| Message ID | 20230904133415.1799503-4-roberto.sassu@huaweicloud.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | security: Move IMA and EVM to the LSM infrastructure | expand |
On 9/4/23 09:33, Roberto Sassu wrote: > From: Roberto Sassu <roberto.sassu@huawei.com> > > Change ima_post_create_tmpfile() definition, so that it can be registered > as implementation of the post_create_tmpfile hook. > > Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com> > --- > fs/namei.c | 2 +- > include/linux/ima.h | 7 +++++-- > security/integrity/ima/ima_main.c | 8 ++++++-- > 3 files changed, 12 insertions(+), 5 deletions(-) > > diff --git a/fs/namei.c b/fs/namei.c > index c5e96f716f98..1f5ec71360de 100644 > --- a/fs/namei.c > +++ b/fs/namei.c > @@ -3698,7 +3698,7 @@ static int vfs_tmpfile(struct mnt_idmap *idmap, > inode->i_state |= I_LINKABLE; > spin_unlock(&inode->i_lock); > } > - ima_post_create_tmpfile(idmap, inode); > + ima_post_create_tmpfile(idmap, dir, file, mode); > return 0; > } > > diff --git a/include/linux/ima.h b/include/linux/ima.h > index 179ce52013b2..893c3b98b4d0 100644 > --- a/include/linux/ima.h > +++ b/include/linux/ima.h > @@ -19,7 +19,8 @@ extern enum hash_algo ima_get_current_hash_algo(void); > extern int ima_bprm_check(struct linux_binprm *bprm); > extern int ima_file_check(struct file *file, int mask); > extern void ima_post_create_tmpfile(struct mnt_idmap *idmap, > - struct inode *inode); > + struct inode *dir, struct file *file, > + umode_t mode); > extern void ima_file_free(struct file *file); > extern int ima_file_mmap(struct file *file, unsigned long reqprot, > unsigned long prot, unsigned long flags); > @@ -69,7 +70,9 @@ static inline int ima_file_check(struct file *file, int mask) > } > > static inline void ima_post_create_tmpfile(struct mnt_idmap *idmap, > - struct inode *inode) > + struct inode *dir, > + struct file *file, > + umode_t mode) > { > } > > diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c > index 76eba92d7f10..52e742d32f4b 100644 > --- a/security/integrity/ima/ima_main.c > +++ b/security/integrity/ima/ima_main.c > @@ -663,16 +663,20 @@ EXPORT_SYMBOL_GPL(ima_inode_hash); > /** > * ima_post_create_tmpfile - mark newly created tmpfile as new > * @idmap: idmap of the mount the inode was found from > - * @inode: inode of the newly created tmpfile > + * @dir: inode structure of the parent of the new file > + * @file: file descriptor of the new file > + * @mode: mode of the new file > * > * No measuring, appraising or auditing of newly created tmpfiles is needed. > * Skip calling process_measurement(), but indicate which newly, created > * tmpfiles are in policy. > */ > void ima_post_create_tmpfile(struct mnt_idmap *idmap, > - struct inode *inode) > + struct inode *dir, struct file *file, > + umode_t mode) > { > struct integrity_iint_cache *iint; > + struct inode *inode = file_inode(file); > int must_appraise; > > if (!ima_policy_flag || !S_ISREG(inode->i_mode)) Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
diff --git a/fs/namei.c b/fs/namei.c index c5e96f716f98..1f5ec71360de 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -3698,7 +3698,7 @@ static int vfs_tmpfile(struct mnt_idmap *idmap, inode->i_state |= I_LINKABLE; spin_unlock(&inode->i_lock); } - ima_post_create_tmpfile(idmap, inode); + ima_post_create_tmpfile(idmap, dir, file, mode); return 0; } diff --git a/include/linux/ima.h b/include/linux/ima.h index 179ce52013b2..893c3b98b4d0 100644 --- a/include/linux/ima.h +++ b/include/linux/ima.h @@ -19,7 +19,8 @@ extern enum hash_algo ima_get_current_hash_algo(void); extern int ima_bprm_check(struct linux_binprm *bprm); extern int ima_file_check(struct file *file, int mask); extern void ima_post_create_tmpfile(struct mnt_idmap *idmap, - struct inode *inode); + struct inode *dir, struct file *file, + umode_t mode); extern void ima_file_free(struct file *file); extern int ima_file_mmap(struct file *file, unsigned long reqprot, unsigned long prot, unsigned long flags); @@ -69,7 +70,9 @@ static inline int ima_file_check(struct file *file, int mask) } static inline void ima_post_create_tmpfile(struct mnt_idmap *idmap, - struct inode *inode) + struct inode *dir, + struct file *file, + umode_t mode) { } diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c index 76eba92d7f10..52e742d32f4b 100644 --- a/security/integrity/ima/ima_main.c +++ b/security/integrity/ima/ima_main.c @@ -663,16 +663,20 @@ EXPORT_SYMBOL_GPL(ima_inode_hash); /** * ima_post_create_tmpfile - mark newly created tmpfile as new * @idmap: idmap of the mount the inode was found from - * @inode: inode of the newly created tmpfile + * @dir: inode structure of the parent of the new file + * @file: file descriptor of the new file + * @mode: mode of the new file * * No measuring, appraising or auditing of newly created tmpfiles is needed. * Skip calling process_measurement(), but indicate which newly, created * tmpfiles are in policy. */ void ima_post_create_tmpfile(struct mnt_idmap *idmap, - struct inode *inode) + struct inode *dir, struct file *file, + umode_t mode) { struct integrity_iint_cache *iint; + struct inode *inode = file_inode(file); int must_appraise; if (!ima_policy_flag || !S_ISREG(inode->i_mode))