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| author | Michael Halcrow <mhalcrow@us.ibm.com> | 2007-02-12 00:53:49 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-12 09:48:37 -0800 |
| commit | e2bd99ec5c0e20ed6aeb079fa8f975c2dcd78a2c (patch) | |
| tree | 78892d49cf55fa4cf22ce9b8b226c63bac8b227c /fs/ecryptfs/keystore.c | |
| parent | 9d8b8ce5561890464c54645cdea4d6b157159fec (diff) | |
| download | linux-3.10-e2bd99ec5c0e20ed6aeb079fa8f975c2dcd78a2c.tar.gz linux-3.10-e2bd99ec5c0e20ed6aeb079fa8f975c2dcd78a2c.tar.bz2 linux-3.10-e2bd99ec5c0e20ed6aeb079fa8f975c2dcd78a2c.zip | |
[PATCH] eCryptfs: open-code flag checking and manipulation
Open-code flag checking and manipulation.
Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Trevor Highland <tshighla@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ecryptfs/keystore.c')
| -rw-r--r-- | fs/ecryptfs/keystore.c | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c index 558d538e2b1..c209f67e7a2 100644 --- a/fs/ecryptfs/keystore.c +++ b/fs/ecryptfs/keystore.c @@ -607,13 +607,13 @@ parse_tag_1_packet(struct ecryptfs_crypt_stat *crypt_stat, (*new_auth_tok)->session_key.flags |= ECRYPTFS_CONTAINS_ENCRYPTED_KEY; (*new_auth_tok)->token_type = ECRYPTFS_PRIVATE_KEY; - ECRYPTFS_SET_FLAG((*new_auth_tok)->flags, ECRYPTFS_PRIVATE_KEY); + (*new_auth_tok)->flags |= ECRYPTFS_PRIVATE_KEY; /* TODO: Why are we setting this flag here? Don't we want the * userspace to decrypt the session key? */ - ECRYPTFS_CLEAR_FLAG((*new_auth_tok)->session_key.flags, - ECRYPTFS_USERSPACE_SHOULD_TRY_TO_DECRYPT); - ECRYPTFS_CLEAR_FLAG((*new_auth_tok)->session_key.flags, - ECRYPTFS_USERSPACE_SHOULD_TRY_TO_ENCRYPT); + (*new_auth_tok)->session_key.flags &= + ~(ECRYPTFS_USERSPACE_SHOULD_TRY_TO_DECRYPT); + (*new_auth_tok)->session_key.flags &= + ~(ECRYPTFS_USERSPACE_SHOULD_TRY_TO_ENCRYPT); list_add(&auth_tok_list_item->list, auth_tok_list); goto out; out_free: @@ -793,10 +793,10 @@ parse_tag_3_packet(struct ecryptfs_crypt_stat *crypt_stat, (*new_auth_tok)->token_type = ECRYPTFS_PASSWORD; /* TODO: Parametarize; we might actually want userspace to * decrypt the session key. */ - ECRYPTFS_CLEAR_FLAG((*new_auth_tok)->session_key.flags, - ECRYPTFS_USERSPACE_SHOULD_TRY_TO_DECRYPT); - ECRYPTFS_CLEAR_FLAG((*new_auth_tok)->session_key.flags, - ECRYPTFS_USERSPACE_SHOULD_TRY_TO_ENCRYPT); + (*new_auth_tok)->session_key.flags &= + ~(ECRYPTFS_USERSPACE_SHOULD_TRY_TO_DECRYPT); + (*new_auth_tok)->session_key.flags &= + ~(ECRYPTFS_USERSPACE_SHOULD_TRY_TO_ENCRYPT); list_add(&auth_tok_list_item->list, auth_tok_list); goto out; out_free: @@ -941,8 +941,7 @@ static int decrypt_session_key(struct ecryptfs_auth_tok *auth_tok, int rc = 0; password_s_ptr = &auth_tok->token.password; - if (ECRYPTFS_CHECK_FLAG(password_s_ptr->flags, - ECRYPTFS_SESSION_KEY_ENCRYPTION_KEY_SET)) + if (password_s_ptr->flags & ECRYPTFS_SESSION_KEY_ENCRYPTION_KEY_SET) ecryptfs_printk(KERN_DEBUG, "Session key encryption key " "set; skipping key generation\n"); ecryptfs_printk(KERN_DEBUG, "Session key encryption key (size [%d])" @@ -1024,7 +1023,7 @@ static int decrypt_session_key(struct ecryptfs_auth_tok *auth_tok, auth_tok->session_key.flags |= ECRYPTFS_CONTAINS_DECRYPTED_KEY; memcpy(crypt_stat->key, auth_tok->session_key.decrypted_key, auth_tok->session_key.decrypted_key_size); - ECRYPTFS_SET_FLAG(crypt_stat->flags, ECRYPTFS_KEY_VALID); + crypt_stat->flags |= ECRYPTFS_KEY_VALID; ecryptfs_printk(KERN_DEBUG, "Decrypted session key:\n"); if (ecryptfs_verbosity > 0) ecryptfs_dump_hex(crypt_stat->key, @@ -1127,8 +1126,7 @@ int ecryptfs_parse_packet_set(struct ecryptfs_crypt_stat *crypt_stat, sig_tmp_space, tag_11_contents_size); new_auth_tok->token.password.signature[ ECRYPTFS_PASSWORD_SIG_SIZE] = '\0'; - ECRYPTFS_SET_FLAG(crypt_stat->flags, - ECRYPTFS_ENCRYPTED); + crypt_stat->flags |= ECRYPTFS_ENCRYPTED; break; case ECRYPTFS_TAG_1_PACKET_TYPE: rc = parse_tag_1_packet(crypt_stat, @@ -1142,8 +1140,7 @@ int ecryptfs_parse_packet_set(struct ecryptfs_crypt_stat *crypt_stat, goto out_wipe_list; } i += packet_size; - ECRYPTFS_SET_FLAG(crypt_stat->flags, - ECRYPTFS_ENCRYPTED); + crypt_stat->flags |= ECRYPTFS_ENCRYPTED; break; case ECRYPTFS_TAG_11_PACKET_TYPE: ecryptfs_printk(KERN_WARNING, "Invalid packet set " @@ -1209,8 +1206,7 @@ int ecryptfs_parse_packet_set(struct ecryptfs_crypt_stat *crypt_stat, } leave_list: rc = -ENOTSUPP; - if ((ECRYPTFS_CHECK_FLAG(candidate_auth_tok->flags, - ECRYPTFS_PRIVATE_KEY))) { + if (candidate_auth_tok->token_type == ECRYPTFS_PRIVATE_KEY) { memcpy(&(candidate_auth_tok->token.private_key), &(chosen_auth_tok->token.private_key), sizeof(struct ecryptfs_private_key)); |