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eCryptfs: kerneldoc fixes for crypto.c and keystore.c

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Andrew Morton wrote:
From: mhalcrow@us.ibm.com <mhalcrow@halcrow.austin.ibm.com>
> > +/**
> > + * decrypt_passphrase_encrypted_session_key - Decrypt the session key
> > + * with the given auth_tok.
> >   *
> >   * Returns Zero on success; non-zero error otherwise.
> >   */
>
> That comment purports to be a kerneldoc-style comment.  But
>
> - kerneldoc doesn't support multiple lines on the introductory line
>   which identifies the name of the function (alas).  So you'll need to
>   overflow 80 cols here.
>
> - the function args weren't documented
>
> But the return value is!  People regularly forget to do that.  And
> they frequently forget to document the locking prerequisites and the
> permissible calling contexts (process/might_sleep/hardirq, etc)
>
> (please check all ecryptfs kerneldoc for this stuff sometime)

This patch cleans up some of the existing comments and makes a couple
of line break tweaks. There is more work to do to bring eCryptfs into
full kerneldoc-compliance.

Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Michael Halcrow
2007-10-16 01:28:02 -07:00
committed by Linus Torvalds
parent 6c6f57f3be
commit 22e78fafbd
2 changed files with 79 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
fs/ecryptfs/keystore.c
View File

@ -71,7 +71,7 @@ int process_request_key_err(long err_code)
* address; zero on error
* @length_size: The number of bytes occupied by the encoded length
*
* Returns Zero on success
* Returns zero on success; non-zero on error
*/
static int parse_packet_length(unsigned char *data, size_t *size,
size_t *length_size)
@ -106,11 +106,11 @@ out:
/**
* write_packet_length
* @dest: The byte array target into which to write the
* length. Must have at least 5 bytes allocated.
* @dest: The byte array target into which to write the length. Must
* have at least 5 bytes allocated.
* @size: The length to write.
* @packet_size_length: The number of bytes used to encode the
* packet length is written to this address.
* @packet_size_length: The number of bytes used to encode the packet
* length is written to this address.
*
* Returns zero on success; non-zero on error.
*/
@ -397,10 +397,11 @@ out:
}
/**
* decrypt_pki_encrypted_session_key - Decrypt the session key with
* the given auth_tok.
* decrypt_pki_encrypted_session_key - Decrypt the session key with the given auth_tok.
* @auth_tok: The key authentication token used to decrypt the session key
* @crypt_stat: The cryptographic context
*
* Returns Zero on success; non-zero error otherwise.
* Returns zero on success; non-zero error otherwise.
*/
static int
decrypt_pki_encrypted_session_key(struct ecryptfs_auth_tok *auth_tok,
@ -484,18 +485,18 @@ struct kmem_cache *ecryptfs_auth_tok_list_item_cache;
/**
* parse_tag_1_packet
* @crypt_stat: The cryptographic context to modify based on packet
* contents.
* @crypt_stat: The cryptographic context to modify based on packet contents
* @data: The raw bytes of the packet.
* @auth_tok_list: eCryptfs parses packets into authentication tokens;
* a new authentication token will be placed at the end
* of this list for this packet.
* a new authentication token will be placed at the
* end of this list for this packet.
* @new_auth_tok: Pointer to a pointer to memory that this function
* allocates; sets the memory address of the pointer to
* NULL on error. This object is added to the
* auth_tok_list.
* @packet_size: This function writes the size of the parsed packet
* into this memory location; zero on error.
* @max_packet_size: The maximum allowable packet size
*
* Returns zero on success; non-zero on error.
*/
@ -996,10 +997,11 @@ ecryptfs_find_auth_tok_for_sig(
}
/**
* decrypt_passphrase_encrypted_session_key - Decrypt the session key
* with the given auth_tok.
* decrypt_passphrase_encrypted_session_key - Decrypt the session key with the given auth_tok.
* @auth_tok: The passphrase authentication token to use to encrypt the FEK
* @crypt_stat: The cryptographic context
*
* Returns Zero on success; non-zero error otherwise.
* Returns zero on success; non-zero error otherwise
*/
static int
decrypt_passphrase_encrypted_session_key(struct ecryptfs_auth_tok *auth_tok,
@ -1102,8 +1104,9 @@ int ecryptfs_get_auth_tok_sig(char **sig, struct ecryptfs_auth_tok *auth_tok)
/**
* ecryptfs_parse_packet_set
* @dest: The header page in memory
* @version: Version of file format, to guide parsing behavior
* @crypt_stat: The cryptographic context
* @src: Virtual address of region of memory containing the packets
* @ecryptfs_dentry: The eCryptfs dentry associated with the packet set
*
* Get crypt_stat to have the file's session key if the requisite key
* is available to decrypt the session key.
@ -1354,7 +1357,10 @@ out:
/**
* write_tag_1_packet - Write an RFC2440-compatible tag 1 (public key) packet
* @dest: Buffer into which to write the packet
* @max: Maximum number of bytes that can be writtn
* @remaining_bytes: Maximum number of bytes that can be writtn
* @auth_tok: The authentication token used for generating the tag 1 packet
* @crypt_stat: The cryptographic context
* @key_rec: The key record struct for the tag 1 packet
* @packet_size: This function will write the number of bytes that end
* up constituting the packet; set to zero on error
*
@ -1441,7 +1447,7 @@ out:
/**
* write_tag_11_packet
* @dest: Target into which Tag 11 packet is to be written
* @max: Maximum packet length
* @remaining_bytes: Maximum packet length
* @contents: Byte array of contents to copy in
* @contents_length: Number of bytes in contents
* @packet_length: Length of the Tag 11 packet written; zero on error
@ -1501,7 +1507,7 @@ write_tag_11_packet(char *dest, size_t *remaining_bytes, char *contents,
/**
* write_tag_3_packet
* @dest: Buffer into which to write the packet
* @max: Maximum number of bytes that can be written
* @remaining_bytes: Maximum number of bytes that can be written
* @auth_tok: Authentication token
* @crypt_stat: The cryptographic context
* @key_rec: encrypted key
@ -1707,7 +1713,7 @@ struct kmem_cache *ecryptfs_key_record_cache;
/**
* ecryptfs_generate_key_packet_set
* @dest: Virtual address from which to write the key record set
* @dest_base: Virtual address from which to write the key record set
* @crypt_stat: The cryptographic context from which the
* authentication tokens will be retrieved
* @ecryptfs_dentry: The dentry, used to retrieve the mount crypt stat