static char const RCSID[] =
"$Id: radius.c,v 1.32 2008/05/26 09:18:08 paulus Exp $";
-#include "pppd.h"
-#include "chap-new.h"
-#ifdef CHAPMS
-#include "chap_ms.h"
-#ifdef MPPE
-#include "md5.h"
-#endif
-#endif
-#include "radiusclient.h"
-#include "fsm.h"
-#include "ipcp.h"
#include <syslog.h>
#include <sys/types.h>
#include <sys/time.h>
+#include <sys/param.h>
#include <string.h>
#include <netinet/in.h>
#include <stdlib.h>
-#define BUF_LEN 1024
+#include <pppd/pppd.h>
+#include <pppd/chap-new.h>
+#ifdef PPP_WITH_CHAPMS
+#include <pppd/chap_ms.h>
+#ifdef PPP_WITH_MPPE
+#include <pppd/mppe.h>
+#include <pppd/ppp-crypto.h>
+#endif
+#endif
+#include <pppd/fsm.h>
+#include <pppd/ipcp.h>
+
+#include "radiusclient.h"
-#define MD5_HASH_SIZE 16
+#define BUF_LEN 1024
#define MSDNS 1
static int get_client_port(char *ifname);
static int radius_allowed_address(u_int32_t addr);
static void radius_acct_interim(void *);
-#ifdef MPPE
+#ifdef PPP_WITH_MPPE
static int radius_setmppekeys(VALUE_PAIR *vp, REQUEST_INFO *req_info,
unsigned char *);
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;
static struct radius_state rstate;
-char pppd_version[] = VERSION;
+char pppd_version[] = PPPD_VERSION;
/**********************************************************************
* %FUNCTION: plugin_init
* 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)
int result;
int challenge_len, response_len;
u_char cpassword[MAX_RESPONSE_LEN + 1];
-#ifdef MPPE
+#ifdef PPP_WITH_MPPE
/* Need the RADIUS secret and Request Authenticator to decode MPPE */
REQUEST_INFO request_info, *req_info = &request_info;
#else
/* return error for types we can't handle */
if ((digest->code != CHAP_MD5)
-#ifdef CHAPMS
+#ifdef PPP_WITH_CHAPMS
&& (digest->code != CHAP_MICROSOFT)
&& (digest->code != CHAP_MICROSOFT_V2)
#endif
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 CHAPMS
+#ifdef PPP_WITH_CHAPMS
case CHAP_MICROSOFT:
{
/* MS-CHAP-Challenge and MS-CHAP-Response */
{
u_int32_t remote;
int ms_chap2_success = 0;
-#ifdef MPPE
+#ifdef PPP_WITH_MPPE
int mppe_enc_keys = 0; /* whether or not these were received */
int mppe_enc_policy = 0;
int mppe_enc_types = 0;
break;
case PW_FILTER_ID:
/* packet filter, will be handled via ip-(up|down) script */
- script_setenv("RADIUS_FILTER_ID", vp->strvalue, 1);
+ 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", vp->strvalue, 1);
+ 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 */
maxoctets = vp->lvalue;
/* 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;
} else if (vp->vendorcode == VENDOR_MICROSOFT) {
-#ifdef CHAPMS
+#ifdef PPP_WITH_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;
-#ifdef MPPE
+#ifdef PPP_WITH_MPPE
case PW_MS_CHAP_MPPE_KEYS:
if (radius_setmppekeys(vp, req_info, challenge) < 0) {
slprintf(msg, BUF_LEN,
mppe_enc_types = vp->lvalue; /* save for later */
break;
-#endif /* MPPE */
+#endif /* PPP_WITH_MPPE */
#ifdef MSDNS
case PW_MS_PRIMARY_DNS_SERVER:
ao->dnsaddr[0] = htonl(vp->lvalue);
break;
#endif /* MSDNS */
}
-#endif /* CHAPMS */
+#endif /* PPP_WITH_CHAPMS */
}
vp = vp->next;
}
if (digest && (digest->code == CHAP_MICROSOFT_V2) && !ms_chap2_success)
return -1;
-#ifdef MPPE
+#ifdef PPP_WITH_MPPE
/*
* Require both policy and key attributes to indicate a valid key.
* 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;
}
-#ifdef MPPE
+#ifdef PPP_WITH_MPPE
/**********************************************************************
* %FUNCTION: radius_setmppekeys
* %ARGUMENTS:
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",
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_keys(challenge, &plain[8]);
+ buflen = sizeof(buf);
+ if (PPP_DigestFinal(ctx, buf, &buflen)) {
+
+ status = 1;
+ }
+ }
+ }
+ }
+ PPP_MD_CTX_free(ctx);
+ }
+
+ if (status) {
- return 0;
+ 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)) {
+
+ 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;
}
/**********************************************************************
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)
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] != sizeof(mppe_send_key) /* 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)
- memcpy(mppe_send_key, plain + 1, 16);
- else
- memcpy(mppe_recv_key, 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 /* MPPE */
+#endif /* PPP_WITH_MPPE */
/**********************************************************************
* %FUNCTION: radius_acct_start
/* 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);
}
}
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);
av_type = link_connect_time;
rc_avpair_add(&send, PW_ACCT_SESSION_TIME, &av_type, 0, VENDOR_NONE);
- av_type = link_stats.bytes_out;
+ av_type = link_stats.bytes_out & 0xFFFFFFFF;
rc_avpair_add(&send, PW_ACCT_OUTPUT_OCTETS, &av_type, 0, VENDOR_NONE);
- av_type = link_stats.bytes_in;
+ if (link_stats.bytes_out > 0xFFFFFFFF) {
+ av_type = link_stats.bytes_out >> 32;
+ rc_avpair_add(&send, PW_ACCT_OUTPUT_GIGAWORDS, &av_type, 0, VENDOR_NONE);
+ }
+
+ av_type = link_stats.bytes_in & 0xFFFFFFFF;
rc_avpair_add(&send, PW_ACCT_INPUT_OCTETS, &av_type, 0, VENDOR_NONE);
+ if (link_stats.bytes_in > 0xFFFFFFFF) {
+ av_type = link_stats.bytes_in >> 32;
+ rc_avpair_add(&send, PW_ACCT_INPUT_GIGAWORDS, &av_type, 0, VENDOR_NONE);
+ }
+
av_type = link_stats.pkts_out;
rc_avpair_add(&send, PW_ACCT_OUTPUT_PACKETS, &av_type, 0, VENDOR_NONE);
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;
return;
}
- if (!rstate.accounting_started) {
- return;
- }
-
rc_avpair_add(&send, PW_ACCT_SESSION_ID, rstate.session_id,
0, VENDOR_NONE);
av_type = link_connect_time;
rc_avpair_add(&send, PW_ACCT_SESSION_TIME, &av_type, 0, VENDOR_NONE);
- av_type = link_stats.bytes_out;
+ av_type = link_stats.bytes_out & 0xFFFFFFFF;
rc_avpair_add(&send, PW_ACCT_OUTPUT_OCTETS, &av_type, 0, VENDOR_NONE);
- av_type = link_stats.bytes_in;
+ if (link_stats.bytes_out > 0xFFFFFFFF) {
+ av_type = link_stats.bytes_out >> 32;
+ rc_avpair_add(&send, PW_ACCT_OUTPUT_GIGAWORDS, &av_type, 0, VENDOR_NONE);
+ }
+
+ av_type = link_stats.bytes_in & 0xFFFFFFFF;
rc_avpair_add(&send, PW_ACCT_INPUT_OCTETS, &av_type, 0, VENDOR_NONE);
+ if (link_stats.bytes_in > 0xFFFFFFFF) {
+ av_type = link_stats.bytes_in >> 32;
+ rc_avpair_add(&send, PW_ACCT_INPUT_GIGAWORDS, &av_type, 0, VENDOR_NONE);
+ }
+
av_type = link_stats.pkts_out;
rc_avpair_add(&send, PW_ACCT_OUTPUT_PACKETS, &av_type, 0, VENDOR_NONE);
projects / ppp.git / blobdiff