forked from luck/tmp_suning_uos_patched
apparmor: switch from file_perms to aa_perms
Signed-off-by: John Johansen <john.johansen@canonical.com>
This commit is contained in:
John Johansen
parent
aa9aeea8d4
commit
2d679f3cb0
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@ -93,12 +93,12 @@ static int may_change_ptraced_domain(struct aa_profile *to_profile)
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*
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* Returns: permission set
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*/
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static struct file_perms change_profile_perms(struct aa_profile *profile,
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struct aa_ns *ns,
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const char *name, u32 request,
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unsigned int start)
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static struct aa_perms change_profile_perms(struct aa_profile *profile,
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struct aa_ns *ns,
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const char *name, u32 request,
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unsigned int start)
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{
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struct file_perms perms;
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struct aa_perms perms;
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struct path_cond cond = { };
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unsigned int state;
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@ -342,7 +342,7 @@ int apparmor_bprm_set_creds(struct linux_binprm *bprm)
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struct aa_ns *ns;
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char *buffer = NULL;
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unsigned int state;
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struct file_perms perms = {};
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struct aa_perms perms = {};
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struct path_cond cond = {
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file_inode(bprm->file)->i_uid,
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file_inode(bprm->file)->i_mode
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@ -400,7 +400,7 @@ int apparmor_bprm_set_creds(struct linux_binprm *bprm)
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/* find exec permissions for name */
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state = aa_str_perms(profile->file.dfa, state, name, &cond, &perms);
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if (ctx->onexec) {
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struct file_perms cp;
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struct aa_perms cp;
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info = "change_profile onexec";
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new_profile = aa_get_newest_profile(ctx->onexec);
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if (!(perms.allow & AA_MAY_ONEXEC))
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@ -609,7 +609,7 @@ int aa_change_hat(const char *hats[], int count, u64 token, bool permtest)
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struct aa_profile *profile, *previous_profile, *hat = NULL;
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char *name = NULL;
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int i;
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struct file_perms perms = {};
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struct aa_perms perms = {};
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const char *target = NULL, *info = NULL;
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int error = 0;
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@ -748,7 +748,7 @@ int aa_change_profile(const char *fqname, bool onexec,
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{
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const struct cred *cred;
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struct aa_profile *profile, *target = NULL;
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struct file_perms perms = {};
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struct aa_perms perms = {};
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const char *info = NULL, *op;
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int error = 0;
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u32 request;
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@ -19,8 +19,6 @@
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#include "include/path.h"
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#include "include/policy.h"
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struct file_perms nullperms;
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static u32 map_mask_to_chr_mask(u32 mask)
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{
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u32 m = mask & PERMS_CHRS_MASK;
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@ -92,7 +90,7 @@ static void file_audit_cb(struct audit_buffer *ab, void *va)
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*
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* Returns: %0 or error on failure
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*/
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int aa_audit_file(struct aa_profile *profile, struct file_perms *perms,
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int aa_audit_file(struct aa_profile *profile, struct aa_perms *perms,
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const char *op, u32 request, const char *name,
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const char *target, kuid_t ouid, const char *info, int error)
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{
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@ -170,7 +168,7 @@ static u32 map_old_perms(u32 old)
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}
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/**
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* compute_perms - convert dfa compressed perms to internal perms
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* aa_compute_fperms - convert dfa compressed perms to internal perms
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* @dfa: dfa to compute perms for (NOT NULL)
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* @state: state in dfa
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* @cond: conditions to consider (NOT NULL)
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@ -180,17 +178,21 @@ static u32 map_old_perms(u32 old)
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*
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* Returns: computed permission set
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*/
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static struct file_perms compute_perms(struct aa_dfa *dfa, unsigned int state,
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struct path_cond *cond)
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struct aa_perms aa_compute_fperms(struct aa_dfa *dfa, unsigned int state,
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struct path_cond *cond)
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{
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struct file_perms perms;
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struct aa_perms perms;
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/* FIXME: change over to new dfa format
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* currently file perms are encoded in the dfa, new format
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* splits the permissions from the dfa. This mapping can be
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* done at profile load
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*/
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perms.kill = 0;
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perms.deny = 0;
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perms.kill = perms.stop = 0;
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perms.complain = perms.cond = 0;
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perms.hide = 0;
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perms.prompt = 0;
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if (uid_eq(current_fsuid(), cond->uid)) {
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perms.allow = map_old_perms(dfa_user_allow(dfa, state));
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@ -226,16 +228,11 @@ static struct file_perms compute_perms(struct aa_dfa *dfa, unsigned int state,
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*/
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unsigned int aa_str_perms(struct aa_dfa *dfa, unsigned int start,
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const char *name, struct path_cond *cond,
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struct file_perms *perms)
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struct aa_perms *perms)
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{
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unsigned int state;
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if (!dfa) {
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*perms = nullperms;
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return DFA_NOMATCH;
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}
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state = aa_dfa_match(dfa, start, name);
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*perms = compute_perms(dfa, state, cond);
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*perms = aa_compute_fperms(dfa, state, cond);
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return state;
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}
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@ -269,7 +266,7 @@ int aa_path_perm(const char *op, struct aa_profile *profile,
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struct path_cond *cond)
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{
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char *buffer = NULL;
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struct file_perms perms = {};
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struct aa_perms perms = {};
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const char *name, *info = NULL;
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int error;
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@ -348,7 +345,7 @@ int aa_path_link(struct aa_profile *profile, struct dentry *old_dentry,
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};
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char *buffer = NULL, *buffer2 = NULL;
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const char *lname, *tname = NULL, *info = NULL;
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struct file_perms lperms, perms;
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struct aa_perms lperms, perms;
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u32 request = AA_MAY_LINK;
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unsigned int state;
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int error;
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@ -90,25 +90,6 @@ struct path_cond {
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umode_t mode;
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};
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/* struct file_perms - file permission
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* @allow: mask of permissions that are allowed
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* @audit: mask of permissions to force an audit message for
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* @quiet: mask of permissions to quiet audit messages for
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* @kill: mask of permissions that when matched will kill the task
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* @xindex: exec transition index if @allow contains MAY_EXEC
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*
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* The @audit and @queit mask should be mutually exclusive.
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*/
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struct file_perms {
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u32 allow;
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u32 audit;
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u32 quiet;
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u32 kill;
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u16 xindex;
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};
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extern struct file_perms nullperms;
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#define COMBINED_PERM_MASK(X) ((X).allow | (X).audit | (X).quiet | (X).kill)
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/* FIXME: split perms from dfa and match this to description
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@ -159,7 +140,7 @@ static inline u16 dfa_map_xindex(u16 mask)
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#define dfa_other_xindex(dfa, state) \
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dfa_map_xindex((ACCEPT_TABLE(dfa)[state] >> 14) & 0x3fff)
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int aa_audit_file(struct aa_profile *profile, struct file_perms *perms,
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int aa_audit_file(struct aa_profile *profile, struct aa_perms *perms,
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const char *op, u32 request, const char *name,
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const char *target, kuid_t ouid, const char *info, int error);
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@ -182,9 +163,11 @@ struct aa_file_rules {
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/* TODO: add delegate table */
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};
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struct aa_perms aa_compute_fperms(struct aa_dfa *dfa, unsigned int state,
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struct path_cond *cond);
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unsigned int aa_str_perms(struct aa_dfa *dfa, unsigned int start,
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const char *name, struct path_cond *cond,
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struct file_perms *perms);
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struct aa_perms *perms);
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int aa_path_perm(const char *op, struct aa_profile *profile,
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const struct path *path, int flags, u32 request,
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@ -88,7 +88,7 @@ struct aa_perms {
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};
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#define ALL_PERMS_MASK 0xffffffff
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extern struct aa_perms nullperms;
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extern struct aa_perms allperms;
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struct aa_profile;
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@ -24,6 +24,7 @@
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#include "include/perms.h"
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#include "include/policy.h"
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struct aa_perms nullperms;
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struct aa_perms allperms = { .allow = ALL_PERMS_MASK,
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.quiet = ALL_PERMS_MASK,
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.hide = ALL_PERMS_MASK };
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