#include "pppd.h"
#include "pathnames.h"
-#include "md5.h"
+#include "ppp-crypto.h"
#include "eap.h"
#ifdef PPP_WITH_PEAP
#include "peap.h"
#include <t_pwd.h>
#include <t_server.h>
#include <t_client.h>
-#include "pppcrypt.h"
#endif /* PPP_WITH_SRP */
#ifndef SHA_DIGESTSIZE
{
struct tm *tp;
char tbuf[9];
- SHA1_CTX ctxt;
+ PPP_MD_CTX *ctxt;
u_char dig[SHA_DIGESTSIZE];
+ int diglen = sizeof(dig);
time_t reftime;
if (pn_secret == NULL)
return (0);
reftime = time(NULL) + timeoffs;
tp = localtime(&reftime);
- SHA1Init(&ctxt);
- SHA1Update(&ctxt, pn_secret, strlen(pn_secret));
- strftime(tbuf, sizeof (tbuf), "%Y%m%d", tp);
- SHA1Update(&ctxt, tbuf, strlen(tbuf));
- SHA1Final(dig, &ctxt);
- return (DesSetkey(dig));
+ ctxt = PPP_MD_CTX_new();
+ if (ctxt) {
+
+ strftime(tbuf, sizeof (tbuf), "%Y%m%d", tp);
+
+ PPP_DigestInit(ctxt, PPP_sha1());
+ PPP_DigestUpdate(ctxt, pn_secret, strlen(pn_secret));
+ PPP_DigestUpdate(ctxt, tbuf, strlen(tbuf));
+ PPP_DigestFinal(ctxt, dig, &diglen);
+
+ PPP_MD_CTX_free(ctxt);
+ return (DesSetkey(dig));
+ }
+
+ return (0);
}
static char base64[] =
#ifdef PPP_WITH_SRP
struct t_server *ts;
u_char clear[8], cipher[8], dig[SHA_DIGESTSIZE], *optr, *cp;
- int i, j;
+ int i, j, diglen;
struct b64state b64;
- SHA1_CTX ctxt;
+ PPP_MD_CTX *ctxt;
#endif /* PPP_WITH_SRP */
/* Handle both initial auth and restart */
}
/* Obscure the pseudonym with SHA1 hash */
- SHA1Init(&ctxt);
- SHA1Update(&ctxt, &esp->es_server.ea_id, 1);
- SHA1Update(&ctxt, esp->es_server.ea_skey,
- SESSION_KEY_LEN);
- SHA1Update(&ctxt, esp->es_server.ea_peer,
- esp->es_server.ea_peerlen);
- while (optr < outp) {
- SHA1Final(dig, &ctxt);
- cp = dig;
- while (cp < dig + SHA_DIGESTSIZE)
- *optr++ ^= *cp++;
- SHA1Init(&ctxt);
- SHA1Update(&ctxt, &esp->es_server.ea_id, 1);
- SHA1Update(&ctxt, esp->es_server.ea_skey,
- SESSION_KEY_LEN);
- SHA1Update(&ctxt, optr - SHA_DIGESTSIZE,
- SHA_DIGESTSIZE);
- }
+ ctxt = PPP_MD_CTX_new();
+ if (ctxt) {
+
+ PPP_DigestInit(ctxt, PPP_sha1());
+ PPP_DigestUpdate(ctxt, &esp->es_server.ea_id, 1);
+ PPP_DigestUpdate(ctxt, &esp->es_server.ea_skey,
+ SESSION_KEY_LEN);
+ PPP_DigestUpdate(ctxt, esp->es_server.ea_peer,
+ esp->es_server.ea_peerlen);
+
+ while (optr < outp) {
+ diglen = SHA_DIGEST_LENGTH;
+ PPP_DigestFinal(ctxt, dig, &diglen);
+ cp = dig;
+ while (cp < dig + SHA_DIGEST_LENGTH)
+ *optr++ ^= *cp++;
+
+ PPP_DigestInit(ctxt, PPP_sha1());
+ PPP_DigestUpdate(ctxt, &esp->es_server.ea_id, 1);
+ PPP_DigestUpdate(ctxt, esp->es_server.ea_skey,
+ SESSION_KEY_LEN);
+ PPP_DigestUpdate(ctxt, optr - SHA_DIGEST_LENGTH,
+ SHA_DIGEST_LENGTH);
+ }
+
+ PPP_MD_CTX_free(ctxt);
+ }
}
break;
int msglen;
outp = outpacket_buf;
-
+
MAKEHEADER(outp, PPP_EAP);
PUTCHAR(EAP_RESPONSE, outp);
{
u_char val;
u_char *datp, *digp;
- SHA1_CTX ctxt;
+ PPP_MD_CTX *ctxt;
u_char dig[SHA_DIGESTSIZE];
- int dsize, fd, olen = len;
+ int dsize, fd, olen = len, diglen = sizeof(dig);
/*
* Do the decoding by working backwards. This eliminates the need
dsize = SHA_DIGESTSIZE;
len -= dsize;
datp = inp + len;
- SHA1Init(&ctxt);
- SHA1Update(&ctxt, &val, 1);
- SHA1Update(&ctxt, esp->es_client.ea_skey, SESSION_KEY_LEN);
- if (len > 0) {
- SHA1Update(&ctxt, datp, SHA_DIGESTSIZE);
- } else {
- SHA1Update(&ctxt, esp->es_client.ea_name,
- esp->es_client.ea_namelen);
- }
- SHA1Final(dig, &ctxt);
- for (digp = dig; digp < dig + SHA_DIGESTSIZE; digp++)
- *datp++ ^= *digp;
+ ctxt = PPP_MD_CTX_new();
+ if (ctxt) {
+
+ PPP_DigestInit(ctxt, PPP_sha1());
+ PPP_DigestUpdate(ctxt, &val, 1);
+ PPP_DigestUpdate(ctxt, esp->es_client.ea_skey,
+ SESSION_KEY_LEN);
+ if (len > 0) {
+ PPP_DigestUpdate(ctxt, datp, SHA_DIGESTSIZE);
+ } else {
+ PPP_DigestUpdate(ctxt, esp->es_client.ea_name,
+ esp->es_client.ea_namelen);
+ }
+ PPP_DigestFinal(ctxt, dig, &diglen);
+
+ for (digp = dig; digp < dig + SHA_DIGEST_LENGTH; digp++)
+ *datp++ ^= *digp;
+
+ PPP_MD_CTX_free(ctxt);
+ }
}
/* Now check that the result is sane */
int secret_len;
char secret[MAXWORDLEN];
char rhostname[256];
- MD5_CTX mdContext;
+ PPP_MD_CTX *mdctx;
u_char hash[MD5_SIGNATURE_SIZE];
+ int hashlen = MD5_SIGNATURE_SIZE;
#ifdef PPP_WITH_EAPTLS
u_char flags;
struct eaptls_session *ets = esp->es_client.ea_session;
struct t_client *tc;
struct t_num sval, gval, Nval, *Ap, Bval;
u_char vals[2];
- SHA1_CTX ctxt;
+ PPP_MD_CTX *ctxt;
u_char dig[SHA_DIGESTSIZE];
+ int diglen = sizeof(dig);
int fd;
#endif /* PPP_WITH_SRP */
eap_send_nak(esp, id, EAPT_SRP);
break;
}
- MD5_Init(&mdContext);
- typenum = id;
- MD5_Update(&mdContext, &typenum, 1);
- MD5_Update(&mdContext, (u_char *)secret, secret_len);
- BZERO(secret, sizeof (secret));
- MD5_Update(&mdContext, inp, vallen);
- MD5_Final(hash, &mdContext);
- eap_chap_response(esp, id, hash, esp->es_client.ea_name,
- esp->es_client.ea_namelen);
+
+ mdctx = PPP_MD_CTX_new();
+ if (mdctx != NULL) {
+ if (PPP_DigestInit(mdctx, PPP_md5())) {
+ typenum = id;
+ if (PPP_DigestUpdate(mdctx, &typenum, 1)) {
+ if (PPP_DigestUpdate(mdctx, secret, secret_len)) {
+ BZERO(secret, sizeof(secret));
+ if (PPP_DigestUpdate(mdctx, inp, vallen)) {
+ if (PPP_DigestFinal(mdctx, hash, &hashlen)) {
+ eap_chap_response(esp, id, hash, esp->es_client.ea_name,
+ esp->es_client.ea_namelen);
+ PPP_MD_CTX_free(mdctx);
+ break;
+ }
+ }
+ }
+ }
+ }
+ PPP_MD_CTX_free(mdctx);
+ }
+ dbglog("EAP: Invalid MD5 checksum");
+ eap_send_nak(esp, id, EAPT_SRP);
break;
#ifdef PPP_WITH_EAPTLS
warn("EAP: malformed Lightweight rechallenge");
return;
}
- SHA1Init(&ctxt);
- vals[0] = id;
- SHA1Update(&ctxt, vals, 1);
- SHA1Update(&ctxt, esp->es_client.ea_skey,
- SESSION_KEY_LEN);
- SHA1Update(&ctxt, inp, len);
- SHA1Update(&ctxt, esp->es_client.ea_name,
- esp->es_client.ea_namelen);
- SHA1Final(dig, &ctxt);
- eap_srp_response(esp, id, EAPSRP_LWRECHALLENGE, dig,
- SHA_DIGESTSIZE);
- break;
+ ctxt = PPP_MD_CTX_new();
+ if (ctxt) {
+
+ vals[0] = id;
+ PPP_DigestInit(ctxt, PPP_sha1());
+ PPP_DigestUpdate(ctxt, vals, 1);
+ PPP_DigestUpdate(ctxt, esp->es_client.ea_skey,
+ SESSION_KEY_LEN);
+ PPP_DigestUpdate(ctxt, inp, len);
+ PPP_DigestUpdate(ctxt, esp->es_client.ea_name,
+ esp->es_client.ea_namelen);
+ PPP_DigestFinal(ctxt, dig, &diglen);
+
+ PPP_MD_CTX_free(ctxt);
+
+ eap_srp_response(esp, id, EAPSRP_LWRECHALLENGE, dig,
+ SHA_DIGESTSIZE);
+ }
+ break;
default:
error("EAP: unknown SRP Subtype %d", vallen);
}
break;
#endif /* PPP_WITH_SRP */
-
+
#ifdef PPP_WITH_CHAPMS
case EAPT_MSCHAPV2:
if (len < 4) {
int secret_len;
char secret[MAXSECRETLEN];
char rhostname[256];
- MD5_CTX mdContext;
+ PPP_MD_CTX *mdctx;
u_char hash[MD5_SIGNATURE_SIZE];
+ int hashlen = MD5_SIGNATURE_SIZE;
#ifdef PPP_WITH_SRP
struct t_server *ts;
struct t_num A;
- SHA1_CTX ctxt;
+ PPP_MD_CTX *ctxt;
u_char dig[SHA_DIGESTSIZE];
+ int diglen = sizeof(dig);
#endif /* PPP_WITH_SRP */
#ifdef PPP_WITH_EAPTLS
eap_send_failure(esp);
break;
}
- MD5_Init(&mdContext);
- MD5_Update(&mdContext, &esp->es_server.ea_id, 1);
- MD5_Update(&mdContext, (u_char *)secret, secret_len);
- BZERO(secret, sizeof (secret));
- MD5_Update(&mdContext, esp->es_challenge, esp->es_challen);
- MD5_Final(hash, &mdContext);
- if (BCMP(hash, inp, MD5_SIGNATURE_SIZE) != 0) {
- eap_send_failure(esp);
- break;
- }
- esp->es_server.ea_type = EAPT_MD5CHAP;
- eap_send_success(esp);
- eap_figure_next_state(esp, 0);
- if (esp->es_rechallenge != 0)
- TIMEOUT(eap_rechallenge, esp, esp->es_rechallenge);
+
+ mdctx = PPP_MD_CTX_new();
+ if (mdctx != NULL) {
+
+ if (PPP_DigestInit(mdctx, PPP_md5())) {
+
+ if (PPP_DigestUpdate(mdctx, &esp->es_server.ea_id, 1)) {
+
+ if (PPP_DigestUpdate(mdctx, &secret, secret_len)) {
+
+ BZERO(secret, sizeof(secret));
+ if (PPP_DigestUpdate(mdctx, esp->es_challenge, esp->es_challen)) {
+
+ if (PPP_DigestFinal(mdctx, hash, &hashlen)) {
+
+ if (BCMP(hash, inp, MD5_SIGNATURE_SIZE) == 0) {
+
+ esp->es_server.ea_type = EAPT_MD5CHAP;
+ eap_send_success(esp);
+ eap_figure_next_state(esp, 0);
+
+ if (esp->es_rechallenge != 0) {
+ TIMEOUT(eap_rechallenge, esp, esp->es_rechallenge);
+ }
+ PPP_MD_CTX_free(mdctx);
+ break;
+ }
+ }
+ }
+ }
+ }
+ }
+
+ PPP_MD_CTX_free(mdctx);
+ }
+
+ eap_send_failure(esp);
break;
#ifdef PPP_WITH_CHAPMS
"response");
return;
}
- SHA1Init(&ctxt);
- vallen = id;
- SHA1Update(&ctxt, &vallen, 1);
- SHA1Update(&ctxt, esp->es_server.ea_skey,
- SESSION_KEY_LEN);
- SHA1Update(&ctxt, esp->es_challenge, esp->es_challen);
- SHA1Update(&ctxt, esp->es_server.ea_peer,
- esp->es_server.ea_peerlen);
- SHA1Final(dig, &ctxt);
- if (BCMP(dig, inp, SHA_DIGESTSIZE) != 0) {
- error("EAP: failed Lightweight rechallenge");
- eap_send_failure(esp);
- break;
- }
- esp->es_server.ea_state = eapOpen;
- if (esp->es_lwrechallenge != 0)
- TIMEOUT(srp_lwrechallenge, esp,
- esp->es_lwrechallenge);
+ ctxt = PPP_MD_CTX_new();
+ if (ctxt) {
+ vallen = id;
+
+ PPP_DigestInit(ctxt, PPP_sha1());
+ PPP_DigestUpdate(ctxt, &vallen, 1);
+ PPP_DigestUpdate(ctxt, esp->es_server.ea_skey,
+ SESSION_KEY_LEN);
+ PPP_DigestUpdate(ctxt, esp->es_challenge, esp->es_challen);
+ PPP_DigestUpdate(ctxt, esp->es_server.ea_peer,
+ esp->es_server.ea_peerlen);
+ PPP_DigestFinal(ctxt, dig, &diglen);
+
+ PPP_MD_CTX_free(ctxt);
+
+ if (BCMP(dig, inp, SHA_DIGEST_LENGTH) != 0) {
+ error("EAP: failed Lightweight rechallenge");
+ eap_send_failure(esp);
+ break;
+ }
+
+ esp->es_server.ea_state = eapOpen;
+ if (esp->es_lwrechallenge != 0)
+ TIMEOUT(srp_lwrechallenge, esp,
+ esp->es_lwrechallenge);
+ }
break;
}
break;
projects / ppp.git / blobdiff