.dst_port);
ip_addr2su(&from, &src_ip, msg->rcv.src_port);
msg->rcv.src_su = from;
su2ip_addr(&msg->rcv.src_ip, &from);
su2ip_addr(&msg->rcv.dst_ip, &to);
if(hg->ip_proto->data == IPPROTO_TCP)
msg->rcv.proto = PROTO_TCP;
else if(hg->ip_proto->data == IPPROTO_UDP)
msg->rcv.proto = PROTO_UDP;
if(payload != NULL) {
ret = len - payload_len;
msg->buf = payload;
msg->len = payload_len;
}
done:
//if(si) pkg_free(si);
if(hg)
pkg_free(hg);
return ret;
error:
if(si)
pkg_free(si);
if(hg)
pkg_free(hg);
return -1;
}
int hepv2_message_parse(char *buf, unsigned int len, sip_msg_t *msg)
{
int hl;
struct hep_hdr *heph;
struct ip_addr dst_ip, src_ip;
char *hep_payload, *end, *hep_ip;
struct hep_iphdr *hepiph = NULL;
struct hep_timehdr *heptime_tmp = NULL;
memset(heptime, 0, sizeof(struct hep_timeinfo));
struct hep_ip6hdr *hepip6h = NULL;
correlation_id = NULL;
authkey = NULL;
hep_offset = 0;
hl = hep_offset = sizeof(struct hep_hdr);
end = buf + len;
if(unlikely(len < hep_offset)) {
LOG(L_ERR,
"ERROR: sipcapture:hep_msg_received len less than offset "
"[%i] vs [%i]\n",
len, hep_offset);
return -1;
}
/* hep_hdr */
heph = (struct hep_hdr *)buf;
switch(heph->hp_f) {
case AF_INET:
hl += sizeof(struct hep_iphdr);
break;
case AF_INET6:
hl += sizeof(struct hep_ip6hdr);
break;
default:
LOG(L_ERR,
"ERROR: sipcapture:hep_msg_received: unsupported "
"family [%d]\n",
heph->hp_f);
return -1;
}
LM_DBG("header offset: %d af: %d\n", hl, (int)heph->hp_f);
/* PROTO */
if(heph->hp_p == IPPROTO_UDP)
msg->rcv.proto = PROTO_UDP;
else if(heph->hp_p == IPPROTO_TCP)
msg->rcv.proto = PROTO_TCP;
else if(heph->hp_p == IPPROTO_IDP)
msg->rcv.proto = PROTO_TLS; /* fake protocol */
#ifdef USE_SCTP
else if(heph->hp_p == IPPROTO_SCTP)
msg->rcv.proto = PROTO_SCTP;
#endif
else {
LOG(L_ERR,
"ERROR: sipcapture:hep_msg_received: unknown protocol [%d]\n",
heph->hp_p);
msg->rcv.proto = PROTO_NONE;
}
hep_ip = buf + sizeof(struct hep_hdr);
if(unlikely(hep_ip > end)) {
LOG(L_ERR, "hep_ip is over buf+len\n");
return -1;
}
switch(heph->hp_f) {
case AF_INET:
hep_offset += sizeof(struct hep_iphdr);
hepiph = (struct hep_iphdr *)hep_ip;
break;
case AF_INET6:
hep_offset += sizeof(struct hep_ip6hdr);
hepip6h = (struct hep_ip6hdr *)hep_ip;
break;
}
/* VOIP payload */
hep_payload = buf + hep_offset;
if(unlikely(hep_payload > end)) {
LOG(L_ERR, "hep_payload is over buf+len\n");
return -1;
}
/* timing */
if(heph->hp_v == 2) {
hep_offset += sizeof(struct hep_timehdr);
heptime_tmp = (struct hep_timehdr *)hep_payload;
heptime->tv_sec = to_le(heptime_tmp->tv_sec);
heptime->tv_usec = to_le(heptime_tmp->tv_usec);
heptime->captid = heptime_tmp->captid;
}
/* fill ip from the packet to dst_ip && to */
switch(heph->hp_f) {
case AF_INET:
dst_ip.af = src_ip.af = AF_INET;
dst_ip.len = src_ip.len = 4;
memcpy(&dst_ip.u.addr, &hepiph->hp_dst, 4);
memcpy(&src_ip.u.addr, &hepiph->hp_src, 4);
break;
case AF_INET6:
dst_ip.af = src_ip.af = AF_INET6;
dst_ip.len = src_ip.len = 16;
memcpy(&dst_ip.u.addr, &hepip6h->hp6_dst, 16);
memcpy(&src_ip.u.addr, &hepip6h->hp6_src, 16);
break;
}
msg->rcv.src_ip = src_ip;
msg->rcv.src_port = ntohs(heph->hp_sport);
msg->rcv.dst_ip = dst_ip;
msg->rcv.dst_port = ntohs(heph->hp_dport);
return hep_offset;
}
int hepv3_get_chunk(struct sip_msg *msg, char *buf, unsigned int len,
int req_chunk, pv_param_t *param, pv_value_t *res)
{
str tmpstr;
char *tmp;
int i;
struct hep_chunk *chunk;
struct hep_generic_recv *hg;
int chunk_vendor = 0, chunk_type = 0, chunk_length = 0;
int total_length = 0;
int ret = 0;
static char ipstr[INET6_ADDRSTRLEN];
if(memcmp(buf, "\x48\x45\x50\x33", 4)
&& !memcmp(buf, "\x45\x45\x50\x31", 4)) {
LM_ERR("not hep 3 protocol");
pv_get_uintval(msg, param, res, -1);
return -1;
}
hg = (struct hep_generic_recv *)pkg_malloc(sizeof(struct hep_generic_recv));
if(hg == NULL) {
PKG_MEM_ERROR_FMT("for hg\n");
return -1;
}
memset(hg, 0, sizeof(struct hep_generic_recv));
/* HEADER */
hg->header = (hep_ctrl_t *)(buf);
/*Packet size */
total_length = ntohs(hg->header->length);
i = sizeof(hep_ctrl_t);
while(i < total_length) {
/*OUR TMP DATA */
tmp = buf + i;
chunk = (struct hep_chunk *)tmp;
chunk_vendor = ntohs(chunk->vendor_id);
chunk_type = ntohs(chunk->type_id);
chunk_length = ntohs(chunk->length);
/* if chunk_length */
if(chunk_length == 0) {
/* BAD LEN we drop this packet */
goto error;
}
/* SKIP not general Chunks */
if(chunk_vendor != 0) {
i += chunk_length;
} else {
if(chunk_type != req_chunk) {
i += chunk_length;
continue;
}
switch(chunk_type) {
case 0:
goto error;
break;
case 1:
hg->ip_family = (hep_chunk_uint8_t *)(tmp);
ret = pv_get_uintval(msg, param, res, hg->ip_family->data);
goto done;
case 2:
hg->ip_proto = (hep_chunk_uint8_t *)(tmp);
ret = pv_get_uintval(msg, param, res, hg->ip_proto->data);
goto done;
case 3:
hg->hep_src_ip4 = (hep_chunk_ip4_t *)(tmp);
inet_ntop(AF_INET, &(hg->hep_src_ip4->data), ipstr,
INET_ADDRSTRLEN);
tmpstr.s = ipstr;
tmpstr.len = strlen(ipstr);
ret = pv_get_strval(msg, param, res, &tmpstr);
goto done;
case 4:
hg->hep_dst_ip4 = (hep_chunk_ip4_t *)(tmp);
inet_ntop(AF_INET, &(hg->hep_dst_ip4->data), ipstr,
INET_ADDRSTRLEN);
tmpstr.s = ipstr;
tmpstr.len = strlen(ipstr);
ret = pv_get_strval(msg, param, res, &tmpstr);
goto done;
case 5:
hg->hep_src_ip6 = (hep_chunk_ip6_t *)(tmp);
inet_ntop(AF_INET6, &(hg->hep_src_ip6->data), ipstr,
INET6_ADDRSTRLEN);
tmpstr.s = ipstr;