X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;f=pppd%2Fplugins%2Fradius%2Fradius.c;h=999a30657eb343a21cbe53853ab98b54c6b7fd6d;hb=4cb90c1fb141ae3cca08c2ac9c663c14a4d2473e;hp=01ea312ee1ccf91c5afb83fde2fa8de583f72e4b;hpb=e8676075aea6d278f435d5ce83d9b6aa216a1ecb;p=ppp.git diff --git a/pppd/plugins/radius/radius.c b/pppd/plugins/radius/radius.c index 01ea312..999a306 100644 --- a/pppd/plugins/radius/radius.c +++ b/pppd/plugins/radius/radius.c @@ -26,32 +26,29 @@ static char const RCSID[] = "$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 PPP_WITH_CHAPMS -#include "chap_ms.h" -#ifdef PPP_WITH_MPPE -#include "mppe.h" -#include "md5.h" -#endif -#endif -#include "radiusclient.h" -#include "fsm.h" -#include "ipcp.h" #include #include #include +#include #include #include #include -#define BUF_LEN 1024 +#include +#include +#ifdef PPP_WITH_CHAPMS +#include +#ifdef PPP_WITH_MPPE +#include +#include +#endif +#endif +#include +#include -#define MD5_HASH_SIZE 16 +#include "radiusclient.h" + +#define BUF_LEN 1024 #define MSDNS 1 @@ -140,7 +137,7 @@ void (*radius_pre_auth_hook)(char const *user, static struct radius_state rstate; -char pppd_version[] = VERSION; +char pppd_version[] = PPPD_VERSION; /********************************************************************** * %FUNCTION: plugin_init @@ -401,15 +398,15 @@ radius_chap_verify(char *user, char *ourname, int id, switch (digest->code) { case CHAP_MD5: /* CHAP-Challenge and CHAP-Password */ - if (response_len != MD5_HASH_SIZE) + if (response_len != MD5_DIGEST_LENGTH) return 0; cpassword[0] = id; - memcpy(&cpassword[1], response, MD5_HASH_SIZE); + memcpy(&cpassword[1], response, MD5_DIGEST_LENGTH); rc_avpair_add(&send, PW_CHAP_CHALLENGE, challenge, challenge_len, VENDOR_NONE); rc_avpair_add(&send, PW_CHAP_PASSWORD, - cpassword, MD5_HASH_SIZE + 1, VENDOR_NONE); + cpassword, MD5_DIGEST_LENGTH + 1, VENDOR_NONE); break; #ifdef PPP_WITH_CHAPMS @@ -607,7 +604,6 @@ radius_setparams(VALUE_PAIR *vp, char *msg, REQUEST_INFO *req_info, /* idle parameter */ idle_time_limit = vp->lvalue; break; -#ifdef MAXOCTETS case PW_SESSION_OCTETS_LIMIT: /* Session traffic limit */ maxoctets = vp->lvalue; @@ -616,7 +612,6 @@ radius_setparams(VALUE_PAIR *vp, char *msg, REQUEST_INFO *req_info, /* Session traffic limit direction check */ maxoctets_dir = ( vp->lvalue > 4 ) ? 0 : vp->lvalue ; break; -#endif case PW_ACCT_INTERIM_INTERVAL: /* Send accounting updates every few seconds */ rstate.acct_interim_interval = vp->lvalue; @@ -775,9 +770,12 @@ radius_setmppekeys(VALUE_PAIR *vp, REQUEST_INFO *req_info, unsigned char *challenge) { int i; - MD5_CTX Context; - u_char plain[32]; - u_char buf[16]; + int status = 0; + PPP_MD_CTX *ctx; + unsigned char plain[32]; + unsigned char buf[MD5_DIGEST_LENGTH]; + unsigned int buflen; + if (vp->lvalue != 32) { error("RADIUS: Incorrect attribute length (%d) for MS-CHAP-MPPE-Keys", @@ -787,30 +785,70 @@ radius_setmppekeys(VALUE_PAIR *vp, REQUEST_INFO *req_info, memcpy(plain, vp->strvalue, sizeof(plain)); - 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); + ctx = PPP_MD_CTX_new(); + if (ctx) { - for (i = 0; i < 16; i++) - plain[i] ^= buf[i]; + if (PPP_DigestInit(ctx, PPP_md5())) { - MD5_Init(&Context); - MD5_Update(&Context, req_info->secret, strlen(req_info->secret)); - MD5_Update(&Context, vp->strvalue, 16); - MD5_Final(buf, &Context); + if (PPP_DigestUpdate(ctx, req_info->secret, strlen(req_info->secret))) { - for(i = 0; i < 16; i++) - plain[i + 16] ^= buf[i]; + if (PPP_DigestUpdate(ctx, req_info->request_vector, AUTH_VECTOR_LEN)) { - /* - * Annoying. The "key" returned is just the NTPasswordHashHash, which - * 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_chapv1(challenge, &plain[8]); + buflen = sizeof(buf); + if (PPP_DigestFinal(ctx, buf, &buflen)) { + + status = 1; + } + } + } + } + PPP_MD_CTX_free(ctx); + } + + if (status) { + + for (i = 0; i < MD5_DIGEST_LENGTH; i++) { + plain[i] ^= buf[i]; + } + + status = 0; + ctx = PPP_MD_CTX_new(); + if (ctx) { + + if (PPP_DigestInit(ctx, PPP_md5())) { + + if (PPP_DigestUpdate(ctx, req_info->secret, strlen(req_info->secret))) { + + if (PPP_DigestUpdate(ctx, vp->strvalue, 16)) { - return 0; + buflen = MD5_DIGEST_LENGTH; + if (PPP_DigestFinal(ctx, buf, &buflen)) { + + status = 1; + } + } + } + } + PPP_MD_CTX_free(ctx); + } + + if (status) { + + for(i = 0; i < MD5_DIGEST_LENGTH; i++) { + plain[i + 16] ^= buf[i]; + } + + /* + * Annoying. The "key" returned is just the NTPasswordHashHash, which + * 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_chapv1(challenge, &plain[8]); + return 0; + } + } + + return -1; } /********************************************************************** @@ -828,11 +866,13 @@ static int radius_setmppekeys2(VALUE_PAIR *vp, REQUEST_INFO *req_info) { int i; - MD5_CTX Context; - u_char *salt = vp->strvalue; - u_char *crypt = vp->strvalue + 2; - u_char plain[32]; - u_char buf[MD5_HASH_SIZE]; + int status = 0; + PPP_MD_CTX *ctx; + unsigned char *salt = vp->strvalue; + unsigned char *crypt = vp->strvalue + 2; + unsigned char plain[32]; + unsigned char buf[MD5_DIGEST_LENGTH]; + unsigned int buflen; char *type = "Send"; if (vp->attribute == PW_MS_MPPE_RECV_KEY) @@ -851,34 +891,81 @@ radius_setmppekeys2(VALUE_PAIR *vp, REQUEST_INFO *req_info) memcpy(plain, crypt, 32); - 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); + ctx = PPP_MD_CTX_new(); + if (ctx) { - for (i = 0; i < 16; i++) - plain[i] ^= buf[i]; + if (PPP_DigestInit(ctx, PPP_md5())) { - if (plain[0] != 16) { - error("RADIUS: Incorrect key length (%d) for MS-MPPE-%s-Key attribute", - (int) plain[0], type); - return -1; + if (PPP_DigestUpdate(ctx, req_info->secret, strlen(req_info->secret))) { + + if (PPP_DigestUpdate(ctx, req_info->request_vector, AUTH_VECTOR_LEN)) { + + if (PPP_DigestUpdate(ctx, salt, 2)) { + + buflen = sizeof(buf); + if (PPP_DigestFinal(ctx, buf, &buflen)) { + + status = 1; + } + } + } + } + } + + PPP_MD_CTX_free(ctx); } - MD5_Init(&Context); - MD5_Update(&Context, req_info->secret, strlen(req_info->secret)); - MD5_Update(&Context, crypt, 16); - MD5_Final(buf, &Context); + if (status) { - plain[16] ^= buf[0]; /* only need the first byte */ + for (i = 0; i < 16; i++) { + plain[i] ^= buf[i]; + } - if (vp->attribute == PW_MS_MPPE_SEND_KEY) - mppe_set_keys(plain + 1, NULL, 16); - else - mppe_set_keys(NULL, plain + 1, 16); + if (plain[0] != 16) { + error("RADIUS: Incorrect key length (%d) for MS-MPPE-%s-Key attribute", + (int) plain[0], type); + return -1; + } - return 0; + status = 0; + ctx = PPP_MD_CTX_new(); + if (ctx) { + + if (PPP_DigestInit(ctx, PPP_md5())) { + + if (PPP_DigestUpdate(ctx, req_info->secret, strlen(req_info->secret))) { + + if (PPP_DigestUpdate(ctx, crypt, 16)) { + + if (PPP_DigestUpdate(ctx, salt, 2)) { + + buflen = sizeof(buf); + if (PPP_DigestFinal(ctx, buf, &buflen)) { + + status = 1; + } + } + } + } + } + + PPP_MD_CTX_free(ctx); + } + + if (status) { + + plain[16] ^= buf[0]; /* only need the first byte */ + + if (vp->attribute == PW_MS_MPPE_SEND_KEY) { + mppe_set_keys(plain + 1, NULL, 16); + } else { + mppe_set_keys(NULL, plain + 1, 16); + } + return 0; + } + } + + return -1; } #endif /* PPP_WITH_MPPE */ @@ -1090,11 +1177,9 @@ radius_acct_stop(void) 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;