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SubjectRe: [PATCH] More LSM changes for 2.5.49
ChangeSet 1.928, 2002/11/27 15:13:40-08:00, greg@kroah.com

LSM: change if statements into something more readable for the kernel.* files.


diff -Nru a/kernel/acct.c b/kernel/acct.c
--- a/kernel/acct.c Wed Nov 27 15:17:58 2002
+++ b/kernel/acct.c Wed Nov 27 15:17:58 2002
@@ -223,7 +223,8 @@
}
}

- if ((error = security_acct(file)))
+ error = security_acct(file);
+ if (error)
return error;

spin_lock(&acct_globals.lock);
diff -Nru a/kernel/fork.c b/kernel/fork.c
--- a/kernel/fork.c Wed Nov 27 15:17:58 2002
+++ b/kernel/fork.c Wed Nov 27 15:17:58 2002
@@ -717,7 +717,8 @@
if ((clone_flags & CLONE_DETACHED) && !(clone_flags & CLONE_THREAD))
return ERR_PTR(-EINVAL);

- if ((retval = security_task_create(clone_flags)))
+ retval = security_task_create(clone_flags);
+ if (retval)
goto fork_out;

retval = -ENOMEM;
diff -Nru a/kernel/ptrace.c b/kernel/ptrace.c
--- a/kernel/ptrace.c Wed Nov 27 15:17:58 2002
+++ b/kernel/ptrace.c Wed Nov 27 15:17:58 2002
@@ -101,7 +101,8 @@
/* the same process cannot be attached many times */
if (task->ptrace & PT_PTRACED)
goto bad;
- if ((retval = security_ptrace(current, task)))
+ retval = security_ptrace(current, task);
+ if (retval)
goto bad;

/* Go */
diff -Nru a/kernel/sched.c b/kernel/sched.c
--- a/kernel/sched.c Wed Nov 27 15:17:58 2002
+++ b/kernel/sched.c Wed Nov 27 15:17:58 2002
@@ -1348,7 +1348,8 @@
if (nice > 19)
nice = 19;

- if ((retval = security_task_setnice(current, nice)))
+ retval = security_task_setnice(current, nice);
+ if (retval)
return retval;

set_user_nice(current, nice);
@@ -1469,7 +1470,8 @@
!capable(CAP_SYS_NICE))
goto out_unlock;

- if ((retval = security_task_setscheduler(p, policy, &lp)))
+ retval = security_task_setscheduler(p, policy, &lp);
+ if (retval)
goto out_unlock;

array = p->array;
@@ -1532,7 +1534,8 @@
read_lock(&tasklist_lock);
p = find_process_by_pid(pid);
if (p) {
- if (!(retval = security_task_getscheduler(p)))
+ retval = security_task_getscheduler(p);
+ if (!retval)
retval = p->policy;
}
read_unlock(&tasklist_lock);
@@ -1561,7 +1564,8 @@
if (!p)
goto out_unlock;

- if ((retval = security_task_getscheduler(p)))
+ retval = security_task_getscheduler(p);
+ if (retval)
goto out_unlock;

lp.sched_priority = p->rt_priority;
@@ -1820,7 +1824,8 @@
if (!p)
goto out_unlock;

- if ((retval = security_task_getscheduler(p)))
+ retval = security_task_getscheduler(p);
+ if (retval)
goto out_unlock;

jiffies_to_timespec(p->policy & SCHED_FIFO ?
diff -Nru a/kernel/signal.c b/kernel/signal.c
--- a/kernel/signal.c Wed Nov 27 15:17:58 2002
+++ b/kernel/signal.c Wed Nov 27 15:17:58 2002
@@ -739,7 +739,8 @@
ret = -EPERM;
if (bad_signal(sig, info, t))
goto out;
- if ((ret = security_task_kill(t, info, sig)))
+ ret = security_task_kill(t, info, sig);
+ if (ret)
goto out;

/* The null signal is a permissions and process existence probe.
diff -Nru a/kernel/sys.c b/kernel/sys.c
--- a/kernel/sys.c Wed Nov 27 15:17:58 2002
+++ b/kernel/sys.c Wed Nov 27 15:17:58 2002
@@ -485,7 +485,8 @@
int new_egid = old_egid;
int retval;

- if ((retval = security_task_setgid(rgid, egid, (gid_t)-1, LSM_SETID_RE)))
+ retval = security_task_setgid(rgid, egid, (gid_t)-1, LSM_SETID_RE);
+ if (retval)
return retval;

if (rgid != (gid_t) -1) {
@@ -530,7 +531,8 @@
int old_egid = current->egid;
int retval;

- if ((retval = security_task_setgid(gid, (gid_t)-1, (gid_t)-1, LSM_SETID_ID)))
+ retval = security_task_setgid(gid, (gid_t)-1, (gid_t)-1, LSM_SETID_ID);
+ if (retval)
return retval;

if (capable(CAP_SETGID))
@@ -603,7 +605,8 @@
int old_ruid, old_euid, old_suid, new_ruid, new_euid;
int retval;

- if ((retval = security_task_setuid(ruid, euid, (uid_t)-1, LSM_SETID_RE)))
+ retval = security_task_setuid(ruid, euid, (uid_t)-1, LSM_SETID_RE);
+ if (retval)
return retval;

new_ruid = old_ruid = current->uid;
@@ -663,7 +666,8 @@
int old_ruid, old_suid, new_ruid, new_suid;
int retval;

- if ((retval = security_task_setuid(uid, (uid_t)-1, (uid_t)-1, LSM_SETID_ID)))
+ retval = security_task_setuid(uid, (uid_t)-1, (uid_t)-1, LSM_SETID_ID);
+ if (retval)
return retval;

old_ruid = new_ruid = current->uid;
@@ -700,7 +704,8 @@
int old_suid = current->suid;
int retval;

- if ((retval = security_task_setuid(ruid, euid, suid, LSM_SETID_RES)))
+ retval = security_task_setuid(ruid, euid, suid, LSM_SETID_RES);
+ if (retval)
return retval;

if (!capable(CAP_SETUID)) {
@@ -751,7 +756,8 @@
{
int retval;

- if ((retval = security_task_setgid(rgid, egid, sgid, LSM_SETID_RES)))
+ retval = security_task_setgid(rgid, egid, sgid, LSM_SETID_RES);
+ if (retval)
return retval;

if (!capable(CAP_SETGID)) {
@@ -804,7 +810,8 @@
int old_fsuid;
int retval;

- if ((retval = security_task_setuid(uid, (uid_t)-1, (uid_t)-1, LSM_SETID_FS)))
+ retval = security_task_setuid(uid, (uid_t)-1, (uid_t)-1, LSM_SETID_FS);
+ if (retval)
return retval;

old_fsuid = current->fsuid;
@@ -820,7 +827,8 @@
current->fsuid = uid;
}

- if ((retval = security_task_post_setuid(old_fsuid, (uid_t)-1, (uid_t)-1, LSM_SETID_FS)))
+ retval = security_task_post_setuid(old_fsuid, (uid_t)-1, (uid_t)-1, LSM_SETID_FS);
+ if (retval)
return retval;

return old_fsuid;
@@ -834,7 +842,8 @@
int old_fsgid;
int retval;

- if ((retval = security_task_setgid(gid, (gid_t)-1, (gid_t)-1, LSM_SETID_FS)))
+ retval = security_task_setgid(gid, (gid_t)-1, (gid_t)-1, LSM_SETID_FS);
+ if (retval)
return retval;

old_fsgid = current->fsgid;
@@ -959,7 +968,8 @@

retval = -ESRCH;
if (p) {
- if (!(retval = security_task_getpgid(p)))
+ retval = security_task_getpgid(p);
+ if (!retval)
retval = p->pgrp;
}
read_unlock(&tasklist_lock);
@@ -986,7 +996,8 @@

retval = -ESRCH;
if(p) {
- if (!(retval = security_task_getsid(p)))
+ retval = security_task_getsid(p);
+ if (!retval)
retval = p->session;
}
read_unlock(&tasklist_lock);
@@ -1067,7 +1078,8 @@
return -EINVAL;
if(copy_from_user(groups, grouplist, gidsetsize * sizeof(gid_t)))
return -EFAULT;
- if ((retval = security_task_setgroups(gidsetsize, groups)))
+ retval = security_task_setgroups(gidsetsize, groups);
+ if (retval)
return retval;
memcpy(current->groups, groups, gidsetsize * sizeof(gid_t));
current->ngroups = gidsetsize;
@@ -1230,7 +1242,8 @@
return -EPERM;
}

- if ((retval = security_task_setrlimit(resource, &new_rlim)))
+ retval = security_task_setrlimit(resource, &new_rlim);
+ if (retval)
return retval;

*old_rlim = new_rlim;
@@ -1304,7 +1317,8 @@
int error = 0;
int sig;

- if ((error = security_task_prctl(option, arg2, arg3, arg4, arg5)))
+ error = security_task_prctl(option, arg2, arg3, arg4, arg5);
+ if (error)
return error;

switch (option) {
diff -Nru a/kernel/uid16.c b/kernel/uid16.c
--- a/kernel/uid16.c Wed Nov 27 15:17:58 2002
+++ b/kernel/uid16.c Wed Nov 27 15:17:58 2002
@@ -140,7 +140,8 @@
return -EFAULT;
for (i = 0 ; i < gidsetsize ; i++)
new_groups[i] = (gid_t)groups[i];
- if ((i = security_task_setgroups(gidsetsize, new_groups)))
+ i = security_task_setgroups(gidsetsize, new_groups);
+ if (i)
return i;
memcpy(current->groups, new_groups, gidsetsize * sizeof(gid_t));
current->ngroups = gidsetsize;
-
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