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SubjectRe: [AppArmor #6 0/13] AppArmor security module
From
Date
John Johansen wrote:
> With this submission we believe AppArmor is ready for inclusion into
> the kernel.
If nobody has objection, I think it is time to add AppArmor for Linux 2.6.36.



LXR as of 9788eb59 "AppArmor: Remove delegate information from permission struct"
is at http://tomoyo.sourceforge.jp/cgi-bin/lxr/source/?v=apparmor-dev .

Comments listed below. All trivial.



Regarding apparmorfs.c

142 static struct dentry *aa_fs_dentry;

You can add "__initdata".

static void aafs_remove(const char *name)

You can add "__init".

163 static int aafs_create(const char *name, int mask,
164 const struct file_operations *fops)

You can add "__init".

179 void aa_destroy_aafs(void)

You can add "__init".

198 int aa_create_aafs(void)

You can add "static" and "__init".



Regarding audit.c

179 int aa_audit(int type, struct aa_profile *profile, gfp_t gfp,
180 struct common_audit_data *sa,
181 void (*cb) (struct audit_buffer *, void *))
182 {
183 BUG_ON(!profile);
(...snipped...)
200 if (profile && KILL_MODE(profile) && type == AUDIT_APPARMOR_DENIED)
201 type = AUDIT_APPARMOR_KILL;
202
203 if (profile && !unconfined(profile))
204 sa->aad.profile = profile;

profile != NULL already chedked.



Regarding capability.c

59 * Returns: 0 or sa->error on succes, error code on failure

s/succes/success/



Regarding domain.c

201 * Either the profile or namespace name may be optional but if the namespace
202 * is specified the profile name termination must be present. This results
203 * in the following possible encodings:
204 * profile_name\0
205 * :ns_name\0profile_name\0
206 * :ns_name\0\0
207 *
208 * NOTE: the xtable fqname is prevalidated at load time in unpack_trans_table
209 *
210 * Returns: profile name if it is specified else NULL
211 */
212 static const char *separate_fqname(const char *fqname, const char **ns_name)
213 {
214 const char *name;
215
216 if (fqname[0] == ':') {
217 *ns_name = fqname + 1; /* skip : */

Maybe

BUG_ON(!*ns_name);

or something is wanted in case fqname by error received ':' + '\0' rather than
':' + '\0' + '\0'.

218 name = *ns_name + strlen(*ns_name) + 1;
219 if (!*name)
220 name = NULL;



Regarding lib.c

61 void aa_info_message(const char *str)
62 {
63 if (audit_enabled) {
64 struct common_audit_data sa;
65 COMMON_AUDIT_DATA_INIT(&sa, NONE);
66 sa.aad.info = str;
67 printk(KERN_INFO "AppArmor: %s\n", str);

You want to skip printk() if !audit_enabled?

68 aa_audit_msg(AUDIT_APPARMOR_STATUS, &sa, NULL);
69 }
70 }

81 void *kvmalloc(size_t size)
82 {
83 void *buffer = NULL;
84
85 if (size == 0)
86 return NULL;
87
88 /* do not attempt kmalloc if we need more than 16 pages at once */
89 if (size <= (16*PAGE_SIZE))
90 buffer = kmalloc(size, GFP_NOIO | __GFP_NOWARN);
91 if (!buffer) {

Please add "/* See kvfree() for reason to round up. */" or something.

92 if (size < sizeof(struct work_struct))
93 size = sizeof(struct work_struct);
94 buffer = vmalloc(size);



Regarding lsm.c

39 int apparmor_initialized;

You can add "__initdata".



Regarding policy_unpack.c

361 * Returns: 1 if table succesfully unpacked

s/succesfully/successfully/



Regarding include/apparmor.h

50 extern int apparmor_initialized;

You can add "__initdata".



Regarding include/apparmorfs.h

18 extern void aa_destroy_aafs(void);

You can add "__init".



Regarding include/policy.h

71 #define AA_NEW_SID 0

This symbol is not used.

254 * @profile: the profile to check for newer versions of (NOT NULL)
(...snipped...)
263 static inline struct aa_profile *aa_newest_version(struct aa_profile *profile)
264 {
265 if (unlikely(profile && profile->replacedby))
266 for (; profile->replacedby; profile = profile->replacedby)

Comment says profile != NULL. Maybe

static inline struct aa_profile *aa_newest_version(struct aa_profile *profile)
{
while (profile->replacedby)
profile = profile->replacedby;
}

?


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