diff options
Diffstat (limited to 'fs/ecryptfs/keystore.c')
| -rw-r--r-- | fs/ecryptfs/keystore.c | 55 |
1 files changed, 30 insertions, 25 deletions
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c index 09e2340ab783..89d9710dd63d 100644 --- a/fs/ecryptfs/keystore.c +++ b/fs/ecryptfs/keystore.c @@ -436,7 +436,8 @@ decrypt_pki_encrypted_session_key(struct ecryptfs_auth_tok *auth_tok, size_t netlink_message_length; int rc; - if ((rc = ecryptfs_get_auth_tok_sig(&auth_tok_sig, auth_tok))) { + rc = ecryptfs_get_auth_tok_sig(&auth_tok_sig, auth_tok); + if (rc) { printk(KERN_ERR "Unrecognized auth tok type: [%d]\n", auth_tok->token_type); goto out; @@ -569,8 +570,9 @@ parse_tag_1_packet(struct ecryptfs_crypt_stat *crypt_stat, goto out; } (*new_auth_tok) = &auth_tok_list_item->auth_tok; - if ((rc = parse_packet_length(&data[(*packet_size)], &body_size, - &length_size))) { + rc = parse_packet_length(&data[(*packet_size)], &body_size, + &length_size); + if (rc) { printk(KERN_WARNING "Error parsing packet length; " "rc = [%d]\n", rc); goto out_free; @@ -702,8 +704,9 @@ parse_tag_3_packet(struct ecryptfs_crypt_stat *crypt_stat, goto out; } (*new_auth_tok) = &auth_tok_list_item->auth_tok; - if ((rc = parse_packet_length(&data[(*packet_size)], &body_size, - &length_size))) { + rc = parse_packet_length(&data[(*packet_size)], &body_size, + &length_size); + if (rc) { printk(KERN_WARNING "Error parsing packet length; rc = [%d]\n", rc); goto out_free; @@ -849,8 +852,9 @@ parse_tag_11_packet(unsigned char *data, unsigned char *contents, rc = -EINVAL; goto out; } - if ((rc = parse_packet_length(&data[(*packet_size)], &body_size, - &length_size))) { + rc = parse_packet_length(&data[(*packet_size)], &body_size, + &length_size); + if (rc) { printk(KERN_WARNING "Invalid tag 11 packet format\n"); goto out; } @@ -1052,9 +1056,10 @@ decrypt_passphrase_encrypted_session_key(struct ecryptfs_auth_tok *auth_tok, crypt_stat->cipher, rc); goto out; } - if ((rc = virt_to_scatterlist(auth_tok->session_key.encrypted_key, - auth_tok->session_key.encrypted_key_size, - &src_sg, 1)) != 1) { + rc = virt_to_scatterlist(auth_tok->session_key.encrypted_key, + auth_tok->session_key.encrypted_key_size, + &src_sg, 1); + if (rc != 1) { printk(KERN_ERR "Internal error whilst attempting to convert " "auth_tok->session_key.encrypted_key to scatterlist; " "expected rc = 1; got rc = [%d]. " @@ -1064,9 +1069,10 @@ decrypt_passphrase_encrypted_session_key(struct ecryptfs_auth_tok *auth_tok, } auth_tok->session_key.decrypted_key_size = auth_tok->session_key.encrypted_key_size; - if ((rc = virt_to_scatterlist(auth_tok->session_key.decrypted_key, - auth_tok->session_key.decrypted_key_size, - &dst_sg, 1)) != 1) { + rc = virt_to_scatterlist(auth_tok->session_key.decrypted_key, + auth_tok->session_key.decrypted_key_size, + &dst_sg, 1); + if (rc != 1) { printk(KERN_ERR "Internal error whilst attempting to convert " "auth_tok->session_key.decrypted_key to scatterlist; " "expected rc = 1; got rc = [%d]\n", rc); @@ -1236,18 +1242,17 @@ find_next_matching_auth_tok: "Considering cadidate auth tok:\n"); ecryptfs_dump_auth_tok(candidate_auth_tok); } - if ((rc = ecryptfs_get_auth_tok_sig(&candidate_auth_tok_sig, - candidate_auth_tok))) { + rc = ecryptfs_get_auth_tok_sig(&candidate_auth_tok_sig, + candidate_auth_tok); + if (rc) { printk(KERN_ERR "Unrecognized candidate auth tok type: [%d]\n", candidate_auth_tok->token_type); rc = -EINVAL; goto out_wipe_list; } - if ((rc = ecryptfs_find_auth_tok_for_sig( - &matching_auth_tok, crypt_stat, - candidate_auth_tok_sig))) - rc = 0; + ecryptfs_find_auth_tok_for_sig(&matching_auth_tok, crypt_stat, + candidate_auth_tok_sig); if (matching_auth_tok) { found_auth_tok = 1; goto found_matching_auth_tok; @@ -1605,9 +1610,9 @@ write_tag_3_packet(char *dest, size_t *remaining_bytes, ecryptfs_printk(KERN_DEBUG, "Session key encryption key:\n"); ecryptfs_dump_hex(session_key_encryption_key, 16); } - if ((rc = virt_to_scatterlist(crypt_stat->key, - key_rec->enc_key_size, &src_sg, 1)) - != 1) { + rc = virt_to_scatterlist(crypt_stat->key, key_rec->enc_key_size, + &src_sg, 1); + if (rc != 1) { ecryptfs_printk(KERN_ERR, "Error generating scatterlist " "for crypt_stat session key; expected rc = 1; " "got rc = [%d]. key_rec->enc_key_size = [%d]\n", @@ -1615,9 +1620,9 @@ write_tag_3_packet(char *dest, size_t *remaining_bytes, rc = -ENOMEM; goto out; } - if ((rc = virt_to_scatterlist(key_rec->enc_key, - key_rec->enc_key_size, &dst_sg, 1)) - != 1) { + rc = virt_to_scatterlist(key_rec->enc_key, key_rec->enc_key_size, + &dst_sg, 1); + if (rc != 1) { ecryptfs_printk(KERN_ERR, "Error generating scatterlist " "for crypt_stat encrypted session key; " "expected rc = 1; got rc = [%d]. " |