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add PID and GID to /proc/pid/status

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add /proc/pid/cmdline

refs #445
refs #447
This commit is contained in:
Tomoki Shirasawa
2015-05-18 17:45:37 +09:00
parent f4162dff52
commit 7d5a68be1b
9 changed files with 319 additions and 21 deletions
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219
kernel/syscall.c
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@@ -2035,7 +2035,7 @@ SYSCALL_DECLARE(tgkill)
}
void
do_setresuid(int ruid, int euid, int suid)
do_setresuid(int ruid, int euid, int suid, int fsuid)
{
struct process *proc = cpu_local_var(current);
int pid = proc->ftn->pid;
@@ -2055,6 +2055,37 @@ do_setresuid(int ruid, int euid, int suid)
p->ftn->euid = euid;
if(suid != -1)
p->ftn->suid = suid;
if(fsuid != -1)
p->ftn->fsuid = fsuid;
}
}
ihk_mc_spinlock_unlock(&(v->runq_lock), irqstate);
}
}
void
do_setresgid(int rgid, int egid, int sgid, int fsgid)
{
struct process *proc = cpu_local_var(current);
int pid = proc->ftn->pid;
struct cpu_local_var *v;
struct process *p;
int i;
unsigned long irqstate;
for(i = 0; i < num_processors; i++){
v = get_cpu_local_var(i);
irqstate = ihk_mc_spinlock_lock(&(v->runq_lock));
list_for_each_entry(p, &(v->runq), sched_list){
if(p->ftn->pid == pid){
if(rgid != -1)
p->ftn->rgid = rgid;
if(egid != -1)
p->ftn->egid = egid;
if(sgid != -1)
p->ftn->sgid = sgid;
if(fsgid != -1)
p->ftn->fsgid = fsgid;
}
}
ihk_mc_spinlock_unlock(&(v->runq_lock), irqstate);
@@ -2070,7 +2101,13 @@ SYSCALL_DECLARE(setresuid)
rc = syscall_generic_forwarding(__NR_setresuid, ctx);
if(rc == 0){
do_setresuid(ruid, euid, suid);
struct syscall_request request IHK_DMA_ALIGN;
int fsuid;
request.number = __NR_setfsuid;
request.args[0] = -1;
fsuid = do_syscall(&request, ihk_mc_get_processor_id(), 0);
do_setresuid(ruid, euid, suid, fsuid);
}
return rc;
}
@@ -2087,6 +2124,9 @@ SYSCALL_DECLARE(setreuid)
rc = syscall_generic_forwarding(__NR_setreuid, ctx);
if(rc == 0){
struct syscall_request request IHK_DMA_ALIGN;
int fsuid;
if(euid != -1){
if(euid != ruid_bak){
suid = euid;
@@ -2094,7 +2134,10 @@ SYSCALL_DECLARE(setreuid)
}
else if(ruid != -1){
}
do_setresuid(ruid, euid, suid);
request.number = __NR_setfsuid;
request.args[0] = -1;
fsuid = do_syscall(&request, ihk_mc_get_processor_id(), 0);
do_setresuid(ruid, euid, suid, fsuid);
}
return rc;
}
@@ -2110,15 +2153,183 @@ SYSCALL_DECLARE(setuid)
rc = syscall_generic_forwarding(__NR_setuid, ctx);
if(rc == 0){
struct syscall_request request IHK_DMA_ALIGN;
int fsuid;
if(euid_bak == 0){
ruid = euid;
suid = euid;
}
do_setresuid(ruid, euid, suid);
request.number = __NR_setfsuid;
request.args[0] = -1;
fsuid = do_syscall(&request, ihk_mc_get_processor_id(), 0);
do_setresuid(ruid, euid, suid, fsuid);
}
return rc;
}
SYSCALL_DECLARE(setfsuid)
{
int fsuid;
fsuid = syscall_generic_forwarding(__NR_setfsuid, ctx);
do_setresuid(-1, -1, -1, fsuid);
return fsuid;
}
SYSCALL_DECLARE(setresgid)
{
int rgid = ihk_mc_syscall_arg0(ctx);
int egid = ihk_mc_syscall_arg1(ctx);
int sgid = ihk_mc_syscall_arg2(ctx);
int rc;
rc = syscall_generic_forwarding(__NR_setresgid, ctx);
if(rc == 0){
struct syscall_request request IHK_DMA_ALIGN;
int fsgid;
request.number = __NR_setfsgid;
request.args[0] = -1;
fsgid = do_syscall(&request, ihk_mc_get_processor_id(), 0);
do_setresgid(rgid, egid, sgid, fsgid);
}
return rc;
}
SYSCALL_DECLARE(setregid)
{
int rgid = ihk_mc_syscall_arg0(ctx);
int egid = ihk_mc_syscall_arg1(ctx);
int sgid = -1;
int rc;
struct process *proc = cpu_local_var(current);
// int egid_bak = proc->ftn->egid;
int rgid_bak = proc->ftn->rgid;
rc = syscall_generic_forwarding(__NR_setregid, ctx);
if(rc == 0){
struct syscall_request request IHK_DMA_ALIGN;
int fsgid;
if(egid != -1){
if(egid != rgid_bak){
sgid = egid;
}
}
else if(rgid != -1){
}
request.number = __NR_setfsgid;
request.args[0] = -1;
fsgid = do_syscall(&request, ihk_mc_get_processor_id(), 0);
do_setresgid(rgid, egid, sgid, fsgid);
}
return rc;
}
SYSCALL_DECLARE(setgid)
{
int egid = ihk_mc_syscall_arg0(ctx);
int rgid = -1;
int sgid = -1;
long rc;
struct process *proc = cpu_local_var(current);
int egid_bak = proc->ftn->egid;
rc = syscall_generic_forwarding(__NR_setgid, ctx);
if(rc == 0){
struct syscall_request request IHK_DMA_ALIGN;
int fsgid;
if(egid_bak == 0){
rgid = egid;
sgid = egid;
}
request.number = __NR_setfsgid;
request.args[0] = -1;
fsgid = do_syscall(&request, ihk_mc_get_processor_id(), 0);
do_setresgid(rgid, egid, sgid, fsgid);
}
return rc;
}
SYSCALL_DECLARE(setfsgid)
{
int fsgid;
fsgid = syscall_generic_forwarding(__NR_setfsgid, ctx);
do_setresgid(-1, -1, -1, fsgid);
return fsgid;
}
SYSCALL_DECLARE(getuid)
{
struct process *proc = cpu_local_var(current);
struct fork_tree_node *ftn = proc->ftn;
return ftn->ruid;
}
SYSCALL_DECLARE(geteuid)
{
struct process *proc = cpu_local_var(current);
struct fork_tree_node *ftn = proc->ftn;
return ftn->euid;
}
SYSCALL_DECLARE(getresuid)
{
struct process *proc = cpu_local_var(current);
struct fork_tree_node *ftn = proc->ftn;
int *ruid = (int *)ihk_mc_syscall_arg0(ctx);
int *euid = (int *)ihk_mc_syscall_arg1(ctx);
int *suid = (int *)ihk_mc_syscall_arg2(ctx);
if(copy_to_user(ruid, &ftn->ruid, sizeof(int)))
return -EFAULT;
if(copy_to_user(euid, &ftn->euid, sizeof(int)))
return -EFAULT;
if(copy_to_user(suid, &ftn->suid, sizeof(int)))
return -EFAULT;
return 0;
}
SYSCALL_DECLARE(getgid)
{
struct process *proc = cpu_local_var(current);
struct fork_tree_node *ftn = proc->ftn;
return ftn->rgid;
}
SYSCALL_DECLARE(getegid)
{
struct process *proc = cpu_local_var(current);
struct fork_tree_node *ftn = proc->ftn;
return ftn->egid;
}
SYSCALL_DECLARE(getresgid)
{
struct process *proc = cpu_local_var(current);
struct fork_tree_node *ftn = proc->ftn;
int *rgid = (int *)ihk_mc_syscall_arg0(ctx);
int *egid = (int *)ihk_mc_syscall_arg1(ctx);
int *sgid = (int *)ihk_mc_syscall_arg2(ctx);
if(copy_to_user(rgid, &ftn->rgid, sizeof(int)))
return -EFAULT;
if(copy_to_user(egid, &ftn->egid, sizeof(int)))
return -EFAULT;
if(copy_to_user(sgid, &ftn->sgid, sizeof(int)))
return -EFAULT;
return 0;
}
SYSCALL_DECLARE(setpgid)
{
int pid = ihk_mc_syscall_arg0(ctx);