X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/5e631c6978946b8333bcd49b79ae5d009ba93413..cb031e775d57da45299c8dfdfabe7240705338e7:/radius.c?ds=sidebyside diff --git a/radius.c b/radius.c index dd8a3e6..3dabc34 100644 --- a/radius.c +++ b/radius.c @@ -1,6 +1,6 @@ // L2TPNS Radius Stuff -char const *cvs_id_radius = "$Id: radius.c,v 1.50 2006/04/27 09:53:50 bodea Exp $"; +char const *cvs_id_radius = "$Id: radius.c,v 1.54 2006/08/02 13:35:39 bodea Exp $"; #include #include @@ -45,6 +45,25 @@ static void calc_auth(const void *buf, size_t len, const uint8_t *in, uint8_t *o void initrad(void) { int i; + uint16_t port = 0; + uint16_t min = config->radius_bind_min; + uint16_t max = config->radius_bind_max; + int inc = 1; + struct sockaddr_in addr; + + if (min) + { + port = min; + if (!max) + max = ~0 - 1; + } + else if (max) /* no minimum specified, bind from max down */ + { + port = max; + min = 1; + inc = -1; + } + LOG(3, 0, 0, "Creating %d sockets for RADIUS queries\n", RADIUS_FDS); radfds = calloc(sizeof(int), RADIUS_FDS); for (i = 0; i < RADIUS_FDS; i++) @@ -53,6 +72,27 @@ void initrad(void) radfds[i] = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); flags = fcntl(radfds[i], F_GETFL, 0); fcntl(radfds[i], F_SETFL, flags | O_NONBLOCK); + + if (port) + { + int b; + + memset(&addr, 0, sizeof(addr)); + addr.sin_family = AF_INET; + addr.sin_addr.s_addr = INADDR_ANY; + + do { + addr.sin_port = htons(port); + if ((b = bind(radfds[i], (struct sockaddr *) &addr, sizeof(addr))) < 0) + { + if ((port += inc) < min || port > max) + { + LOG(0, 0, 0, "Can't bind RADIUS socket in range %u-%u\n", min, max); + exit(1); + } + } + } while (b < 0); + } } } @@ -330,6 +370,7 @@ void radiussend(uint16_t r, uint8_t state) } } } + if (s) { *p = 5; // NAS-Port @@ -346,52 +387,73 @@ void radiussend(uint16_t r, uint8_t state) p[1] = 6; *(uint32_t *) (p + 2) = htonl(1); // PPP p += p[1]; - } - if (s && session[s].ip) - { - *p = 8; // Framed-IP-Address - p[1] = 6; - *(uint32_t *) (p + 2) = htonl(session[s].ip); - p += p[1]; - } - if (s && session[s].route[0].ip) - { - int r; - for (r = 0; s && r < MAXROUTE && session[s].route[r].ip; r++) + + if (session[s].ip) + { + *p = 8; // Framed-IP-Address + p[1] = 6; + *(uint32_t *) (p + 2) = htonl(session[s].ip); + p += p[1]; + } + + if (session[s].route[0].ip) { - int width = 32; - if (session[s].route[r].mask) + int r; + for (r = 0; s && r < MAXROUTE && session[s].route[r].ip; r++) { - int mask = session[s].route[r].mask; - while (!(mask & 1)) - { - width--; - mask >>= 1; - } + int width = 32; + if (session[s].route[r].mask) + { + int mask = session[s].route[r].mask; + while (!(mask & 1)) + { + width--; + mask >>= 1; + } + } + + *p = 22; // Framed-Route + p[1] = sprintf((char *) p + 2, "%s/%d %s 1", + fmtaddr(htonl(session[s].route[r].ip), 0), + width, fmtaddr(htonl(session[s].ip), 1)) + 2; + + p += p[1]; } + } - *p = 22; // Framed-Route - p[1] = sprintf((char *) p + 2, "%s/%d %s 1", - fmtaddr(htonl(session[s].route[r].ip), 0), - width, fmtaddr(htonl(session[s].ip), 1)) + 2; + if (session[s].session_timeout) + { + *p = 27; // Session-Timeout + p[1] = 6; + *(uint32_t *) (p + 2) = htonl(session[s].session_timeout); + p += p[1]; + } + if (session[s].idle_timeout) + { + *p = 28; // Idle-Timeout + p[1] = 6; + *(uint32_t *) (p + 2) = htonl(session[s].idle_timeout); + p += p[1]; + } + + if (*session[s].called) + { + *p = 30; // called + p[1] = strlen(session[s].called) + 2; + strcpy((char *) p + 2, session[s].called); + p += p[1]; + } + + if (*session[s].calling) + { + *p = 31; // calling + p[1] = strlen(session[s].calling) + 2; + strcpy((char *) p + 2, session[s].calling); p += p[1]; } } - if (*session[s].called) - { - *p = 30; // called - p[1] = strlen(session[s].called) + 2; - strcpy((char *) p + 2, session[s].called); - p += p[1]; - } - if (*session[s].calling) - { - *p = 31; // calling - p[1] = strlen(session[s].calling) + 2; - strcpy((char *) p + 2, session[s].calling); - p += p[1]; - } + // NAS-IP-Address *p = 4; p[1] = 6; @@ -593,19 +655,6 @@ void processrad(uint8_t *buf, int len, char socket_index) LOG(3, s, session[s].tunnel, " Radius reply contains primary DNS address %s\n", fmtaddr(htonl(session[s].dns1), 0)); } - else if (*p == 27) - { - // Session timeout - if (p[1] < 6) { - LOG(2, s, session[s].tunnel, "Error: Received Session timeout with length %d < 6\n", p[1]); - continue; - } - - session[s].timeout = ntohl(*(uint32_t *) (p + 2)); - LOG(3, s, session[s].tunnel, " Radius reply contains Session timeout %d\n", session[s].timeout); - if (!session[s].timeout) - sessionshutdown(s, "Session timeout is zero", CDN_ADMIN_DISC, TERM_SESSION_TIMEOUT); - } else if (*p == 136) { // DNS address @@ -699,14 +748,28 @@ void processrad(uint8_t *buf, int len, char socket_index) ip_filters[f].used++; } } + else if (*p == 27) + { + // Session-Timeout + if (p[1] < 6) continue; + session[s].session_timeout = ntohl(*(uint32_t *)(p + 2)); + LOG(3, s, session[s].tunnel, " Radius reply contains Session-Timeout = %u\n", session[s].session_timeout); + } + else if (*p == 28) + { + // Idle-Timeout + if (p[1] < 6) continue; + session[s].idle_timeout = ntohl(*(uint32_t *)(p + 2)); + LOG(3, s, session[s].tunnel, " Radius reply contains Idle-Timeout = %u\n", session[s].idle_timeout); + } else if (*p == 26 && p[1] >= 7) { // Vendor-Specific Attribute - int vendor = ntohl(*(int *)(p + 2)); - char attrib = *(p + 6); + uint32_t vendor = ntohl(*(int *)(p + 2)); + uint8_t attrib = *(p + 6); int attrib_length = *(p + 7) - 2; - LOG(3, s, session[s].tunnel, " Radius reply contains Vendor-Specific. Vendor=%d Attrib=%d Length=%d\n", vendor, attrib, attrib_length); + LOG(3, s, session[s].tunnel, " Radius reply contains Vendor-Specific. Vendor=%u Attrib=%u Length=%d\n", vendor, attrib, attrib_length); if (vendor != 9 || attrib != 1) { LOG(3, s, session[s].tunnel, " Unknown vendor-specific\n");