summaryrefslogtreecommitdiffstats
path: root/sys/netinet/libalias/alias_skinny.c
diff options
context:
space:
mode:
authordes <des@FreeBSD.org>2004-03-16 21:30:41 +0000
committerdes <des@FreeBSD.org>2004-03-16 21:30:41 +0000
commit3cb81148d8a83b1e6c1a65937f9e6310ba617894 (patch)
treeb367873b0bbb14ba0adf2f65c33ec1670b035d30 /sys/netinet/libalias/alias_skinny.c
parent0354260aab76815ce0d09458a84211e4b9e58979 (diff)
downloadFreeBSD-src-3cb81148d8a83b1e6c1a65937f9e6310ba617894.zip
FreeBSD-src-3cb81148d8a83b1e6c1a65937f9e6310ba617894.tar.gz
Run through indent(1) so I can read the code without getting a headache.
The result isn't quite knf, but it's knfer than the original, and far more consistent.
Diffstat (limited to 'sys/netinet/libalias/alias_skinny.c')
-rw-r--r--sys/netinet/libalias/alias_skinny.c370
1 files changed, 185 insertions, 185 deletions
diff --git a/sys/netinet/libalias/alias_skinny.c b/sys/netinet/libalias/alias_skinny.c
index d674893..3c482b4 100644
--- a/sys/netinet/libalias/alias_skinny.c
+++ b/sys/netinet/libalias/alias_skinny.c
@@ -60,10 +60,10 @@
* has answered. The phone then sends back an Open Receive Channel
* Acknowledgement. In this packet, the phone sends its IP address again,
* and the UDP port over which the voice traffic should flow. These values
- * need translation. Right after the Open Receive Channel Acknowledgement,
+ * need translation. Right after the Open Receive Channel Acknowledgement,
* the Call Manager sends a Start Media Transmission message indicating the
- * call is connected. This message contains the IP address and UDP port
- * number of the remote (called) party. Once this message is translated, the
+ * call is connected. This message contains the IP address and UDP port
+ * number of the remote (called) party. Once this message is translated, the
* call can commence. The called part sends the first UDP packet to the
* calling phone at the pre-arranged UDP port in the Open Receive Channel
* Acknowledgement.
@@ -81,258 +81,258 @@
#define START_MEDIATX 0x0000008a
struct skinny_header {
- u_int32_t len;
- u_int32_t reserved;
- u_int32_t msgId;
+ u_int32_t len;
+ u_int32_t reserved;
+ u_int32_t msgId;
};
struct RegisterMessage {
- u_int32_t msgId;
- char devName[16];
- u_int32_t uid;
- u_int32_t instance;
- u_int32_t ipAddr;
- u_char devType;
- u_int32_t maxStreams;
+ u_int32_t msgId;
+ char devName [16];
+ u_int32_t uid;
+ u_int32_t instance;
+ u_int32_t ipAddr;
+ u_char devType;
+ u_int32_t maxStreams;
};
struct IpPortMessage {
- u_int32_t msgId;
- u_int32_t stationIpPort; /* Note: Skinny uses 32-bit port
- * numbers */
+ u_int32_t msgId;
+ u_int32_t stationIpPort; /* Note: Skinny uses 32-bit port
+ * numbers */
};
struct OpenReceiveChannelAck {
- u_int32_t msgId;
- u_int32_t status;
- u_int32_t ipAddr;
- u_int32_t port;
- u_int32_t passThruPartyID;
+ u_int32_t msgId;
+ u_int32_t status;
+ u_int32_t ipAddr;
+ u_int32_t port;
+ u_int32_t passThruPartyID;
};
struct StartMediaTransmission {
- u_int32_t msgId;
- u_int32_t conferenceID;
- u_int32_t passThruPartyID;
- u_int32_t remoteIpAddr;
- u_int32_t remotePort;
- u_int32_t MSPacket;
- u_int32_t payloadCap;
- u_int32_t precedence;
- u_int32_t silenceSuppression;
- u_short maxFramesPerPacket;
- u_int32_t G723BitRate;
+ u_int32_t msgId;
+ u_int32_t conferenceID;
+ u_int32_t passThruPartyID;
+ u_int32_t remoteIpAddr;
+ u_int32_t remotePort;
+ u_int32_t MSPacket;
+ u_int32_t payloadCap;
+ u_int32_t precedence;
+ u_int32_t silenceSuppression;
+ u_short maxFramesPerPacket;
+ u_int32_t G723BitRate;
};
typedef enum {
- ClientToServer = 0,
- ServerToClient = 1
+ ClientToServer = 0,
+ ServerToClient = 1
} ConvDirection;
static int
alias_skinny_reg_msg(struct RegisterMessage *reg_msg, struct ip *pip,
- struct tcphdr *tc, struct alias_link *link,
- ConvDirection direction)
+ struct tcphdr *tc, struct alias_link *link,
+ ConvDirection direction)
{
- reg_msg->ipAddr = (u_int32_t) GetAliasAddress(link).s_addr;
+ reg_msg->ipAddr = (u_int32_t) GetAliasAddress(link).s_addr;
- tc->th_sum = 0;
- tc->th_sum = TcpChecksum(pip);
+ tc->th_sum = 0;
+ tc->th_sum = TcpChecksum(pip);
- return 0;
+ return 0;
}
static int
alias_skinny_startmedia(struct StartMediaTransmission *start_media,
- struct ip *pip, struct tcphdr *tc,
- struct alias_link *link, u_int32_t localIpAddr,
- ConvDirection direction)
+ struct ip *pip, struct tcphdr *tc,
+ struct alias_link *link, u_int32_t localIpAddr,
+ ConvDirection direction)
{
- struct in_addr dst, src;
+ struct in_addr dst, src;
- dst.s_addr = start_media->remoteIpAddr;
- src.s_addr = localIpAddr;
+ dst.s_addr = start_media->remoteIpAddr;
+ src.s_addr = localIpAddr;
- /* XXX I should probably handle in bound global translations as well. */
+ /*
+ * XXX I should probably handle in bound global translations as
+ * well.
+ */
- return 0;
+ return 0;
}
static int
alias_skinny_port_msg(struct IpPortMessage *port_msg, struct ip *pip,
- struct tcphdr *tc, struct alias_link *link,
- ConvDirection direction)
+ struct tcphdr *tc, struct alias_link *link,
+ ConvDirection direction)
{
- port_msg->stationIpPort = (u_int32_t) ntohs(GetAliasPort(link));
+ port_msg->stationIpPort = (u_int32_t) ntohs(GetAliasPort(link));
- tc->th_sum = 0;
- tc->th_sum = TcpChecksum(pip);
+ tc->th_sum = 0;
+ tc->th_sum = TcpChecksum(pip);
- return 0;
+ return 0;
}
static int
alias_skinny_opnrcvch_ack(struct libalias *la, struct OpenReceiveChannelAck *opnrcvch_ack,
- struct ip * pip, struct tcphdr *tc,
- struct alias_link *link, u_int32_t *localIpAddr,
- ConvDirection direction)
+ struct ip *pip, struct tcphdr *tc,
+ struct alias_link *link, u_int32_t * localIpAddr,
+ ConvDirection direction)
{
- struct in_addr null_addr;
- struct alias_link *opnrcv_link;
- u_int32_t localPort;
+ struct in_addr null_addr;
+ struct alias_link *opnrcv_link;
+ u_int32_t localPort;
- *localIpAddr = (u_int32_t) opnrcvch_ack->ipAddr;
- localPort = opnrcvch_ack->port;
+ *localIpAddr = (u_int32_t) opnrcvch_ack->ipAddr;
+ localPort = opnrcvch_ack->port;
- null_addr.s_addr = INADDR_ANY;
- opnrcv_link = FindUdpTcpOut(la, pip->ip_src, null_addr,
- htons((u_short) opnrcvch_ack->port), 0,
- IPPROTO_UDP, 1);
- opnrcvch_ack->ipAddr = (u_int32_t) GetAliasAddress(opnrcv_link).s_addr;
- opnrcvch_ack->port = (u_int32_t) ntohs(GetAliasPort(opnrcv_link));
+ null_addr.s_addr = INADDR_ANY;
+ opnrcv_link = FindUdpTcpOut(la, pip->ip_src, null_addr,
+ htons((u_short) opnrcvch_ack->port), 0,
+ IPPROTO_UDP, 1);
+ opnrcvch_ack->ipAddr = (u_int32_t) GetAliasAddress(opnrcv_link).s_addr;
+ opnrcvch_ack->port = (u_int32_t) ntohs(GetAliasPort(opnrcv_link));
- tc->th_sum = 0;
- tc->th_sum = TcpChecksum(pip);
+ tc->th_sum = 0;
+ tc->th_sum = TcpChecksum(pip);
- return 0;
+ return 0;
}
void
AliasHandleSkinny(struct libalias *la, struct ip *pip, struct alias_link *link)
{
- int hlen, tlen, dlen;
- struct tcphdr *tc;
- u_int32_t msgId, len, t, lip;
- struct skinny_header *sd;
- int orig_len, skinny_hdr_len = sizeof(struct skinny_header);
- ConvDirection direction;
-
- tc = (struct tcphdr *) ((char *)pip + (pip->ip_hl << 2));
- hlen = (pip->ip_hl + tc->th_off) << 2;
- tlen = ntohs(pip->ip_len);
- dlen = tlen - hlen;
-
- sd = (struct skinny_header *) ((char *)pip + hlen);
-
- /*
- * XXX This direction is reserved for future use. I still need to
- * handle the scenario where the call manager is on the inside, and
- * the calling phone is on the global outside.
- */
- if (ntohs(tc->th_dport) == la->skinnyPort) {
- direction = ClientToServer;
- } else if (ntohs(tc->th_sport) == la->skinnyPort) {
- direction = ServerToClient;
- } else {
+ int hlen, tlen, dlen;
+ struct tcphdr *tc;
+ u_int32_t msgId, len, t, lip;
+ struct skinny_header *sd;
+ int orig_len, skinny_hdr_len = sizeof(struct skinny_header);
+ ConvDirection direction;
+
+ tc = (struct tcphdr *)((char *)pip + (pip->ip_hl << 2));
+ hlen = (pip->ip_hl + tc->th_off) << 2;
+ tlen = ntohs(pip->ip_len);
+ dlen = tlen - hlen;
+
+ sd = (struct skinny_header *)((char *)pip + hlen);
+
+ /*
+ * XXX This direction is reserved for future use. I still need to
+ * handle the scenario where the call manager is on the inside, and
+ * the calling phone is on the global outside.
+ */
+ if (ntohs(tc->th_dport) == la->skinnyPort) {
+ direction = ClientToServer;
+ } else if (ntohs(tc->th_sport) == la->skinnyPort) {
+ direction = ServerToClient;
+ } else {
#ifdef DEBUG
- fprintf(stderr,
- "PacketAlias/Skinny: Invalid port number, not a Skinny packet\n");
+ fprintf(stderr,
+ "PacketAlias/Skinny: Invalid port number, not a Skinny packet\n");
#endif
- return;
- }
-
- orig_len = dlen;
- /*
- * Skinny packets can contain many messages. We need to loop through
- * the packet using len to determine message boundaries. This comes
- * into play big time with port messages being in the same packet as
- * register messages. Also, open receive channel acks are
- * usually buried in a pakcet some 400 bytes long.
- */
- while (dlen >= skinny_hdr_len) {
- len = (sd->len);
- msgId = (sd->msgId);
- t = len;
-
- if (t < 0 || t > orig_len || t > dlen) {
+ return;
+ }
+
+ orig_len = dlen;
+ /*
+ * Skinny packets can contain many messages. We need to loop
+ * through the packet using len to determine message boundaries.
+ * This comes into play big time with port messages being in the
+ * same packet as register messages. Also, open receive channel
+ * acks are usually buried in a pakcet some 400 bytes long.
+ */
+ while (dlen >= skinny_hdr_len) {
+ len = (sd->len);
+ msgId = (sd->msgId);
+ t = len;
+
+ if (t < 0 || t > orig_len || t > dlen) {
#ifdef DEBUG
- fprintf(stderr,
- "PacketAlias/Skinny: Not a skinny packet, invalid length \n");
+ fprintf(stderr,
+ "PacketAlias/Skinny: Not a skinny packet, invalid length \n");
#endif
- return;
- }
- switch (msgId) {
- case REG_MSG:
- {
- struct RegisterMessage *reg_mesg;
-
- if (len < sizeof(struct RegisterMessage)) {
+ return;
+ }
+ switch (msgId) {
+ case REG_MSG: {
+ struct RegisterMessage *reg_mesg;
+
+ if (len < sizeof(struct RegisterMessage)) {
#ifdef DEBUG
- fprintf(stderr,
- "PacketAlias/Skinny: Not a skinny packet, bad registration message\n");
+ fprintf(stderr,
+ "PacketAlias/Skinny: Not a skinny packet, bad registration message\n");
#endif
- return;
- }
- reg_mesg = (struct RegisterMessage *) & sd->msgId;
+ return;
+ }
+ reg_mesg = (struct RegisterMessage *)&sd->msgId;
#ifdef DEBUG
- fprintf(stderr,
- "PacketAlias/Skinny: Received a register message");
+ fprintf(stderr,
+ "PacketAlias/Skinny: Received a register message");
#endif
- alias_skinny_reg_msg(reg_mesg, pip, tc, link, direction);
- }
- break;
- case IP_PORT_MSG:
- {
- struct IpPortMessage *port_mesg;
- if (len < sizeof(struct IpPortMessage)) {
+ alias_skinny_reg_msg(reg_mesg, pip, tc, link, direction);
+ break;
+ }
+ case IP_PORT_MSG: {
+ struct IpPortMessage *port_mesg;
+
+ if (len < sizeof(struct IpPortMessage)) {
#ifdef DEBUG
- fprintf(stderr,
- "PacketAlias/Skinny: Not a skinny packet, port message\n");
+ fprintf(stderr,
+ "PacketAlias/Skinny: Not a skinny packet, port message\n");
#endif
- return;
- }
+ return;
+ }
#ifdef DEBUG
- fprintf(stderr
- "PacketAlias/Skinny: Received ipport message\n");
+ fprintf(stderr
+ "PacketAlias/Skinny: Received ipport message\n");
#endif
- port_mesg = (struct IpPortMessage *) & sd->msgId;
- alias_skinny_port_msg(port_mesg, pip, tc, link, direction);
- }
- break;
- case OPNRCVCH_ACK:
- {
- struct OpenReceiveChannelAck *opnrcvchn_ack;
-
- if (len < sizeof(struct OpenReceiveChannelAck)) {
+ port_mesg = (struct IpPortMessage *)&sd->msgId;
+ alias_skinny_port_msg(port_mesg, pip, tc, link, direction);
+ break;
+ }
+ case OPNRCVCH_ACK: {
+ struct OpenReceiveChannelAck *opnrcvchn_ack;
+
+ if (len < sizeof(struct OpenReceiveChannelAck)) {
#ifdef DEBUG
- fprintf(stderr,
- "PacketAlias/Skinny: Not a skinny packet, packet,OpnRcvChnAckMsg\n");
+ fprintf(stderr,
+ "PacketAlias/Skinny: Not a skinny packet, packet,OpnRcvChnAckMsg\n");
#endif
- return;
- }
+ return;
+ }
#ifdef DEBUG
- fprintf(stderr,
- "PacketAlias/Skinny: Received open rcv channel msg\n");
+ fprintf(stderr,
+ "PacketAlias/Skinny: Received open rcv channel msg\n");
#endif
- opnrcvchn_ack = (struct OpenReceiveChannelAck *) & sd->msgId;
- alias_skinny_opnrcvch_ack(la, opnrcvchn_ack, pip, tc, link, &lip, direction);
- }
- break;
- case START_MEDIATX:
- {
- struct StartMediaTransmission *startmedia_tx;
-
- if (len < sizeof(struct StartMediaTransmission)) {
+ opnrcvchn_ack = (struct OpenReceiveChannelAck *)&sd->msgId;
+ alias_skinny_opnrcvch_ack(la, opnrcvchn_ack, pip, tc, link, &lip, direction);
+ break;
+ }
+ case START_MEDIATX: {
+ struct StartMediaTransmission *startmedia_tx;
+
+ if (len < sizeof(struct StartMediaTransmission)) {
#ifdef DEBUG
- fprintf(stderr,
- "PacketAlias/Skinny: Not a skinny packet,StartMediaTx Message\n");
+ fprintf(stderr,
+ "PacketAlias/Skinny: Not a skinny packet,StartMediaTx Message\n");
#endif
- return;
- }
+ return;
+ }
#ifdef DEBUG
- fprintf(stderr,
- "PacketAlias/Skinny: Received start media trans msg\n");
+ fprintf(stderr,
+ "PacketAlias/Skinny: Received start media trans msg\n");
#endif
- startmedia_tx = (struct StartMediaTransmission *) & sd->msgId;
- alias_skinny_startmedia(startmedia_tx, pip, tc, link, lip, direction);
- }
- break;
- default:
- break;
- }
- /* Place the pointer at the next message in the packet. */
- dlen -= len + (skinny_hdr_len - sizeof(msgId));
- sd = (struct skinny_header *) (((char *)&sd->msgId) + len);
- }
+ startmedia_tx = (struct StartMediaTransmission *)&sd->msgId;
+ alias_skinny_startmedia(startmedia_tx, pip, tc, link, lip, direction);
+ break;
+ }
+ default:
+ break;
+ }
+ /* Place the pointer at the next message in the packet. */
+ dlen -= len + (skinny_hdr_len - sizeof(msgId));
+ sd = (struct skinny_header *)(((char *)&sd->msgId) + len);
+ }
}
OpenPOWER on IntegriCloud