1 files changed, 229 insertions, 0 deletions

diff --git a/net/vtun/files/patch-lfd__encrypt.c b/net/vtun/files/patch-lfd__encrypt.c
new file mode 100644
index 000000000000..319e3f95ef79
--- /dev/null
+++ b/net/vtun/files/patch-lfd__encrypt.c
@@ -0,0 +1,229 @@
+--- lfd_encrypt.c.orig	2013-07-07 19:54:35 UTC
++++ lfd_encrypt.c
+@@ -95,11 +95,11 @@ static unsigned long sequence_num;
+ static char * pkey;
+ static char * iv_buf;
+ 
+-static EVP_CIPHER_CTX ctx_enc;	/* encrypt */
+-static EVP_CIPHER_CTX ctx_dec;	/* decrypt */
++static EVP_CIPHER_CTX *ctx_enc;	/* encrypt */
++static EVP_CIPHER_CTX *ctx_dec;	/* decrypt */
+ 
+-static EVP_CIPHER_CTX ctx_enc_ecb;	/* sideband ecb encrypt */
+-static EVP_CIPHER_CTX ctx_dec_ecb;	/* sideband ecb decrypt */
++static EVP_CIPHER_CTX *ctx_enc_ecb;	/* sideband ecb encrypt */
++static EVP_CIPHER_CTX *ctx_dec_ecb;	/* sideband ecb decrypt */
+ 
+ static int send_msg(int len, char *in, char **out);
+ static int recv_msg(int len, char *in, char **out);
+@@ -156,6 +156,11 @@ static int alloc_encrypt(struct vtun_host *host)
+    EVP_CIPHER_CTX *pctx_enc;
+    EVP_CIPHER_CTX *pctx_dec;
+ 
++   ctx_enc = EVP_CIPHER_CTX_new();
++   ctx_dec = EVP_CIPHER_CTX_new();
++   ctx_enc_ecb = EVP_CIPHER_CTX_new();
++   ctx_dec_ecb = EVP_CIPHER_CTX_new();
++
+    enc_init_first_time = 1;   
+    dec_init_first_time = 1;   
+ 
+@@ -182,15 +187,15 @@ static int alloc_encrypt(struct vtun_host *host)
+          keysize = 32;
+          sb_init = 1;
+          cipher_type = EVP_aes_256_ecb();
+-         pctx_enc = &ctx_enc_ecb;
+-         pctx_dec = &ctx_dec_ecb;
++         pctx_enc = ctx_enc_ecb;
++         pctx_dec = ctx_dec_ecb;
+       break;
+       
+       case VTUN_ENC_AES256ECB:
+          blocksize = 16;
+          keysize = 32;
+-         pctx_enc = &ctx_enc;
+-         pctx_dec = &ctx_dec;
++         pctx_enc = ctx_enc;
++         pctx_dec = ctx_dec;
+          cipher_type = EVP_aes_256_ecb();
+          strcpy(cipher_name,"AES-256-ECB");
+       break;      
+@@ -201,14 +206,14 @@ static int alloc_encrypt(struct vtun_host *host)
+          keysize = 16;
+          sb_init=1;
+          cipher_type = EVP_aes_128_ecb();
+-         pctx_enc = &ctx_enc_ecb;
+-         pctx_dec = &ctx_dec_ecb;
++         pctx_enc = ctx_enc_ecb;
++         pctx_dec = ctx_dec_ecb;
+       break;
+       case VTUN_ENC_AES128ECB:
+          blocksize = 16;
+          keysize = 16;
+-         pctx_enc = &ctx_enc;
+-         pctx_dec = &ctx_dec;
++         pctx_enc = ctx_enc;
++         pctx_dec = ctx_dec;
+          cipher_type = EVP_aes_128_ecb();
+          strcpy(cipher_name,"AES-128-ECB");
+       break;
+@@ -221,16 +226,16 @@ static int alloc_encrypt(struct vtun_host *host)
+          var_key = 1;
+          sb_init = 1;
+          cipher_type = EVP_bf_ecb();
+-         pctx_enc = &ctx_enc_ecb;
+-         pctx_dec = &ctx_dec_ecb;
++         pctx_enc = ctx_enc_ecb;
++         pctx_dec = ctx_dec_ecb;
+       break;
+ 
+       case VTUN_ENC_BF256ECB:
+          blocksize = 8;
+          keysize = 32;
+          var_key = 1;
+-         pctx_enc = &ctx_enc;
+-         pctx_dec = &ctx_dec;
++         pctx_enc = ctx_enc;
++         pctx_dec = ctx_dec;
+          cipher_type = EVP_bf_ecb();
+          strcpy(cipher_name,"Blowfish-256-ECB");
+       break;
+@@ -243,16 +248,16 @@ static int alloc_encrypt(struct vtun_host *host)
+          var_key = 1;
+          sb_init = 1;
+          cipher_type = EVP_bf_ecb();
+-         pctx_enc = &ctx_enc_ecb;
+-         pctx_dec = &ctx_dec_ecb;
++         pctx_enc = ctx_enc_ecb;
++         pctx_dec = ctx_dec_ecb;
+       break;
+       case VTUN_ENC_BF128ECB: /* blowfish 128 ecb is the default */
+       default:
+          blocksize = 8;
+          keysize = 16;
+          var_key = 1;
+-         pctx_enc = &ctx_enc;
+-         pctx_dec = &ctx_dec;
++         pctx_enc = ctx_enc;
++         pctx_dec = ctx_dec;
+          cipher_type = EVP_bf_ecb();
+          strcpy(cipher_name,"Blowfish-128-ECB");
+       break;
+@@ -294,10 +299,10 @@ static int free_encrypt()
+    lfd_free(enc_buf); enc_buf = NULL;
+    lfd_free(dec_buf); dec_buf = NULL;
+ 
+-   EVP_CIPHER_CTX_cleanup(&ctx_enc);
+-   EVP_CIPHER_CTX_cleanup(&ctx_dec);
+-   EVP_CIPHER_CTX_cleanup(&ctx_enc_ecb);
+-   EVP_CIPHER_CTX_cleanup(&ctx_dec_ecb);
++   EVP_CIPHER_CTX_cleanup(ctx_enc);
++   EVP_CIPHER_CTX_cleanup(ctx_dec);
++   EVP_CIPHER_CTX_cleanup(ctx_enc_ecb);
++   EVP_CIPHER_CTX_cleanup(ctx_dec_ecb);
+ 
+    return 0;
+ }
+@@ -323,7 +328,7 @@ static int encrypt_buf(int len, char *in, char **out)
+    outlen=len+pad;
+    if (pad == blocksize)
+       RAND_bytes(in_ptr+len, blocksize-1);
+-   EVP_EncryptUpdate(&ctx_enc, out_ptr, &outlen, in_ptr, len+pad);
++   EVP_EncryptUpdate(ctx_enc, out_ptr, &outlen, in_ptr, len+pad);
+    *out = enc_buf;
+ 
+    sequence_num++;
+@@ -343,7 +348,7 @@ static int decrypt_buf(int len, char *in, char **out)
+ 
+    outlen=len;
+    if (!len) return 0;
+-   EVP_DecryptUpdate(&ctx_dec, out_ptr, &outlen, in_ptr, len);
++   EVP_DecryptUpdate(ctx_dec, out_ptr, &outlen, in_ptr, len);
+    recv_ib_mesg(&outlen, &out_ptr);
+    if (!outlen) return 0;
+    tmp_ptr = out_ptr + outlen; tmp_ptr--;
+@@ -431,13 +436,13 @@ static int cipher_enc_init(char * iv)
+       break;
+    } /* switch(cipher) */
+ 
+-   EVP_CIPHER_CTX_init(&ctx_enc);
+-   EVP_EncryptInit_ex(&ctx_enc, cipher_type, NULL, NULL, NULL);
++   EVP_CIPHER_CTX_init(ctx_enc);
++   EVP_EncryptInit_ex(ctx_enc, cipher_type, NULL, NULL, NULL);
+    if (var_key)
+-      EVP_CIPHER_CTX_set_key_length(&ctx_enc, keysize);
+-   EVP_EncryptInit_ex(&ctx_enc, NULL, NULL, pkey, NULL);
+-   EVP_EncryptInit_ex(&ctx_enc, NULL, NULL, NULL, iv);
+-   EVP_CIPHER_CTX_set_padding(&ctx_enc, 0);
++      EVP_CIPHER_CTX_set_key_length(ctx_enc, keysize);
++   EVP_EncryptInit_ex(ctx_enc, NULL, NULL, pkey, NULL);
++   EVP_EncryptInit_ex(ctx_enc, NULL, NULL, NULL, iv);
++   EVP_CIPHER_CTX_set_padding(ctx_enc, 0);
+    if (enc_init_first_time)
+    {
+       sprintf(tmpstr,"%s encryption initialized", cipher_name);
+@@ -521,13 +526,13 @@ static int cipher_dec_init(char * iv)
+       break;
+    } /* switch(cipher) */
+ 
+-   EVP_CIPHER_CTX_init(&ctx_dec);
+-   EVP_DecryptInit_ex(&ctx_dec, cipher_type, NULL, NULL, NULL);
++   EVP_CIPHER_CTX_init(ctx_dec);
++   EVP_DecryptInit_ex(ctx_dec, cipher_type, NULL, NULL, NULL);
+    if (var_key)
+-      EVP_CIPHER_CTX_set_key_length(&ctx_dec, keysize);
+-   EVP_DecryptInit_ex(&ctx_dec, NULL, NULL, pkey, NULL);
+-   EVP_DecryptInit_ex(&ctx_dec, NULL, NULL, NULL, iv);
+-   EVP_CIPHER_CTX_set_padding(&ctx_dec, 0);
++      EVP_CIPHER_CTX_set_key_length(ctx_dec, keysize);
++   EVP_DecryptInit_ex(ctx_dec, NULL, NULL, pkey, NULL);
++   EVP_DecryptInit_ex(ctx_dec, NULL, NULL, NULL, iv);
++   EVP_CIPHER_CTX_set_padding(ctx_dec, 0);
+    if (dec_init_first_time)
+    {
+       sprintf(tmpstr,"%s decryption initialized", cipher_name);
+@@ -559,7 +564,7 @@ static int send_msg(int len, char *in, char **out)
+ 
+          in_ptr = in - blocksize*2;
+          outlen = blocksize*2;
+-         EVP_EncryptUpdate(&ctx_enc_ecb, in_ptr, 
++         EVP_EncryptUpdate(ctx_enc_ecb, in_ptr, 
+             &outlen, in_ptr, blocksize*2);
+          *out = in_ptr;
+          len = outlen;
+@@ -586,7 +591,7 @@ static int recv_msg(int len, char *in, char **out)
+          in_ptr = in;
+          iv = malloc(blocksize);
+          outlen = blocksize*2;
+-         EVP_DecryptUpdate(&ctx_dec_ecb, in_ptr, &outlen, in_ptr, blocksize*2);
++         EVP_DecryptUpdate(ctx_dec_ecb, in_ptr, &outlen, in_ptr, blocksize*2);
+          
+          if ( !strncmp(in_ptr, "ivec", 4) )
+          {
+@@ -629,7 +634,7 @@ static int recv_msg(int len, char *in, char **out)
+                if (cipher_enc_state != CIPHER_INIT)
+                {
+                   cipher_enc_state = CIPHER_INIT;
+-                  EVP_CIPHER_CTX_cleanup(&ctx_enc);
++                  EVP_CIPHER_CTX_cleanup(ctx_enc);
+ #ifdef LFD_ENCRYPT_DEBUG
+                   vtun_syslog(LOG_INFO, 
+                      "Forcing local encryptor re-init");
+@@ -710,7 +715,7 @@ static int recv_ib_mesg(int *len, char **in)
+          if (cipher_enc_state != CIPHER_INIT)
+          {
+             cipher_enc_state = CIPHER_INIT;
+-            EVP_CIPHER_CTX_cleanup(&ctx_enc);
++            EVP_CIPHER_CTX_cleanup(ctx_enc);
+          }
+ #ifdef LFD_ENCRYPT_DEBUG
+          vtun_syslog(LOG_INFO, "Remote requests encryptor re-init");
+@@ -724,7 +729,7 @@ static int recv_ib_mesg(int *len, char **in)
+              cipher_enc_state != CIPHER_REQ_INIT &&
+              cipher_enc_state != CIPHER_INIT)
+          {
+-            EVP_CIPHER_CTX_cleanup (&ctx_dec);
++            EVP_CIPHER_CTX_cleanup (ctx_dec);
+             cipher_dec_state = CIPHER_INIT;
+             cipher_enc_state = CIPHER_REQ_INIT;
+          }