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@@ -1,269 +0,0 @@
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---- a/pppd/plugins/rp-pppoe/common.c
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-+++ b/pppd/plugins/rp-pppoe/common.c
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-@@ -119,15 +119,11 @@ sendPADT(PPPoEConnection *conn, char con
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- conn->session = 0;
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-
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- /* If we're using Host-Uniq, copy it over */
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-- if (conn->useHostUniq) {
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-- PPPoETag hostUniq;
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-- pid_t pid = getpid();
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-- hostUniq.type = htons(TAG_HOST_UNIQ);
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-- hostUniq.length = htons(sizeof(pid));
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-- memcpy(hostUniq.payload, &pid, sizeof(pid));
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-- memcpy(cursor, &hostUniq, sizeof(pid) + TAG_HDR_SIZE);
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-- cursor += sizeof(pid) + TAG_HDR_SIZE;
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-- plen += sizeof(pid) + TAG_HDR_SIZE;
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-+ if (conn->hostUniq.length) {
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-+ int len = ntohs(conn->hostUniq.length);
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-+ memcpy(cursor, &conn->hostUniq, len + TAG_HDR_SIZE);
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-+ cursor += len + TAG_HDR_SIZE;
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-+ plen += len + TAG_HDR_SIZE;
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- }
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-
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- /* Copy error message */
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---- a/pppd/plugins/rp-pppoe/discovery.c
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-+++ b/pppd/plugins/rp-pppoe/discovery.c
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-@@ -80,13 +80,10 @@ static void
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- parseForHostUniq(UINT16_t type, UINT16_t len, unsigned char *data,
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- void *extra)
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- {
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-- int *val = (int *) extra;
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-- if (type == TAG_HOST_UNIQ && len == sizeof(pid_t)) {
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-- pid_t tmp;
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-- memcpy(&tmp, data, len);
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-- if (tmp == getpid()) {
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-- *val = 1;
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-- }
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-+ PPPoETag *tag = extra;
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-+
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-+ if (type == TAG_HOST_UNIQ && len == ntohs(tag->length)) {
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-+ tag->length = memcmp(data, tag->payload, len);
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- }
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- }
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-
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-@@ -104,16 +101,16 @@ parseForHostUniq(UINT16_t type, UINT16_t
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- static int
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- packetIsForMe(PPPoEConnection *conn, PPPoEPacket *packet)
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- {
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-- int forMe = 0;
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-+ PPPoETag hostUniq = conn->hostUniq;
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-
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- /* If packet is not directed to our MAC address, forget it */
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- if (memcmp(packet->ethHdr.h_dest, conn->myEth, ETH_ALEN)) return 0;
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-
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- /* If we're not using the Host-Unique tag, then accept the packet */
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-- if (!conn->useHostUniq) return 1;
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-+ if (!conn->hostUniq.length) return 1;
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-
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-- parsePacket(packet, parseForHostUniq, &forMe);
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-- return forMe;
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-+ parsePacket(packet, parseForHostUniq, &hostUniq);
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-+ return (hostUniq.length == 0);
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- }
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-
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- /**********************************************************************
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-@@ -301,16 +298,12 @@ sendPADI(PPPoEConnection *conn)
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- }
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-
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- /* If we're using Host-Uniq, copy it over */
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-- if (conn->useHostUniq) {
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-- PPPoETag hostUniq;
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-- pid_t pid = getpid();
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-- hostUniq.type = htons(TAG_HOST_UNIQ);
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-- hostUniq.length = htons(sizeof(pid));
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-- memcpy(hostUniq.payload, &pid, sizeof(pid));
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-- CHECK_ROOM(cursor, packet.payload, sizeof(pid) + TAG_HDR_SIZE);
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-- memcpy(cursor, &hostUniq, sizeof(pid) + TAG_HDR_SIZE);
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-- cursor += sizeof(pid) + TAG_HDR_SIZE;
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-- plen += sizeof(pid) + TAG_HDR_SIZE;
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-+ if (conn->hostUniq.length) {
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-+ int len = ntohs(conn->hostUniq.length);
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-+ CHECK_ROOM(cursor, packet.payload, len + TAG_HDR_SIZE);
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-+ memcpy(cursor, &conn->hostUniq, len + TAG_HDR_SIZE);
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-+ cursor += len + TAG_HDR_SIZE;
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-+ plen += len + TAG_HDR_SIZE;
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- }
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-
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- /* Add our maximum MTU/MRU */
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-@@ -478,16 +471,12 @@ sendPADR(PPPoEConnection *conn)
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- cursor += namelen + TAG_HDR_SIZE;
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-
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- /* If we're using Host-Uniq, copy it over */
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-- if (conn->useHostUniq) {
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-- PPPoETag hostUniq;
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-- pid_t pid = getpid();
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-- hostUniq.type = htons(TAG_HOST_UNIQ);
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-- hostUniq.length = htons(sizeof(pid));
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-- memcpy(hostUniq.payload, &pid, sizeof(pid));
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-- CHECK_ROOM(cursor, packet.payload, sizeof(pid)+TAG_HDR_SIZE);
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-- memcpy(cursor, &hostUniq, sizeof(pid) + TAG_HDR_SIZE);
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-- cursor += sizeof(pid) + TAG_HDR_SIZE;
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-- plen += sizeof(pid) + TAG_HDR_SIZE;
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-+ if (conn->hostUniq.length) {
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-+ int len = ntohs(conn->hostUniq.length);
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-+ CHECK_ROOM(cursor, packet.payload, len+TAG_HDR_SIZE);
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-+ memcpy(cursor, &conn->hostUniq, len + TAG_HDR_SIZE);
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-+ cursor += len + TAG_HDR_SIZE;
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-+ plen += len + TAG_HDR_SIZE;
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- }
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-
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- /* Add our maximum MTU/MRU */
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---- a/pppd/plugins/rp-pppoe/plugin.c
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-+++ b/pppd/plugins/rp-pppoe/plugin.c
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-@@ -65,6 +65,7 @@ static char *existingSession = NULL;
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- static int printACNames = 0;
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- static char *pppoe_reqd_mac = NULL;
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- unsigned char pppoe_reqd_mac_addr[6];
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-+static char *host_uniq = NULL;
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-
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- static int PPPoEDevnameHook(char *cmd, char **argv, int doit);
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- static option_t Options[] = {
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-@@ -82,6 +83,8 @@ static option_t Options[] = {
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- "Be verbose about discovered access concentrators"},
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- { "pppoe-mac", o_string, &pppoe_reqd_mac,
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- "Only connect to specified MAC address" },
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-+ { "host-uniq", o_string, &host_uniq,
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-+ "Specify custom Host-Uniq" },
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- { NULL }
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- };
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- int (*OldDevnameHook)(char *cmd, char **argv, int doit) = NULL;
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-@@ -107,7 +110,6 @@ PPPOEInitDevice(void)
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- conn->ifName = devnam;
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- conn->discoverySocket = -1;
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- conn->sessionSocket = -1;
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-- conn->useHostUniq = 1;
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- conn->printACNames = printACNames;
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- conn->discoveryTimeout = PADI_TIMEOUT;
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- return 1;
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-@@ -163,6 +165,9 @@ PPPOEConnectDevice(void)
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- if (lcp_wantoptions[0].mru > ifr.ifr_mtu - TOTAL_OVERHEAD)
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- lcp_wantoptions[0].mru = ifr.ifr_mtu - TOTAL_OVERHEAD;
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-
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-+ if (host_uniq && !parseHostUniq(host_uniq, &conn->hostUniq))
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-+ fatal("Illegal value for host-uniq option");
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-+
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- conn->acName = acName;
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- conn->serviceName = pppd_pppoe_service;
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- strlcpy(ppp_devnam, devnam, sizeof(ppp_devnam));
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---- a/pppd/plugins/rp-pppoe/pppoe-discovery.c
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-+++ b/pppd/plugins/rp-pppoe/pppoe-discovery.c
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-@@ -357,7 +357,7 @@ packetIsForMe(PPPoEConnection *conn, PPP
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- if (memcmp(packet->ethHdr.h_dest, conn->myEth, ETH_ALEN)) return 0;
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-
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- /* If we're not using the Host-Unique tag, then accept the packet */
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-- if (!conn->useHostUniq) return 1;
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-+ if (!conn->hostUniq.length) return 1;
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-
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- parsePacket(packet, parseForHostUniq, &forMe);
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- return forMe;
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-@@ -495,16 +495,12 @@ sendPADI(PPPoEConnection *conn)
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- cursor += namelen + TAG_HDR_SIZE;
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-
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- /* If we're using Host-Uniq, copy it over */
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-- if (conn->useHostUniq) {
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-- PPPoETag hostUniq;
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-- pid_t pid = getpid();
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-- hostUniq.type = htons(TAG_HOST_UNIQ);
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-- hostUniq.length = htons(sizeof(pid));
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-- memcpy(hostUniq.payload, &pid, sizeof(pid));
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-- CHECK_ROOM(cursor, packet.payload, sizeof(pid) + TAG_HDR_SIZE);
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-- memcpy(cursor, &hostUniq, sizeof(pid) + TAG_HDR_SIZE);
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-- cursor += sizeof(pid) + TAG_HDR_SIZE;
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-- plen += sizeof(pid) + TAG_HDR_SIZE;
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-+ if (conn->hostUniq.length) {
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-+ int len = ntohs(conn->hostUniq.length);
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-+ CHECK_ROOM(cursor, packet.payload, len + TAG_HDR_SIZE);
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-+ memcpy(cursor, &conn->hostUniq, len + TAG_HDR_SIZE);
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-+ cursor += len + TAG_HDR_SIZE;
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-+ plen += len + TAG_HDR_SIZE;
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- }
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-
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- packet.length = htons(plen);
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-@@ -670,7 +666,7 @@ int main(int argc, char *argv[])
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- conn->discoveryTimeout = PADI_TIMEOUT;
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- conn->discoveryAttempts = MAX_PADI_ATTEMPTS;
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-
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-- while ((opt = getopt(argc, argv, "I:D:VUQS:C:t:a:h")) > 0) {
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-+ while ((opt = getopt(argc, argv, "I:D:VUW:QS:C:t:a:h")) > 0) {
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- switch(opt) {
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- case 'S':
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- conn->serviceName = xstrdup(optarg);
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-@@ -697,7 +693,23 @@ int main(int argc, char *argv[])
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- }
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- break;
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- case 'U':
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-- conn->useHostUniq = 1;
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-+ if(conn->hostUniq.length) {
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-+ fprintf(stderr, "-U and -W are mutually exclusive\n");
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-+ exit(EXIT_FAILURE);
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-+ }
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-+ char pidbuf[5];
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-+ snprintf(pidbuf, sizeof(pidbuf), "%04x", getpid());
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-+ parseHostUniq(pidbuf, &conn->hostUniq);
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-+ break;
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-+ case 'W':
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-+ if(conn->hostUniq.length) {
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-+ fprintf(stderr, "-U and -W are mutually exclusive\n");
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-+ exit(EXIT_FAILURE);
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-+ }
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-+ if (!parseHostUniq(optarg, &conn->hostUniq)) {
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-+ fprintf(stderr, "Invalid host-uniq argument: %s\n", optarg);
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-+ exit(EXIT_FAILURE);
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-+ }
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- break;
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- case 'D':
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- conn->debugFile = fopen(optarg, "w");
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---- a/pppd/plugins/rp-pppoe/pppoe.h
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-+++ b/pppd/plugins/rp-pppoe/pppoe.h
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-@@ -21,6 +21,8 @@
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-
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- #include <stdio.h> /* For FILE */
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- #include <sys/types.h> /* For pid_t */
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-+#include <ctype.h>
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-+#include <string.h>
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-
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- #include "pppd/pppd.h" /* For error */
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-
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-@@ -221,7 +223,7 @@ typedef struct PPPoEConnectionStruct {
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- char *serviceName; /* Desired service name, if any */
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- char *acName; /* Desired AC name, if any */
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- int synchronous; /* Use synchronous PPP */
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-- int useHostUniq; /* Use Host-Uniq tag */
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-+ PPPoETag hostUniq; /* Use Host-Uniq tag */
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- int printACNames; /* Just print AC names */
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- FILE *debugFile; /* Debug file for dumping packets */
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- int numPADOs; /* Number of PADO packets received */
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-@@ -278,6 +280,33 @@ void pppoe_printpkt(PPPoEPacket *packet,
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- void (*printer)(void *, char *, ...), void *arg);
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- void pppoe_log_packet(const char *prefix, PPPoEPacket *packet);
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-
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-+static inline int parseHostUniq(const char *uniq, PPPoETag *tag)
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-+{
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-+ int i, len = strlen(uniq);
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-+
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-+#define hex(x) \
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-+ (((x) <= '9') ? ((x) - '0') : \
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-+ (((x) <= 'F') ? ((x) - 'A' + 10) : \
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-+ ((x) - 'a' + 10)))
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-+
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-+ if (len % 2)
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-+ return 0;
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-+
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-+ for (i = 0; i < len; i += 2)
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-+ {
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-+ if (!isxdigit(uniq[i]) || !isxdigit(uniq[i+1]))
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-+ return 0;
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-+
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-+ tag->payload[i / 2] = (char)(16 * hex(uniq[i]) + hex(uniq[i+1]));
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-+ }
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-+
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-+#undef hex
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-+
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-+ tag->type = htons(TAG_HOST_UNIQ);
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-+ tag->length = htons(len / 2);
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-+ return 1;
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-+}
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-+
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- #define SET_STRING(var, val) do { if (var) free(var); var = strDup(val); } while(0);
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-
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- #define CHECK_ROOM(cursor, start, len) \
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