diff options
Diffstat (limited to 'security/integrity/ima/ima_template_lib.c')
| -rw-r--r-- | security/integrity/ima/ima_template_lib.c | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/security/integrity/ima/ima_template_lib.c b/security/integrity/ima/ima_template_lib.c index 7d841448f246..6d66ad6ed265 100644 --- a/security/integrity/ima/ima_template_lib.c +++ b/security/integrity/ima/ima_template_lib.c @@ -28,7 +28,8 @@ enum data_formats { DATA_FMT_DIGEST = 0, DATA_FMT_DIGEST_WITH_ALGO, DATA_FMT_EVENT_NAME, - DATA_FMT_STRING + DATA_FMT_STRING, + DATA_FMT_HEX }; static int ima_write_template_field_data(const void *data, const u32 datalen, @@ -90,6 +91,9 @@ static void ima_show_template_data_ascii(struct seq_file *m, buf_ptr += 2; buflen -= buf_ptr - field_data->data; case DATA_FMT_DIGEST: + case DATA_FMT_HEX: + if (!buflen) + break; ima_print_digest(m, buf_ptr, buflen); break; case DATA_FMT_STRING: @@ -147,6 +151,12 @@ void ima_show_template_string(struct seq_file *m, enum ima_show_type show, ima_show_template_field_data(m, show, DATA_FMT_STRING, field_data); } +void ima_show_template_sig(struct seq_file *m, enum ima_show_type show, + struct ima_field_data *field_data) +{ + ima_show_template_field_data(m, show, DATA_FMT_HEX, field_data); +} + static int ima_eventdigest_init_common(u8 *digest, u32 digestsize, u8 hash_algo, struct ima_field_data *field_data, bool size_limit) @@ -190,6 +200,7 @@ static int ima_eventdigest_init_common(u8 *digest, u32 digestsize, u8 hash_algo, */ 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, struct ima_field_data *field_data) { struct { @@ -237,7 +248,8 @@ out: */ int ima_eventdigest_ng_init(struct integrity_iint_cache *iint, struct file *file, const unsigned char *filename, - struct ima_field_data *field_data) + struct evm_ima_xattr_data *xattr_value, + int xattr_len, struct ima_field_data *field_data) { u8 *cur_digest = NULL, hash_algo = HASH_ALGO__LAST; u32 cur_digestsize = 0; @@ -295,6 +307,7 @@ out: */ 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, struct ima_field_data *field_data) { return ima_eventname_init_common(iint, file, filename, @@ -306,8 +319,29 @@ int ima_eventname_init(struct integrity_iint_cache *iint, struct file *file, */ 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, struct ima_field_data *field_data) { return ima_eventname_init_common(iint, file, filename, 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, + struct ima_field_data *field_data) +{ + enum data_formats fmt = DATA_FMT_HEX; + int rc = 0; + + if ((!xattr_value) || (xattr_value->type != EVM_IMA_XATTR_DIGSIG)) + goto out; + + rc = ima_write_template_field_data(xattr_value, xattr_len, fmt, + field_data); +out: + return rc; +} |