mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-28 17:48:58 +00:00
270 lines
9.0 KiB
Diff
270 lines
9.0 KiB
Diff
--- a/pppd/plugins/rp-pppoe/common.c
|
|
+++ b/pppd/plugins/rp-pppoe/common.c
|
|
@@ -119,15 +119,11 @@ sendPADT(PPPoEConnection *conn, char con
|
|
conn->session = 0;
|
|
|
|
/* If we're using Host-Uniq, copy it over */
|
|
- if (conn->useHostUniq) {
|
|
- PPPoETag hostUniq;
|
|
- pid_t pid = getpid();
|
|
- hostUniq.type = htons(TAG_HOST_UNIQ);
|
|
- hostUniq.length = htons(sizeof(pid));
|
|
- memcpy(hostUniq.payload, &pid, sizeof(pid));
|
|
- memcpy(cursor, &hostUniq, sizeof(pid) + TAG_HDR_SIZE);
|
|
- cursor += sizeof(pid) + TAG_HDR_SIZE;
|
|
- plen += sizeof(pid) + TAG_HDR_SIZE;
|
|
+ if (conn->hostUniq.length) {
|
|
+ int len = ntohs(conn->hostUniq.length);
|
|
+ memcpy(cursor, &conn->hostUniq, len + TAG_HDR_SIZE);
|
|
+ cursor += len + TAG_HDR_SIZE;
|
|
+ plen += len + TAG_HDR_SIZE;
|
|
}
|
|
|
|
/* Copy error message */
|
|
--- a/pppd/plugins/rp-pppoe/discovery.c
|
|
+++ b/pppd/plugins/rp-pppoe/discovery.c
|
|
@@ -80,13 +80,10 @@ static void
|
|
parseForHostUniq(UINT16_t type, UINT16_t len, unsigned char *data,
|
|
void *extra)
|
|
{
|
|
- int *val = (int *) extra;
|
|
- if (type == TAG_HOST_UNIQ && len == sizeof(pid_t)) {
|
|
- pid_t tmp;
|
|
- memcpy(&tmp, data, len);
|
|
- if (tmp == getpid()) {
|
|
- *val = 1;
|
|
- }
|
|
+ PPPoETag *tag = extra;
|
|
+
|
|
+ if (type == TAG_HOST_UNIQ && len == ntohs(tag->length)) {
|
|
+ tag->length = memcmp(data, tag->payload, len);
|
|
}
|
|
}
|
|
|
|
@@ -104,16 +101,16 @@ parseForHostUniq(UINT16_t type, UINT16_t
|
|
static int
|
|
packetIsForMe(PPPoEConnection *conn, PPPoEPacket *packet)
|
|
{
|
|
- int forMe = 0;
|
|
+ PPPoETag hostUniq = conn->hostUniq;
|
|
|
|
/* If packet is not directed to our MAC address, forget it */
|
|
if (memcmp(packet->ethHdr.h_dest, conn->myEth, ETH_ALEN)) return 0;
|
|
|
|
/* If we're not using the Host-Unique tag, then accept the packet */
|
|
- if (!conn->useHostUniq) return 1;
|
|
+ if (!conn->hostUniq.length) return 1;
|
|
|
|
- parsePacket(packet, parseForHostUniq, &forMe);
|
|
- return forMe;
|
|
+ parsePacket(packet, parseForHostUniq, &hostUniq);
|
|
+ return (hostUniq.length == 0);
|
|
}
|
|
|
|
/**********************************************************************
|
|
@@ -301,16 +298,12 @@ sendPADI(PPPoEConnection *conn)
|
|
}
|
|
|
|
/* If we're using Host-Uniq, copy it over */
|
|
- if (conn->useHostUniq) {
|
|
- PPPoETag hostUniq;
|
|
- pid_t pid = getpid();
|
|
- hostUniq.type = htons(TAG_HOST_UNIQ);
|
|
- hostUniq.length = htons(sizeof(pid));
|
|
- memcpy(hostUniq.payload, &pid, sizeof(pid));
|
|
- CHECK_ROOM(cursor, packet.payload, sizeof(pid) + TAG_HDR_SIZE);
|
|
- memcpy(cursor, &hostUniq, sizeof(pid) + TAG_HDR_SIZE);
|
|
- cursor += sizeof(pid) + TAG_HDR_SIZE;
|
|
- plen += sizeof(pid) + TAG_HDR_SIZE;
|
|
+ if (conn->hostUniq.length) {
|
|
+ int len = ntohs(conn->hostUniq.length);
|
|
+ CHECK_ROOM(cursor, packet.payload, len + TAG_HDR_SIZE);
|
|
+ memcpy(cursor, &conn->hostUniq, len + TAG_HDR_SIZE);
|
|
+ cursor += len + TAG_HDR_SIZE;
|
|
+ plen += len + TAG_HDR_SIZE;
|
|
}
|
|
|
|
/* Add our maximum MTU/MRU */
|
|
@@ -478,16 +471,12 @@ sendPADR(PPPoEConnection *conn)
|
|
cursor += namelen + TAG_HDR_SIZE;
|
|
|
|
/* If we're using Host-Uniq, copy it over */
|
|
- if (conn->useHostUniq) {
|
|
- PPPoETag hostUniq;
|
|
- pid_t pid = getpid();
|
|
- hostUniq.type = htons(TAG_HOST_UNIQ);
|
|
- hostUniq.length = htons(sizeof(pid));
|
|
- memcpy(hostUniq.payload, &pid, sizeof(pid));
|
|
- CHECK_ROOM(cursor, packet.payload, sizeof(pid)+TAG_HDR_SIZE);
|
|
- memcpy(cursor, &hostUniq, sizeof(pid) + TAG_HDR_SIZE);
|
|
- cursor += sizeof(pid) + TAG_HDR_SIZE;
|
|
- plen += sizeof(pid) + TAG_HDR_SIZE;
|
|
+ if (conn->hostUniq.length) {
|
|
+ int len = ntohs(conn->hostUniq.length);
|
|
+ CHECK_ROOM(cursor, packet.payload, len+TAG_HDR_SIZE);
|
|
+ memcpy(cursor, &conn->hostUniq, len + TAG_HDR_SIZE);
|
|
+ cursor += len + TAG_HDR_SIZE;
|
|
+ plen += len + TAG_HDR_SIZE;
|
|
}
|
|
|
|
/* Add our maximum MTU/MRU */
|
|
--- a/pppd/plugins/rp-pppoe/plugin.c
|
|
+++ b/pppd/plugins/rp-pppoe/plugin.c
|
|
@@ -65,6 +65,7 @@ static char *existingSession = NULL;
|
|
static int printACNames = 0;
|
|
static char *pppoe_reqd_mac = NULL;
|
|
unsigned char pppoe_reqd_mac_addr[6];
|
|
+static char *host_uniq = NULL;
|
|
|
|
static int PPPoEDevnameHook(char *cmd, char **argv, int doit);
|
|
static option_t Options[] = {
|
|
@@ -82,6 +83,8 @@ static option_t Options[] = {
|
|
"Be verbose about discovered access concentrators"},
|
|
{ "pppoe-mac", o_string, &pppoe_reqd_mac,
|
|
"Only connect to specified MAC address" },
|
|
+ { "host-uniq", o_string, &host_uniq,
|
|
+ "Specify custom Host-Uniq" },
|
|
{ NULL }
|
|
};
|
|
int (*OldDevnameHook)(char *cmd, char **argv, int doit) = NULL;
|
|
@@ -107,7 +110,6 @@ PPPOEInitDevice(void)
|
|
conn->ifName = devnam;
|
|
conn->discoverySocket = -1;
|
|
conn->sessionSocket = -1;
|
|
- conn->useHostUniq = 1;
|
|
conn->printACNames = printACNames;
|
|
conn->discoveryTimeout = PADI_TIMEOUT;
|
|
return 1;
|
|
@@ -163,6 +165,9 @@ PPPOEConnectDevice(void)
|
|
if (lcp_wantoptions[0].mru > ifr.ifr_mtu - TOTAL_OVERHEAD)
|
|
lcp_wantoptions[0].mru = ifr.ifr_mtu - TOTAL_OVERHEAD;
|
|
|
|
+ if (host_uniq && !parseHostUniq(host_uniq, &conn->hostUniq))
|
|
+ fatal("Illegal value for host-uniq option");
|
|
+
|
|
conn->acName = acName;
|
|
conn->serviceName = pppd_pppoe_service;
|
|
strlcpy(ppp_devnam, devnam, sizeof(ppp_devnam));
|
|
--- a/pppd/plugins/rp-pppoe/pppoe-discovery.c
|
|
+++ b/pppd/plugins/rp-pppoe/pppoe-discovery.c
|
|
@@ -348,7 +348,7 @@ packetIsForMe(PPPoEConnection *conn, PPP
|
|
if (memcmp(packet->ethHdr.h_dest, conn->myEth, ETH_ALEN)) return 0;
|
|
|
|
/* If we're not using the Host-Unique tag, then accept the packet */
|
|
- if (!conn->useHostUniq) return 1;
|
|
+ if (!conn->hostUniq.length) return 1;
|
|
|
|
parsePacket(packet, parseForHostUniq, &forMe);
|
|
return forMe;
|
|
@@ -474,16 +474,12 @@ sendPADI(PPPoEConnection *conn)
|
|
cursor += namelen + TAG_HDR_SIZE;
|
|
|
|
/* If we're using Host-Uniq, copy it over */
|
|
- if (conn->useHostUniq) {
|
|
- PPPoETag hostUniq;
|
|
- pid_t pid = getpid();
|
|
- hostUniq.type = htons(TAG_HOST_UNIQ);
|
|
- hostUniq.length = htons(sizeof(pid));
|
|
- memcpy(hostUniq.payload, &pid, sizeof(pid));
|
|
- CHECK_ROOM(cursor, packet.payload, sizeof(pid) + TAG_HDR_SIZE);
|
|
- memcpy(cursor, &hostUniq, sizeof(pid) + TAG_HDR_SIZE);
|
|
- cursor += sizeof(pid) + TAG_HDR_SIZE;
|
|
- plen += sizeof(pid) + TAG_HDR_SIZE;
|
|
+ if (conn->hostUniq.length) {
|
|
+ int len = ntohs(conn->hostUniq.length);
|
|
+ CHECK_ROOM(cursor, packet.payload, len + TAG_HDR_SIZE);
|
|
+ memcpy(cursor, &conn->hostUniq, len + TAG_HDR_SIZE);
|
|
+ cursor += len + TAG_HDR_SIZE;
|
|
+ plen += len + TAG_HDR_SIZE;
|
|
}
|
|
|
|
packet.length = htons(plen);
|
|
@@ -645,7 +641,7 @@ int main(int argc, char *argv[])
|
|
|
|
memset(conn, 0, sizeof(PPPoEConnection));
|
|
|
|
- while ((opt = getopt(argc, argv, "I:D:VUAS:C:h")) > 0) {
|
|
+ while ((opt = getopt(argc, argv, "I:D:VUW:AS:C:h")) > 0) {
|
|
switch(opt) {
|
|
case 'S':
|
|
conn->serviceName = xstrdup(optarg);
|
|
@@ -654,7 +650,23 @@ int main(int argc, char *argv[])
|
|
conn->acName = xstrdup(optarg);
|
|
break;
|
|
case 'U':
|
|
- conn->useHostUniq = 1;
|
|
+ if(conn->hostUniq.length) {
|
|
+ fprintf(stderr, "-U and -W are mutually exclusive\n");
|
|
+ exit(EXIT_FAILURE);
|
|
+ }
|
|
+ char pidbuf[5];
|
|
+ snprintf(pidbuf, sizeof(pidbuf), "%04x", getpid());
|
|
+ parseHostUniq(pidbuf, &conn->hostUniq);
|
|
+ break;
|
|
+ case 'W':
|
|
+ if(conn->hostUniq.length) {
|
|
+ fprintf(stderr, "-U and -W are mutually exclusive\n");
|
|
+ exit(EXIT_FAILURE);
|
|
+ }
|
|
+ if (!parseHostUniq(optarg, &conn->hostUniq)) {
|
|
+ fprintf(stderr, "Invalid host-uniq argument: %s\n", optarg);
|
|
+ exit(EXIT_FAILURE);
|
|
+ }
|
|
break;
|
|
case 'D':
|
|
conn->debugFile = fopen(optarg, "w");
|
|
--- a/pppd/plugins/rp-pppoe/pppoe.h
|
|
+++ b/pppd/plugins/rp-pppoe/pppoe.h
|
|
@@ -21,6 +21,8 @@
|
|
|
|
#include <stdio.h> /* For FILE */
|
|
#include <sys/types.h> /* For pid_t */
|
|
+#include <ctype.h>
|
|
+#include <string.h>
|
|
|
|
/* How do we access raw Ethernet devices? */
|
|
#undef USE_LINUX_PACKET
|
|
@@ -217,7 +219,7 @@ typedef struct PPPoEConnectionStruct {
|
|
char *serviceName; /* Desired service name, if any */
|
|
char *acName; /* Desired AC name, if any */
|
|
int synchronous; /* Use synchronous PPP */
|
|
- int useHostUniq; /* Use Host-Uniq tag */
|
|
+ PPPoETag hostUniq; /* Use Host-Uniq tag */
|
|
int printACNames; /* Just print AC names */
|
|
FILE *debugFile; /* Debug file for dumping packets */
|
|
int numPADOs; /* Number of PADO packets received */
|
|
@@ -273,6 +275,33 @@ void pppoe_printpkt(PPPoEPacket *packet,
|
|
void (*printer)(void *, char *, ...), void *arg);
|
|
void pppoe_log_packet(const char *prefix, PPPoEPacket *packet);
|
|
|
|
+static inline int parseHostUniq(const char *uniq, PPPoETag *tag)
|
|
+{
|
|
+ int i, len = strlen(uniq);
|
|
+
|
|
+#define hex(x) \
|
|
+ (((x) <= '9') ? ((x) - '0') : \
|
|
+ (((x) <= 'F') ? ((x) - 'A' + 10) : \
|
|
+ ((x) - 'a' + 10)))
|
|
+
|
|
+ if (len % 2)
|
|
+ return 0;
|
|
+
|
|
+ for (i = 0; i < len; i += 2)
|
|
+ {
|
|
+ if (!isxdigit(uniq[i]) || !isxdigit(uniq[i+1]))
|
|
+ return 0;
|
|
+
|
|
+ tag->payload[i / 2] = (char)(16 * hex(uniq[i]) + hex(uniq[i+1]));
|
|
+ }
|
|
+
|
|
+#undef hex
|
|
+
|
|
+ tag->type = htons(TAG_HOST_UNIQ);
|
|
+ tag->length = htons(len / 2);
|
|
+ return 1;
|
|
+}
|
|
+
|
|
#define SET_STRING(var, val) do { if (var) free(var); var = strDup(val); } while(0);
|
|
|
|
#define CHECK_ROOM(cursor, start, len) \
|