diff options
Diffstat (limited to 'security/integrity/ima/ima_template_lib.c')
-rw-r--r-- | security/integrity/ima/ima_template_lib.c | 74 |
1 files changed, 31 insertions, 43 deletions
diff --git a/security/integrity/ima/ima_template_lib.c b/security/integrity/ima/ima_template_lib.c index bcfc36cbde6a..2934e3d377f1 100644 --- a/security/integrity/ima/ima_template_lib.c +++ b/security/integrity/ima/ima_template_lib.c @@ -70,7 +70,8 @@ static void ima_show_template_data_ascii(struct seq_file *m, enum data_formats datafmt, struct ima_field_data *field_data) { - u8 *buf_ptr = field_data->data, buflen = field_data->len; + u8 *buf_ptr = field_data->data; + u32 buflen = field_data->len; switch (datafmt) { case DATA_FMT_DIGEST_WITH_ALGO: @@ -195,9 +196,7 @@ static int ima_eventdigest_init_common(u8 *digest, u32 digestsize, u8 hash_algo, /* * This function writes the digest of an event (with size limit). */ -int ima_eventdigest_init(struct integrity_iint_cache *iint, struct file *file, - const unsigned char *filename, - struct evm_ima_xattr_data *xattr_value, int xattr_len, +int ima_eventdigest_init(struct ima_event_data *event_data, struct ima_field_data *field_data) { struct { @@ -211,25 +210,25 @@ int ima_eventdigest_init(struct integrity_iint_cache *iint, struct file *file, memset(&hash, 0, sizeof(hash)); - if (!iint) /* recording a violation. */ + if (event_data->violation) /* recording a violation. */ goto out; - if (ima_template_hash_algo_allowed(iint->ima_hash->algo)) { - cur_digest = iint->ima_hash->digest; - cur_digestsize = iint->ima_hash->length; + if (ima_template_hash_algo_allowed(event_data->iint->ima_hash->algo)) { + cur_digest = event_data->iint->ima_hash->digest; + cur_digestsize = event_data->iint->ima_hash->length; goto out; } - if (!file) /* missing info to re-calculate the digest */ + if (!event_data->file) /* missing info to re-calculate the digest */ return -EINVAL; - inode = file_inode(file); + inode = file_inode(event_data->file); hash.hdr.algo = ima_template_hash_algo_allowed(ima_hash_algo) ? ima_hash_algo : HASH_ALGO_SHA1; - result = ima_calc_file_hash(file, &hash.hdr); + result = ima_calc_file_hash(event_data->file, &hash.hdr); if (result) { integrity_audit_msg(AUDIT_INTEGRITY_DATA, inode, - filename, "collect_data", + event_data->filename, "collect_data", "failed", result, 0); return result; } @@ -243,48 +242,43 @@ out: /* * This function writes the digest of an event (without size limit). */ -int ima_eventdigest_ng_init(struct integrity_iint_cache *iint, - struct file *file, const unsigned char *filename, - struct evm_ima_xattr_data *xattr_value, - int xattr_len, struct ima_field_data *field_data) +int ima_eventdigest_ng_init(struct ima_event_data *event_data, + struct ima_field_data *field_data) { u8 *cur_digest = NULL, hash_algo = HASH_ALGO_SHA1; u32 cur_digestsize = 0; - /* If iint is NULL, we are recording a violation. */ - if (!iint) + if (event_data->violation) /* recording a violation. */ goto out; - cur_digest = iint->ima_hash->digest; - cur_digestsize = iint->ima_hash->length; + cur_digest = event_data->iint->ima_hash->digest; + cur_digestsize = event_data->iint->ima_hash->length; - hash_algo = iint->ima_hash->algo; + hash_algo = event_data->iint->ima_hash->algo; out: return ima_eventdigest_init_common(cur_digest, cur_digestsize, hash_algo, field_data); } -static int ima_eventname_init_common(struct integrity_iint_cache *iint, - struct file *file, - const unsigned char *filename, +static int ima_eventname_init_common(struct ima_event_data *event_data, struct ima_field_data *field_data, bool size_limit) { const char *cur_filename = NULL; u32 cur_filename_len = 0; - BUG_ON(filename == NULL && file == NULL); + BUG_ON(event_data->filename == NULL && event_data->file == NULL); - if (filename) { - cur_filename = filename; - cur_filename_len = strlen(filename); + if (event_data->filename) { + cur_filename = event_data->filename; + cur_filename_len = strlen(event_data->filename); if (!size_limit || cur_filename_len <= IMA_EVENT_NAME_LEN_MAX) goto out; } - if (file) { - cur_filename = file->f_path.dentry->d_name.name; + if (event_data->file) { + cur_filename = event_data->file->f_path.dentry->d_name.name; cur_filename_len = strlen(cur_filename); } else /* @@ -300,36 +294,30 @@ out: /* * This function writes the name of an event (with size limit). */ -int ima_eventname_init(struct integrity_iint_cache *iint, struct file *file, - const unsigned char *filename, - struct evm_ima_xattr_data *xattr_value, int xattr_len, +int ima_eventname_init(struct ima_event_data *event_data, struct ima_field_data *field_data) { - return ima_eventname_init_common(iint, file, filename, - field_data, true); + return ima_eventname_init_common(event_data, field_data, true); } /* * This function writes the name of an event (without size limit). */ -int ima_eventname_ng_init(struct integrity_iint_cache *iint, struct file *file, - const unsigned char *filename, - struct evm_ima_xattr_data *xattr_value, int xattr_len, +int ima_eventname_ng_init(struct ima_event_data *event_data, struct ima_field_data *field_data) { - return ima_eventname_init_common(iint, file, filename, - field_data, false); + return ima_eventname_init_common(event_data, field_data, false); } /* * ima_eventsig_init - include the file signature as part of the template data */ -int ima_eventsig_init(struct integrity_iint_cache *iint, struct file *file, - const unsigned char *filename, - struct evm_ima_xattr_data *xattr_value, int xattr_len, +int ima_eventsig_init(struct ima_event_data *event_data, struct ima_field_data *field_data) { enum data_formats fmt = DATA_FMT_HEX; + struct evm_ima_xattr_data *xattr_value = event_data->xattr_value; + int xattr_len = event_data->xattr_len; int rc = 0; if ((!xattr_value) || (xattr_value->type != EVM_IMA_XATTR_DIGSIG)) |