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Diffstat (limited to 'fs/nfsd/nfs4acl.c')
-rw-r--r--fs/nfsd/nfs4acl.c63
1 files changed, 46 insertions, 17 deletions
diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c
index 9c51aff02ae2..8a50b3c18093 100644
--- a/fs/nfsd/nfs4acl.c
+++ b/fs/nfsd/nfs4acl.c
@@ -264,7 +264,7 @@ _posix_to_nfsv4_one(struct posix_acl *pacl, struct nfs4_acl *acl,
ace->flag = eflag;
ace->access_mask = deny_mask_from_posix(deny, flags);
ace->whotype = NFS4_ACL_WHO_NAMED;
- ace->who = pa->e_id;
+ ace->who_uid = pa->e_uid;
ace++;
acl->naces++;
}
@@ -273,7 +273,7 @@ _posix_to_nfsv4_one(struct posix_acl *pacl, struct nfs4_acl *acl,
ace->access_mask = mask_from_posix(pa->e_perm & pas.mask,
flags);
ace->whotype = NFS4_ACL_WHO_NAMED;
- ace->who = pa->e_id;
+ ace->who_uid = pa->e_uid;
ace++;
acl->naces++;
pa++;
@@ -300,7 +300,7 @@ _posix_to_nfsv4_one(struct posix_acl *pacl, struct nfs4_acl *acl,
ace->access_mask = mask_from_posix(pa->e_perm & pas.mask,
flags);
ace->whotype = NFS4_ACL_WHO_NAMED;
- ace->who = pa->e_id;
+ ace->who_gid = pa->e_gid;
ace++;
acl->naces++;
pa++;
@@ -329,7 +329,7 @@ _posix_to_nfsv4_one(struct posix_acl *pacl, struct nfs4_acl *acl,
ace->flag = eflag | NFS4_ACE_IDENTIFIER_GROUP;
ace->access_mask = deny_mask_from_posix(deny, flags);
ace->whotype = NFS4_ACL_WHO_NAMED;
- ace->who = pa->e_id;
+ ace->who_gid = pa->e_gid;
ace++;
acl->naces++;
}
@@ -345,6 +345,18 @@ _posix_to_nfsv4_one(struct posix_acl *pacl, struct nfs4_acl *acl,
acl->naces++;
}
+static bool
+pace_gt(struct posix_acl_entry *pace1, struct posix_acl_entry *pace2)
+{
+ if (pace1->e_tag != pace2->e_tag)
+ return pace1->e_tag > pace2->e_tag;
+ if (pace1->e_tag == ACL_USER)
+ return uid_gt(pace1->e_uid, pace2->e_uid);
+ if (pace1->e_tag == ACL_GROUP)
+ return gid_gt(pace1->e_gid, pace2->e_gid);
+ return false;
+}
+
static void
sort_pacl_range(struct posix_acl *pacl, int start, int end) {
int sorted = 0, i;
@@ -355,8 +367,8 @@ sort_pacl_range(struct posix_acl *pacl, int start, int end) {
while (!sorted) {
sorted = 1;
for (i = start; i < end; i++) {
- if (pacl->a_entries[i].e_id
- > pacl->a_entries[i+1].e_id) {
+ if (pace_gt(&pacl->a_entries[i],
+ &pacl->a_entries[i+1])) {
sorted = 0;
tmp = pacl->a_entries[i];
pacl->a_entries[i] = pacl->a_entries[i+1];
@@ -398,7 +410,10 @@ struct posix_ace_state {
};
struct posix_user_ace_state {
- uid_t uid;
+ union {
+ kuid_t uid;
+ kgid_t gid;
+ };
struct posix_ace_state perms;
};
@@ -521,7 +536,6 @@ posix_state_to_acl(struct posix_acl_state *state, unsigned int flags)
if (error)
goto out_err;
low_mode_from_nfs4(state->owner.allow, &pace->e_perm, flags);
- pace->e_id = ACL_UNDEFINED_ID;
for (i=0; i < state->users->n; i++) {
pace++;
@@ -531,7 +545,7 @@ posix_state_to_acl(struct posix_acl_state *state, unsigned int flags)
goto out_err;
low_mode_from_nfs4(state->users->aces[i].perms.allow,
&pace->e_perm, flags);
- pace->e_id = state->users->aces[i].uid;
+ pace->e_uid = state->users->aces[i].uid;
add_to_mask(state, &state->users->aces[i].perms);
}
@@ -541,7 +555,6 @@ posix_state_to_acl(struct posix_acl_state *state, unsigned int flags)
if (error)
goto out_err;
low_mode_from_nfs4(state->group.allow, &pace->e_perm, flags);
- pace->e_id = ACL_UNDEFINED_ID;
add_to_mask(state, &state->group);
for (i=0; i < state->groups->n; i++) {
@@ -552,14 +565,13 @@ posix_state_to_acl(struct posix_acl_state *state, unsigned int flags)
goto out_err;
low_mode_from_nfs4(state->groups->aces[i].perms.allow,
&pace->e_perm, flags);
- pace->e_id = state->groups->aces[i].uid;
+ pace->e_gid = state->groups->aces[i].gid;
add_to_mask(state, &state->groups->aces[i].perms);
}
pace++;
pace->e_tag = ACL_MASK;
low_mode_from_nfs4(state->mask.allow, &pace->e_perm, flags);
- pace->e_id = ACL_UNDEFINED_ID;
pace++;
pace->e_tag = ACL_OTHER;
@@ -567,7 +579,6 @@ posix_state_to_acl(struct posix_acl_state *state, unsigned int flags)
if (error)
goto out_err;
low_mode_from_nfs4(state->other.allow, &pace->e_perm, flags);
- pace->e_id = ACL_UNDEFINED_ID;
return pacl;
out_err:
@@ -587,12 +598,13 @@ static inline void deny_bits(struct posix_ace_state *astate, u32 mask)
astate->deny |= mask & ~astate->allow;
}
-static int find_uid(struct posix_acl_state *state, struct posix_ace_state_array *a, uid_t uid)
+static int find_uid(struct posix_acl_state *state, kuid_t uid)
{
+ struct posix_ace_state_array *a = state->users;
int i;
for (i = 0; i < a->n; i++)
- if (a->aces[i].uid == uid)
+ if (uid_eq(a->aces[i].uid, uid))
return i;
/* Not found: */
a->n++;
@@ -603,6 +615,23 @@ static int find_uid(struct posix_acl_state *state, struct posix_ace_state_array
return i;
}
+static int find_gid(struct posix_acl_state *state, kgid_t gid)
+{
+ struct posix_ace_state_array *a = state->groups;
+ int i;
+
+ for (i = 0; i < a->n; i++)
+ if (gid_eq(a->aces[i].gid, gid))
+ return i;
+ /* Not found: */
+ a->n++;
+ a->aces[i].gid = gid;
+ a->aces[i].perms.allow = state->everyone.allow;
+ a->aces[i].perms.deny = state->everyone.deny;
+
+ return i;
+}
+
static void deny_bits_array(struct posix_ace_state_array *a, u32 mask)
{
int i;
@@ -636,7 +665,7 @@ static void process_one_v4_ace(struct posix_acl_state *state,
}
break;
case ACL_USER:
- i = find_uid(state, state->users, ace->who);
+ i = find_uid(state, ace->who_uid);
if (ace->type == NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE) {
allow_bits(&state->users->aces[i].perms, mask);
} else {
@@ -658,7 +687,7 @@ static void process_one_v4_ace(struct posix_acl_state *state,
}
break;
case ACL_GROUP:
- i = find_uid(state, state->groups, ace->who);
+ i = find_gid(state, ace->who_gid);
if (ace->type == NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE) {
allow_bits(&state->groups->aces[i].perms, mask);
} else {
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