X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=pppd%2Fplugins%2Fradius%2Fradius.c;h=254ed904184f150330a0696a532f83a23a8d8f08;hb=032020241d270c53dff479a7b0eb7fe487c56a78;hp=4bed565482222797eb72f30966387c9de643a044;hpb=da7530a7e013e1d08982168c897f1d0ea2b8829d;p=ppp.git diff --git a/pppd/plugins/radius/radius.c b/pppd/plugins/radius/radius.c index 4bed565..254ed90 100644 --- a/pppd/plugins/radius/radius.c +++ b/pppd/plugins/radius/radius.c @@ -24,13 +24,18 @@ * ***********************************************************************/ static char const RCSID[] = -"$Id: radius.c,v 1.22 2004/01/11 08:01:30 paulus Exp $"; +"$Id: radius.c,v 1.32 2008/05/26 09:18:08 paulus Exp $"; + +#ifdef HAVE_CONFIG_H +#include +#endif #include "pppd.h" #include "chap-new.h" #ifdef CHAPMS #include "chap_ms.h" #ifdef MPPE +#include "mppe.h" #include "md5.h" #endif #endif @@ -41,21 +46,30 @@ static char const RCSID[] = #include #include #include +#include +#include #define BUF_LEN 1024 #define MD5_HASH_SIZE 16 +#define MSDNS 1 + static char *config_file = NULL; static int add_avp(char **); static struct avpopt { char *vpstr; struct avpopt *next; } *avpopt = NULL; +static bool portnummap = 0; static option_t Options[] = { { "radius-config-file", o_string, &config_file }, { "avpair", o_special, add_avp }, + { "map-to-ttyname", o_bool, &portnummap, + "Set Radius NAS-Port attribute value via libradiusclient library", OPT_PRIO | 1 }, + { "map-to-ifname", o_bool, &portnummap, + "Set Radius NAS-Port attribute to number as in interface name (Default)", OPT_PRIOSUB | 0 }, { NULL } }; @@ -69,7 +83,7 @@ static int radius_chap_verify(char *user, char *ourname, int id, struct chap_digest_type *digest, unsigned char *challenge, unsigned char *response, - unsigned char *message, int message_space); + char *message, int message_space); static void radius_ip_up(void *opaque, int arg); static void radius_ip_down(void *opaque, int arg); @@ -98,7 +112,6 @@ static int radius_setmppekeys2(VALUE_PAIR *vp, REQUEST_INFO *req_info); #endif struct radius_state { - int accounting_started; int initialized; int client_port; int choose_ip; @@ -193,7 +206,7 @@ add_avp(char **argv) * 1 -- we are ALWAYS willing to supply a secret. :-) * %DESCRIPTION: * Tells pppd that we will try to authenticate the peer, and not to -* worry about looking in /etc/ppp/*-secrets +* worry about looking in *-secrets file(s) ***********************************************************************/ static int radius_secret_check(void) @@ -264,7 +277,7 @@ radius_pap_auth(char *user, /* Hack... the "port" is the ppp interface number. Should really be the tty */ - rstate.client_port = get_client_port(ifname); + rstate.client_port = get_client_port(portnummap ? devnam : ifname); av_type = PW_FRAMED; rc_avpair_add(&send, PW_SERVICE_TYPE, &av_type, 0, VENDOR_NONE); @@ -277,7 +290,8 @@ radius_pap_auth(char *user, if (*remote_number) { rc_avpair_add(&send, PW_CALLING_STATION_ID, remote_number, 0, VENDOR_NONE); - } + } else if (ipparam) + rc_avpair_add(&send, PW_CALLING_STATION_ID, ipparam, 0, VENDOR_NONE); /* Add user specified vp's */ if (rstate.avp) @@ -324,7 +338,7 @@ static int radius_chap_verify(char *user, char *ourname, int id, struct chap_digest_type *digest, unsigned char *challenge, unsigned char *response, - unsigned char *message, int message_space) + char *message, int message_space) { VALUE_PAIR *send, *received; UINT4 av_type; @@ -363,7 +377,7 @@ radius_chap_verify(char *user, char *ourname, int id, /* Put user with potentially realm added in rstate.user */ if (!rstate.done_chap_once) { make_username_realm(user); - rstate.client_port = get_client_port (ifname); + rstate.client_port = get_client_port (portnummap ? devnam : ifname); if (radius_pre_auth_hook) { radius_pre_auth_hook(rstate.user, &rstate.authserver, @@ -402,18 +416,14 @@ radius_chap_verify(char *user, char *ourname, int id, case CHAP_MICROSOFT: { /* MS-CHAP-Challenge and MS-CHAP-Response */ - MS_ChapResponse *rmd = (MS_ChapResponse *) response; u_char *p = cpassword; if (response_len != MS_CHAP_RESPONSE_LEN) return 0; *p++ = id; /* The idiots use a different field order in RADIUS than PPP */ - memcpy(p, rmd->UseNT, sizeof(rmd->UseNT)); - p += sizeof(rmd->UseNT); - memcpy(p, rmd->LANManResp, sizeof(rmd->LANManResp)); - p += sizeof(rmd->LANManResp); - memcpy(p, rmd->NTResp, sizeof(rmd->NTResp)); + *p++ = response[MS_CHAP_USENT]; + memcpy(p, response, MS_CHAP_LANMANRESP_LEN + MS_CHAP_NTRESP_LEN); rc_avpair_add(&send, PW_MS_CHAP_CHALLENGE, challenge, challenge_len, VENDOR_MICROSOFT); @@ -425,20 +435,15 @@ radius_chap_verify(char *user, char *ourname, int id, case CHAP_MICROSOFT_V2: { /* MS-CHAP-Challenge and MS-CHAP2-Response */ - MS_Chap2Response *rmd = (MS_Chap2Response *) response; u_char *p = cpassword; if (response_len != MS_CHAP2_RESPONSE_LEN) return 0; *p++ = id; /* The idiots use a different field order in RADIUS than PPP */ - memcpy(p, rmd->Flags, sizeof(rmd->Flags)); - p += sizeof(rmd->Flags); - memcpy(p, rmd->PeerChallenge, sizeof(rmd->PeerChallenge)); - p += sizeof(rmd->PeerChallenge); - memcpy(p, rmd->Reserved, sizeof(rmd->Reserved)); - p += sizeof(rmd->Reserved); - memcpy(p, rmd->NTResp, sizeof(rmd->NTResp)); + *p++ = response[MS_CHAP2_FLAGS]; + memcpy(p, response, (MS_CHAP2_PEER_CHAL_LEN + MS_CHAP2_RESERVED_LEN + + MS_CHAP2_NTRESP_LEN)); rc_avpair_add(&send, PW_MS_CHAP_CHALLENGE, challenge, challenge_len, VENDOR_MICROSOFT); @@ -452,7 +457,8 @@ radius_chap_verify(char *user, char *ourname, int id, if (*remote_number) { rc_avpair_add(&send, PW_CALLING_STATION_ID, remote_number, 0, VENDOR_NONE); - } + } else if (ipparam) + rc_avpair_add(&send, PW_CALLING_STATION_ID, ipparam, 0, VENDOR_NONE); /* Add user specified vp's */ if (rstate.avp) @@ -471,6 +477,8 @@ radius_chap_verify(char *user, char *ourname, int id, req_info); } + strlcpy(message, radius_msg, message_space); + if (result == OK_RC) { if (!rstate.done_chap_once) { if (radius_setparams(received, radius_msg, req_info, digest, @@ -541,6 +549,14 @@ radius_setparams(VALUE_PAIR *vp, char *msg, REQUEST_INFO *req_info, int mppe_enc_policy = 0; int mppe_enc_types = 0; #endif +#ifdef MSDNS + ipcp_options *wo = &ipcp_wantoptions[0]; + ipcp_options *ao = &ipcp_allowoptions[0]; + int got_msdns_1 = 0; + int got_msdns_2 = 0; + int got_wins_1 = 0; + int got_wins_2 = 0; +#endif /* Send RADIUS attributes to anyone else who might be interested */ if (radius_attributes_hook) { @@ -579,6 +595,18 @@ radius_setparams(VALUE_PAIR *vp, char *msg, REQUEST_INFO *req_info, /* Session timeout */ maxconnect = vp->lvalue; break; + case PW_FILTER_ID: + /* packet filter, will be handled via ip-(up|down) script */ + script_setenv("RADIUS_FILTER_ID", (char*) vp->strvalue, 1); + break; + case PW_FRAMED_ROUTE: + /* route, will be handled via ip-(up|down) script */ + script_setenv("RADIUS_FRAMED_ROUTE", (char*) vp->strvalue, 1); + break; + case PW_IDLE_TIMEOUT: + /* idle parameter */ + idle_time_limit = vp->lvalue; + break; #ifdef MAXOCTETS case PW_SESSION_OCTETS_LIMIT: /* Session traffic limit */ @@ -617,6 +645,9 @@ radius_setparams(VALUE_PAIR *vp, char *msg, REQUEST_INFO *req_info, rstate.ip_addr = remote; } break; + case PW_NAS_IP_ADDRESS: + wo->ouraddr = htonl(vp->lvalue); + break; case PW_CLASS: /* Save Class attribute to pass it in accounting request */ if (vp->lvalue <= MAXCLASSLEN) { @@ -624,19 +655,22 @@ radius_setparams(VALUE_PAIR *vp, char *msg, REQUEST_INFO *req_info, memcpy(rstate.class, vp->strvalue, rstate.class_len); } /* else too big for our buffer - ignore it */ break; + case PW_FRAMED_MTU: + netif_set_mtu(rstate.client_port,MIN(netif_get_mtu(rstate.client_port),vp->lvalue)); + break; } -#ifdef CHAPMS } else if (vp->vendorcode == VENDOR_MICROSOFT) { +#ifdef CHAPMS switch (vp->attribute) { case PW_MS_CHAP2_SUCCESS: - if ((vp->lvalue != 43) || strncmp(vp->strvalue + 1, "S=", 2)) { + if ((vp->lvalue != 43) || strncmp((char*) vp->strvalue + 1, "S=", 2)) { slprintf(msg,BUF_LEN,"RADIUS: bad MS-CHAP2-Success packet"); return -1; } if (message != NULL) - strlcpy(message, vp->strvalue + 1, message_space); + strlcpy(message, (char*) vp->strvalue + 1, message_space); ms_chap2_success = 1; break; @@ -671,13 +705,32 @@ radius_setparams(VALUE_PAIR *vp, char *msg, REQUEST_INFO *req_info, break; #endif /* MPPE */ -#if 0 +#ifdef MSDNS case PW_MS_PRIMARY_DNS_SERVER: + ao->dnsaddr[0] = htonl(vp->lvalue); + got_msdns_1 = 1; + if (!got_msdns_2) + ao->dnsaddr[1] = ao->dnsaddr[0]; + break; case PW_MS_SECONDARY_DNS_SERVER: + ao->dnsaddr[1] = htonl(vp->lvalue); + got_msdns_2 = 1; + if (!got_msdns_1) + ao->dnsaddr[0] = ao->dnsaddr[1]; + break; case PW_MS_PRIMARY_NBNS_SERVER: + ao->winsaddr[0] = htonl(vp->lvalue); + got_wins_1 = 1; + if (!got_wins_2) + ao->winsaddr[1] = ao->winsaddr[0]; + break; case PW_MS_SECONDARY_NBNS_SERVER: + ao->winsaddr[1] = htonl(vp->lvalue); + got_wins_2 = 1; + if (!got_wins_1) + ao->winsaddr[0] = ao->winsaddr[1]; break; -#endif +#endif /* MSDNS */ } #endif /* CHAPMS */ } @@ -694,11 +747,12 @@ radius_setparams(VALUE_PAIR *vp, char *msg, REQUEST_INFO *req_info, * Note that if the policy value was '0' we don't set the key! */ if (mppe_enc_policy && mppe_enc_keys) { - mppe_keys_set = 1; /* Set/modify allowed encryption types. */ if (mppe_enc_types) - set_mppe_enc_types(mppe_enc_policy, mppe_enc_types); + mppe_set_enc_types(mppe_enc_policy, mppe_enc_types); + return 0; } + mppe_clear_keys(); #endif return 0; @@ -733,18 +787,18 @@ radius_setmppekeys(VALUE_PAIR *vp, REQUEST_INFO *req_info, memcpy(plain, vp->strvalue, sizeof(plain)); - MD5Init(&Context); - MD5Update(&Context, req_info->secret, strlen(req_info->secret)); - MD5Update(&Context, req_info->request_vector, AUTH_VECTOR_LEN); - MD5Final(buf, &Context); + MD5_Init(&Context); + MD5_Update(&Context, req_info->secret, strlen(req_info->secret)); + MD5_Update(&Context, req_info->request_vector, AUTH_VECTOR_LEN); + MD5_Final(buf, &Context); for (i = 0; i < 16; i++) plain[i] ^= buf[i]; - MD5Init(&Context); - MD5Update(&Context, req_info->secret, strlen(req_info->secret)); - MD5Update(&Context, vp->strvalue, 16); - MD5Final(buf, &Context); + MD5_Init(&Context); + MD5_Update(&Context, req_info->secret, strlen(req_info->secret)); + MD5_Update(&Context, vp->strvalue, 16); + MD5_Final(buf, &Context); for(i = 0; i < 16; i++) plain[i + 16] ^= buf[i]; @@ -754,7 +808,7 @@ radius_setmppekeys(VALUE_PAIR *vp, REQUEST_INFO *req_info, * the NAS (us) doesn't need; we only need the start key. So we have * to generate the start key, sigh. NB: We do not support the LM-Key. */ - mppe_set_keys(challenge, &plain[8]); + mppe_set_chapv1(challenge, &plain[8]); return 0; } @@ -797,32 +851,32 @@ radius_setmppekeys2(VALUE_PAIR *vp, REQUEST_INFO *req_info) memcpy(plain, crypt, 32); - MD5Init(&Context); - MD5Update(&Context, req_info->secret, strlen(req_info->secret)); - MD5Update(&Context, req_info->request_vector, AUTH_VECTOR_LEN); - MD5Update(&Context, salt, 2); - MD5Final(buf, &Context); + MD5_Init(&Context); + MD5_Update(&Context, req_info->secret, strlen(req_info->secret)); + MD5_Update(&Context, req_info->request_vector, AUTH_VECTOR_LEN); + MD5_Update(&Context, salt, 2); + MD5_Final(buf, &Context); for (i = 0; i < 16; i++) plain[i] ^= buf[i]; - if (plain[0] != sizeof(mppe_send_key) /* 16 */) { + if (plain[0] != 16) { error("RADIUS: Incorrect key length (%d) for MS-MPPE-%s-Key attribute", (int) plain[0], type); return -1; } - MD5Init(&Context); - MD5Update(&Context, req_info->secret, strlen(req_info->secret)); - MD5Update(&Context, crypt, 16); - MD5Final(buf, &Context); + MD5_Init(&Context); + MD5_Update(&Context, req_info->secret, strlen(req_info->secret)); + MD5_Update(&Context, crypt, 16); + MD5_Final(buf, &Context); plain[16] ^= buf[0]; /* only need the first byte */ if (vp->attribute == PW_MS_MPPE_SEND_KEY) - memcpy(mppe_send_key, plain + 1, 16); + mppe_set_keys(plain + 1, NULL, 16); else - memcpy(mppe_recv_key, plain + 1, 16); + mppe_set_keys(NULL, plain + 1, 16); return 0; } @@ -852,7 +906,7 @@ radius_acct_start(void) rstate.start_time = time(NULL); - strncpy(rstate.session_id, rc_mksid(), sizeof(rstate.session_id)); + strlcpy(rstate.session_id, rc_mksid(), MAXSESSIONID); rc_avpair_add(&send, PW_ACCT_SESSION_ID, rstate.session_id, 0, VENDOR_NONE); @@ -875,13 +929,14 @@ radius_acct_start(void) if (*remote_number) { rc_avpair_add(&send, PW_CALLING_STATION_ID, remote_number, 0, VENDOR_NONE); - } + } else if (ipparam) + rc_avpair_add(&send, PW_CALLING_STATION_ID, ipparam, 0, VENDOR_NONE); av_type = PW_RADIUS; rc_avpair_add(&send, PW_ACCT_AUTHENTIC, &av_type, 0, VENDOR_NONE); - av_type = PW_ASYNC; + av_type = ( using_pty ? PW_VIRTUAL : ( sync_serial ? PW_SYNC : PW_ASYNC ) ); rc_avpair_add(&send, PW_NAS_PORT_TYPE, &av_type, 0, VENDOR_NONE); hisaddr = ho->hisaddr; @@ -905,12 +960,11 @@ radius_acct_start(void) /* RADIUS server could be down so make this a warning */ syslog(LOG_WARNING, "Accounting START failed for %s", rstate.user); - } else { - rstate.accounting_started = 1; - /* Kick off periodic accounting reports */ - if (rstate.acct_interim_interval) { - TIMEOUT(radius_acct_interim, NULL, rstate.acct_interim_interval); - } + } + + /* Kick off periodic accounting reports */ + if (rstate.acct_interim_interval) { + TIMEOUT(radius_acct_interim, NULL, rstate.acct_interim_interval); } } @@ -936,16 +990,18 @@ radius_acct_stop(void) return; } - if (!rstate.accounting_started) { - return; - } + if (rstate.acct_interim_interval) + UNTIMEOUT(radius_acct_interim, NULL); - rstate.accounting_started = 0; rc_avpair_add(&send, PW_ACCT_SESSION_ID, rstate.session_id, 0, VENDOR_NONE); rc_avpair_add(&send, PW_USER_NAME, rstate.user, 0, VENDOR_NONE); + if (rstate.class_len > 0) + rc_avpair_add(&send, PW_CLASS, + rstate.class, rstate.class_len, VENDOR_NONE); + av_type = PW_STATUS_STOP; rc_avpair_add(&send, PW_ACCT_STATUS_TYPE, &av_type, 0, VENDOR_NONE); @@ -979,11 +1035,63 @@ radius_acct_stop(void) if (*remote_number) { rc_avpair_add(&send, PW_CALLING_STATION_ID, remote_number, 0, VENDOR_NONE); - } + } else if (ipparam) + rc_avpair_add(&send, PW_CALLING_STATION_ID, ipparam, 0, VENDOR_NONE); - av_type = PW_ASYNC; + av_type = ( using_pty ? PW_VIRTUAL : ( sync_serial ? PW_SYNC : PW_ASYNC ) ); rc_avpair_add(&send, PW_NAS_PORT_TYPE, &av_type, 0, VENDOR_NONE); + av_type = PW_NAS_ERROR; + switch( status ) { + case EXIT_OK: + case EXIT_USER_REQUEST: + av_type = PW_USER_REQUEST; + break; + + case EXIT_HANGUP: + case EXIT_PEER_DEAD: + case EXIT_CONNECT_FAILED: + av_type = PW_LOST_CARRIER; + break; + + case EXIT_INIT_FAILED: + case EXIT_OPEN_FAILED: + case EXIT_LOCK_FAILED: + case EXIT_PTYCMD_FAILED: + av_type = PW_PORT_ERROR; + break; + + case EXIT_PEER_AUTH_FAILED: + case EXIT_AUTH_TOPEER_FAILED: + case EXIT_NEGOTIATION_FAILED: + case EXIT_CNID_AUTH_FAILED: + av_type = PW_SERVICE_UNAVAILABLE; + break; + + case EXIT_IDLE_TIMEOUT: + av_type = PW_ACCT_IDLE_TIMEOUT; + break; + + case EXIT_CALLBACK: + av_type = PW_CALLBACK; + break; + + case EXIT_CONNECT_TIME: + av_type = PW_ACCT_SESSION_TIMEOUT; + break; + +#ifdef MAXOCTETS + case EXIT_TRAFFIC_LIMIT: + av_type = PW_NAS_REQUEST; + break; +#endif + + default: + av_type = PW_NAS_ERROR; + break; + } + rc_avpair_add(&send, PW_ACCT_TERMINATE_CAUSE, &av_type, 0, VENDOR_NONE); + hisaddr = ho->hisaddr; av_type = htonl(hisaddr); rc_avpair_add(&send, PW_FRAMED_IP_ADDRESS , &av_type , 0, VENDOR_NONE); @@ -1029,15 +1137,15 @@ radius_acct_interim(void *ignored) return; } - if (!rstate.accounting_started) { - return; - } - rc_avpair_add(&send, PW_ACCT_SESSION_ID, rstate.session_id, 0, VENDOR_NONE); rc_avpair_add(&send, PW_USER_NAME, rstate.user, 0, VENDOR_NONE); + if (rstate.class_len > 0) + rc_avpair_add(&send, PW_CLASS, + rstate.class, rstate.class_len, VENDOR_NONE); + av_type = PW_STATUS_ALIVE; rc_avpair_add(&send, PW_ACCT_STATUS_TYPE, &av_type, 0, VENDOR_NONE); @@ -1075,9 +1183,10 @@ radius_acct_interim(void *ignored) if (*remote_number) { rc_avpair_add(&send, PW_CALLING_STATION_ID, remote_number, 0, VENDOR_NONE); - } + } else if (ipparam) + rc_avpair_add(&send, PW_CALLING_STATION_ID, ipparam, 0, VENDOR_NONE); - av_type = PW_ASYNC; + av_type = ( using_pty ? PW_VIRTUAL : ( sync_serial ? PW_SYNC : PW_ASYNC ) ); rc_avpair_add(&send, PW_NAS_PORT_TYPE, &av_type, 0, VENDOR_NONE); hisaddr = ho->hisaddr;