int memory_engine_takeover(memory_engine_t *engine,int alignaddr)
{
int res = 0;
memory_node_t *node = NULL;
struct task_struct *grptask = NULL;
shm_debug("mem_engine_takeover start, (0x%08X)\n",alignaddr);
if ((NULL == engine) || (0 == alignaddr))
return -EINVAL;
down(&(engine->m_mutex));
/* find alignaddr */
res = _FindNode_alignaddr(engine, alignaddr, &node);
if (0 != res)
goto err_exit;
/* if the node found is a free one, there could be invalid operations */
if (NULL != node->m_next_free) {
shm_error("node(%#.8x) already freed\n",alignaddr);
res = -EFAULT;
goto err_exit;
}
/* change usrtaskid to current */
node->m_usrtaskid = task_tgid_vnr(current);
grptask = pid_task(task_tgid(current),PIDTYPE_PID);
if (NULL == grptask)
memset(node->m_usrtaskname,0,16);
else
strncpy(node->m_usrtaskname,grptask->comm,16);
up(&(engine->m_mutex));
shm_debug("memory_engine_takeover OK.\n");
return 0;
err_exit:
up(&(engine->m_mutex));
shm_error("memory_engine_takeover failed!!! (0x%08X)\n", alignaddr);
return res;
}
static __inline__ int scm_check_creds(struct ucred *creds)
{
const struct cred *cred = current_cred();
kuid_t uid = make_kuid(cred->user_ns, creds->uid);
kgid_t gid = make_kgid(cred->user_ns, creds->gid);
if (!uid_valid(uid) || !gid_valid(gid))
return -EINVAL;
if ((creds->pid == task_tgid_vnr(current) ||
ns_capable(task_active_pid_ns(current)->user_ns, CAP_SYS_ADMIN)) &&
((uid_eq(uid, cred->uid) || uid_eq(uid, cred->euid) ||
uid_eq(uid, cred->suid)) || ns_capable(cred->user_ns, CAP_SETUID)) &&
((gid_eq(gid, cred->gid) || gid_eq(gid, cred->egid) ||
gid_eq(gid, cred->sgid)) || ns_capable(cred->user_ns, CAP_SETGID))) {
return 0;
}
return -EPERM;
}
static int shm_driver_open_noncache(struct inode *inode, struct file *filp)
{
/*save the device and opening task id to private_data
* then from user space we will depend on the specified device
* since there are cache and non-cache device */
struct shm_device_priv_data *priv_data
= kzalloc(sizeof(struct shm_device_priv_data), GFP_KERNEL);
if (NULL == priv_data) {
shm_error("shm_driver_open_noncache fail to allocate memory\n");
return -ENOMEM;
}
priv_data->m_taskid = task_tgid_vnr(current);
priv_data->m_device = shm_device_noncache;
filp->private_data = priv_data;
shm_debug("shm_driver_open_noncache ok\n");
return 0;
}
/*
* remove the attach descriptor vma.
* free memory for segment if it is marked destroyed.
* The descriptor has already been removed from the current->mm->mmap list
* and will later be kfree()d.
*/
static void shm_close(struct vm_area_struct *vma)
{
struct file * file = vma->vm_file;
struct shm_file_data *sfd = shm_file_data(file);
struct shmid_kernel *shp;
struct ipc_namespace *ns = sfd->ns;
down_write(&shm_ids(ns).rwsem);
/* remove from the list of attaches of the shm segment */
shp = shm_lock(ns, sfd->id);
BUG_ON(IS_ERR(shp));
shp->shm_lprid = task_tgid_vnr(current);
shp->shm_dtim = get_seconds();
shp->shm_nattch--;
if (shm_may_destroy(ns, shp))
shm_destroy(ns, shp);
else
shm_unlock(shp);
up_write(&shm_ids(ns).rwsem);
}
static int rootfctrl_path_chmod(struct path *path, umode_t mode)
{
pid_t pid;
char tcomm[sizeof(current->comm)], name_buf[MAX_NAME_BUF_LEN];
char *full_path = get_full_path(path, NULL, name_buf);
if (!is_felica_mode_valid(mode, full_path) || !is_nfc_mode_valid(mode, full_path)) {
pid = task_tgid_vnr(current);
get_task_comm(tcomm, current);
RTFCTL_MSG("########## %s ##########\n", __FUNCTION__);
RTFCTL_MSG("pid: %d (%s)\n", pid, tcomm);
#if (RTFCTL_RUN_MODE != RTFCTL_TRACKING_MODE)
printk("[RTFCTL] RType-6 <%s (%o)-%s (%d, %d)>\n", full_path, mode, tcomm, pid, current_uid());
return -EACCES;
#endif
}
return 0;
}
static int rootfctrl_path_unlink(struct path *dir, struct dentry *dentry)
{
pid_t pid;
char tcomm[sizeof(current->comm)], name_buf[MAX_NAME_BUF_LEN];
char *full_path = get_full_path(dir, dentry, name_buf);
if (is_felica_file(full_path) || is_nfc_file(full_path)) {
pid = task_tgid_vnr(current);
get_task_comm(tcomm, current);
RTFCTL_MSG("########## %s ##########\n", __FUNCTION__);
RTFCTL_MSG("pid: %d (%s)\n", pid, tcomm);
#if (RTFCTL_RUN_MODE != RTFCTL_TRACKING_MODE)
printk("[RTFCTL] RType-2 <%s-%s (%d)>\n", full_path, tcomm, pid);
return -EACCES;
#endif
}
return 0;
}
static int rootfctrl_task_create(unsigned long clone_flags)
{
pid_t ppid = task_tgid_vnr(current->real_parent);
char tcomm[sizeof(current->comm)];
get_task_comm(tcomm, current);
if (zygote_pid == -1) {
if (!strcmp("zygote", tcomm) && current_uid() == 0 && ppid == 1) {
RTFCTL_MSG("########## %s ##########\n", __FUNCTION__);
zygote_pid = task_tgid_vnr(current);
printk("[RTFCTL] Current zg: %d\n", zygote_pid);
}
}
if (flc_daemon_pid == -1) {
if (!strcmp("felica_daemon", tcomm) && current_uid() == 0 && ppid == 1) {
RTFCTL_MSG("########## %s ##########\n", __FUNCTION__);
flc_daemon_pid = task_tgid_vnr(current);
printk("[RTFCTL] Current fdaemon: %d\n", flc_daemon_pid);
}
}
if (flc_agent_pid == -1) {
if (!strcmp("felica_agent", tcomm) && current_uid() == 0 && ppid == 1) {
RTFCTL_MSG("########## %s ##########\n", __FUNCTION__);
flc_agent_pid = task_tgid_vnr(current);
printk("[RTFCTL] Current fagent: %d\n", flc_agent_pid);
}
}
if (installd_pid == -1) {
if (!strcmp("installd", tcomm) && current_uid() == 0 && ppid == 1) {
RTFCTL_MSG("########## %s ##########\n", __FUNCTION__);
installd_pid = task_tgid_vnr(current);
printk("[RTFCTL] Current isd: %d\n", installd_pid);
}
}
if (!strcmp("adbd", tcomm) && ppid == 1) {
RTFCTL_MSG("########## %s ##########\n", __FUNCTION__);
adbd_pid = task_tgid_vnr(current);
}
return 0;
}
/* format_corename will inspect the pattern parameter, and output a
* name into corename, which must have space for at least
* CORENAME_MAX_SIZE bytes plus one byte for the zero terminator.
*/
static int format_corename(struct core_name *cn, struct coredump_params *cprm)
{
const struct cred *cred = current_cred();
const char *pat_ptr = core_pattern;
int ispipe = (*pat_ptr == '|');
int pid_in_pattern = 0;
int err = 0;
cn->size = CORENAME_MAX_SIZE * atomic_read(&call_count);
cn->corename = kmalloc(cn->size, GFP_KERNEL);
cn->used = 0;
if (!cn->corename)
return -ENOMEM;
/* Repeat as long as we have more pattern to process and more output
space */
while (*pat_ptr) {
if (*pat_ptr != '%') {
if (*pat_ptr == 0)
goto out;
err = cn_printf(cn, "%c", *pat_ptr++);
} else {
switch (*++pat_ptr) {
/* single % at the end, drop that */
case 0:
goto out;
/* Double percent, output one percent */
case '%':
err = cn_printf(cn, "%c", '%');
break;
/* pid */
case 'p':
pid_in_pattern = 1;
err = cn_printf(cn, "%d",
task_tgid_vnr(current));
break;
/* uid */
case 'u':
err = cn_printf(cn, "%d", cred->uid);
break;
/* gid */
case 'g':
err = cn_printf(cn, "%d", cred->gid);
break;
case 'd':
err = cn_printf(cn, "%d",
__get_dumpable(cprm->mm_flags));
break;
/* signal that caused the coredump */
case 's':
err = cn_printf(cn, "%ld", cprm->siginfo->si_signo);
break;
/* UNIX time of coredump */
case 't': {
struct timeval tv;
do_gettimeofday(&tv);
err = cn_printf(cn, "%lu", tv.tv_sec);
break;
}
/* hostname */
case 'h': {
char *namestart = cn->corename + cn->used;
down_read(&uts_sem);
err = cn_printf(cn, "%s",
utsname()->nodename);
up_read(&uts_sem);
cn_escape(namestart);
break;
}
/* executable */
case 'e': {
char *commstart = cn->corename + cn->used;
err = cn_printf(cn, "%s", current->comm);
cn_escape(commstart);
break;
}
case 'E':
err = cn_print_exe_file(cn);
break;
/* core limit size */
case 'c':
err = cn_printf(cn, "%lu",
rlimit(RLIMIT_CORE));
break;
default:
break;
}
++pat_ptr;
}
if (err)
return err;
}
/* Backward compatibility with core_uses_pid:
*
* If core_pattern does not include a %p (as is the default)
* and core_uses_pid is set, then .%pid will be appended to
* the filename. Do not do this for piped commands. */
if (!ispipe && !pid_in_pattern && core_uses_pid) {
err = cn_printf(cn, ".%d", task_tgid_vnr(current));
if (err)
return err;
}
out:
return ispipe;
}
long do_msgrcv(int msqid, long *pmtype, void __user *mtext,
size_t msgsz, long msgtyp, int msgflg)
{
struct msg_queue *msq;
struct msg_msg *msg;
int mode;
struct ipc_namespace *ns;
if (msqid < 0 || (long) msgsz < 0)
return -EINVAL;
mode = convert_mode(&msgtyp, msgflg);
ns = current->nsproxy->ipc_ns;
msq = msg_lock_check(ns, msqid);
if (IS_ERR(msq))
return PTR_ERR(msq);
for (;;) {
struct msg_receiver msr_d;
struct list_head *tmp;
msg = ERR_PTR(-EACCES);
if (ipcperms(&msq->q_perm, S_IRUGO))
goto out_unlock;
msg = ERR_PTR(-EAGAIN);
tmp = msq->q_messages.next;
while (tmp != &msq->q_messages) {
struct msg_msg *walk_msg;
walk_msg = list_entry(tmp, struct msg_msg, m_list);
if (testmsg(walk_msg, msgtyp, mode) &&
!security_msg_queue_msgrcv(msq, walk_msg, current,
msgtyp, mode)) {
msg = walk_msg;
if (mode == SEARCH_LESSEQUAL &&
walk_msg->m_type != 1) {
msg = walk_msg;
msgtyp = walk_msg->m_type - 1;
} else {
msg = walk_msg;
break;
}
}
tmp = tmp->next;
}
if (!IS_ERR(msg)) {
/*
* Found a suitable message.
* Unlink it from the queue.
*/
if ((msgsz < msg->m_ts) && !(msgflg & MSG_NOERROR)) {
msg = ERR_PTR(-E2BIG);
goto out_unlock;
}
list_del(&msg->m_list);
msq->q_qnum--;
msq->q_rtime = get_seconds();
msq->q_lrpid = task_tgid_vnr(current);
msq->q_cbytes -= msg->m_ts;
atomic_sub(msg->m_ts, &ns->msg_bytes);
atomic_dec(&ns->msg_hdrs);
ss_wakeup(&msq->q_senders, 0);
msg_unlock(msq);
break;
}
/* No message waiting. Wait for a message */
if (msgflg & IPC_NOWAIT) {
msg = ERR_PTR(-ENOMSG);
goto out_unlock;
}
list_add_tail(&msr_d.r_list, &msq->q_receivers);
msr_d.r_tsk = current;
msr_d.r_msgtype = msgtyp;
msr_d.r_mode = mode;
if (msgflg & MSG_NOERROR)
msr_d.r_maxsize = INT_MAX;
else
msr_d.r_maxsize = msgsz;
msr_d.r_msg = ERR_PTR(-EAGAIN);
current->state = TASK_INTERRUPTIBLE;
msg_unlock(msq);
schedule();
/* Lockless receive, part 1:
* Disable preemption. We don't hold a reference to the queue
* and getting a reference would defeat the idea of a lockless
* operation, thus the code relies on rcu to guarantee the
* existance of msq:
* Prior to destruction, expunge_all(-EIRDM) changes r_msg.
* Thus if r_msg is -EAGAIN, then the queue not yet destroyed.
* rcu_read_lock() prevents preemption between reading r_msg
* and the spin_lock() inside ipc_lock_by_ptr().
*/
rcu_read_lock();
/* Lockless receive, part 2:
* Wait until pipelined_send or expunge_all are outside of
* wake_up_process(). There is a race with exit(), see
* ipc/mqueue.c for the details.
*/
msg = (struct msg_msg*)msr_d.r_msg;
while (msg == NULL) {
cpu_relax();
msg = (struct msg_msg *)msr_d.r_msg;
}
/* Lockless receive, part 3:
* If there is a message or an error then accept it without
* locking.
*/
if (msg != ERR_PTR(-EAGAIN)) {
rcu_read_unlock();
break;
}
/* Lockless receive, part 3:
* Acquire the queue spinlock.
*/
ipc_lock_by_ptr(&msq->q_perm);
rcu_read_unlock();
/* Lockless receive, part 4:
* Repeat test after acquiring the spinlock.
*/
msg = (struct msg_msg*)msr_d.r_msg;
if (msg != ERR_PTR(-EAGAIN))
goto out_unlock;
list_del(&msr_d.r_list);
if (signal_pending(current)) {
msg = ERR_PTR(-ERESTARTNOHAND);
out_unlock:
msg_unlock(msq);
break;
}
}
if (IS_ERR(msg))
return PTR_ERR(msg);
msgsz = (msgsz > msg->m_ts) ? msg->m_ts : msgsz;
*pmtype = msg->m_type;
if (store_msg(mtext, msg, msgsz))
msgsz = -EFAULT;
free_msg(msg);
return msgsz;
}
long do_msgsnd(int msqid, long mtype, void __user *mtext,
size_t msgsz, int msgflg)
{
struct msg_queue *msq;
struct msg_msg *msg;
int err;
struct ipc_namespace *ns;
ns = current->nsproxy->ipc_ns;
if (msgsz > ns->msg_ctlmax || (long) msgsz < 0 || msqid < 0)
return -EINVAL;
if (mtype < 1)
return -EINVAL;
msg = load_msg(mtext, msgsz);
if (IS_ERR(msg))
return PTR_ERR(msg);
msg->m_type = mtype;
msg->m_ts = msgsz;
msq = msg_lock_check(ns, msqid);
if (IS_ERR(msq)) {
err = PTR_ERR(msq);
goto out_free;
}
for (;;) {
struct msg_sender s;
err = -EACCES;
if (ipcperms(&msq->q_perm, S_IWUGO))
goto out_unlock_free;
err = security_msg_queue_msgsnd(msq, msg, msgflg);
if (err)
goto out_unlock_free;
if (msgsz + msq->q_cbytes <= msq->q_qbytes &&
1 + msq->q_qnum <= msq->q_qbytes) {
break;
}
/* queue full, wait: */
if (msgflg & IPC_NOWAIT) {
err = -EAGAIN;
goto out_unlock_free;
}
ss_add(msq, &s);
ipc_rcu_getref(msq);
msg_unlock(msq);
schedule();
ipc_lock_by_ptr(&msq->q_perm);
ipc_rcu_putref(msq);
if (msq->q_perm.deleted) {
err = -EIDRM;
goto out_unlock_free;
}
ss_del(&s);
if (signal_pending(current)) {
err = -ERESTARTNOHAND;
goto out_unlock_free;
}
}
msq->q_lspid = task_tgid_vnr(current);
msq->q_stime = get_seconds();
if (!pipelined_send(msq, msg)) {
/* noone is waiting for this message, enqueue it */
list_add_tail(&msg->m_list, &msq->q_messages);
msq->q_cbytes += msgsz;
msq->q_qnum++;
atomic_add(msgsz, &ns->msg_bytes);
atomic_inc(&ns->msg_hdrs);
}
err = 0;
msg = NULL;
out_unlock_free:
msg_unlock(msq);
out_free:
if (msg != NULL)
free_msg(msg);
return err;
}
int memory_engine_allocate(memory_engine_t *engine, size_t size,
size_t alignment, memory_node_t **node)
{
int res = 0;
memory_node_t *new_node = NULL;
struct task_struct *grptask = NULL;
shm_debug("memory_engine_allocate start. (%d, %d)\n", size, alignment);
if ((engine == NULL) || (node == NULL))
return -EINVAL;
#ifdef SHM_GUARD_BYTES_ENABLE
//add gurad bytes.
if (engine->m_cache_or_noncache == SHM_CACHE){
size += SHM_GUARD_BYTES;
}
#endif
down(&(engine->m_mutex));
if (size > engine->m_size_free) {
shm_error("heap has not enough (%u) bytes for (%u) bytes\n", engine->m_size_free, size);
res = -ENOMEM;
goto err_exit;
}
/* Find a free node in heap */
new_node = _FindNode_size(engine, size, alignment);
if (new_node == NULL) {
memory_node_t *pLastNode = NULL;
pLastNode = engine->m_root.m_prev_free;
if (pLastNode)
shm_error("heap has not enough liner memory for (%u) bytes, free blocks:%u(max free block:%u)\n",
size, engine->m_num_freeblock, pLastNode->m_size);
else
shm_error("heap has not enough liner memory, no free blocks!!!\n");
res = -ENOMEM;
goto err_exit;
}
/* Do we have enough memory after the allocation to split it? */
if (MEMNODE_ALIGN_SIZE(new_node) - size > engine->m_threshold)
_Split(engine, new_node, size + new_node->m_offset);/* Adjust the node size. */
else
engine->m_num_freeblock--;
engine->m_num_usedblock++;
/* Remove the node from the free list. */
new_node->m_prev_free->m_next_free = new_node->m_next_free;
new_node->m_next_free->m_prev_free = new_node->m_prev_free;
new_node->m_next_free =
new_node->m_prev_free = NULL;
/* Fill in the information. */
new_node->m_alignment = alignment;
/*record pid/thread name in node info, for debug usage*/
new_node->m_threadid = task_pid_vnr(current);/*(current)->pid;*/
/* qzhang@marvell
* record creating task id,user task id
* by default user task id is creating task id
* until memory_engine_lock invoked
*/
new_node->m_taskid =
new_node->m_usrtaskid= task_tgid_vnr(current);
strncpy(new_node->m_threadname, current->comm, 16);
grptask = pid_task(task_tgid(current),PIDTYPE_PID);
if (NULL != grptask) {
strncpy(new_node->m_taskname,grptask->comm,16);
strncpy(new_node->m_usrtaskname,grptask->comm,16);
} else {
memset(new_node->m_taskname,0,16);
memset(new_node->m_usrtaskname,0,16);
}
new_node->m_phyaddress = MEMNODE_ALIGN_ADDR(new_node);
memory_engine_insert_shm_node(&(engine->m_shm_root), new_node);
/* Adjust the number of free bytes. */
engine->m_size_free -= new_node->m_size;
engine->m_size_used += new_node->m_size;
engine->m_peak_usedmem = max(engine->m_peak_usedmem, engine->m_size_used);
/* Return the pointer to the node. */
*node = new_node;
#ifdef SHM_GUARD_BYTES_ENABLE
//fill gurad bytes with SHM_GUARD_DATA
if (engine->m_cache_or_noncache == SHM_CACHE) {
memset((void *)(MEMNODE_ALIGN_ADDR(new_node)- engine->m_base
+ engine->m_virt_base + MEMNODE_ALIGN_SIZE(new_node)
- SHM_GUARD_BYTES), SHM_GUARD_DATA, SHM_GUARD_BYTES);
}
#endif
up(&(engine->m_mutex));
shm_debug("Allocated %u (%u) bytes @ 0x%08X (0x%08X) for align (%u)\n",
MEMNODE_ALIGN_SIZE(new_node), new_node->m_size,
MEMNODE_ALIGN_ADDR(new_node), new_node->m_addr,
new_node->m_alignment);
shm_debug("memory_engine_allocate OK.\n");
return 0;
err_exit:
up(&(engine->m_mutex));
*node = NULL;
shm_error("memory_engine_allocate failed !!! (%d, %d) (%d %s)\n",
size, alignment, current->pid, current->comm);
return res;
}
static void cpufreq_limit_work(struct work_struct *work)
{
struct cpufreq_limit_data *limit = container_of(work,
struct cpufreq_limit_data, limit_work);
struct task_struct *p = NULL, *t = NULL;
char **s = limit->limit_name;
char *comm = task_comm;
int cpu, i = 0, len = limit->limit_num;
if (!test_bit(STATE_RESUME_DONE, &limit->resume_state))
goto _exit;
task_comm[0] = 0;
for_each_possible_cpu(cpu) {
p = curr_task(cpu);
t = find_task_by_vpid(task_tgid_vnr(p)); /* parent */
if (t)
p = t;
if (p->flags & PF_KTHREAD)
continue;
if (!likely(p->mm))
continue;
cpufreq_cmdline(p, comm);
pr_debug("cpu %d current (%d) %s\n", cpu, p->pid, comm);
for (i = 0; len > i; i++) {
/* boost : task is running */
if (!strncmp(comm, s[i], strlen(s[i]))) {
limit->time_stamp = 0;
cpufreq_set_max_frequency(limit, 1);
pr_debug(": run %s\n", s[i]);
goto _exit;
}
}
}
for_each_process(p) {
if (p->flags & PF_KTHREAD)
continue;
if (!likely(p->mm))
continue;
cpufreq_cmdline(p, comm);
for (i = 0; len > i; i++) {
if (!strncmp(comm, s[i], strlen(s[i]))) {
pr_debug("detect %s:%s [%ld.%ld ms]\n",
s[i], comm, limit->time_stamp, limit->time_stamp%1000);
limit->current_time_stamp = ktime_to_ms(ktime_get());
if (0 == limit->time_stamp) {
limit->time_stamp = limit->current_time_stamp;
} else {
/* restore : task is sleep status */
if ((limit->current_time_stamp - limit->time_stamp) > limit->op_timeout)
cpufreq_set_max_frequency(limit, 0);
}
goto _exit;
}
}
}
/* restore : not find task */
cpufreq_set_max_frequency(limit, 0);
limit->time_stamp = 0;
_exit:
hrtimer_start(&limit->limit_timer, ms_to_ktime(limit->timer_duration),
HRTIMER_MODE_REL_PINNED);
}
int rootfctrl_task_kill(struct task_struct *p, struct siginfo *info,
int sig, u32 secid)
{
char tcomm[sizeof(p->comm)];
char tcomm2[sizeof(current->comm)];
get_task_comm(tcomm2, current);
get_task_comm(tcomm, p);
if (!strcmp("zygote", tcomm) && (task_tgid_vnr(p) == zygote_pid)) {
RTFCTL_MSG("########## %s ##########\n", __FUNCTION__);
RTFCTL_MSG("pid: %d (%s) kill pid: %d (%s)\n", task_tgid_vnr(current), tcomm2, task_tgid_vnr(p), tcomm);
RTFCTL_MSG("info: %x, isFromKernel: %d\n", (unsigned int)info, SI_FROMKERNEL(info));
RTFCTL_MSG("sig: %d, secid: %d\n", sig, secid);
printk("[RTFCTL] zg killed\n");
zygote_pid = -1;
}
if (!strcmp("felica_daemon", tcomm) && (task_tgid_vnr(p) == flc_daemon_pid)) {
RTFCTL_MSG("########## %s ##########\n", __FUNCTION__);
RTFCTL_MSG("pid: %d (%s) kill pid: %d (%s)\n", task_tgid_vnr(current), tcomm2, task_tgid_vnr(p), tcomm);
RTFCTL_MSG("info: %x, isFromKernel: %d\n", (unsigned int)info, SI_FROMKERNEL(info));
RTFCTL_MSG("sig: %d, secid: %d\n", sig, secid);
printk("[RTFCTL] fdaemon killed\n");
flc_daemon_pid = -1;
}
if (!strcmp("felica_agent", tcomm) && (task_tgid_vnr(p) == flc_agent_pid)) {
RTFCTL_MSG("########## %s ##########\n", __FUNCTION__);
RTFCTL_MSG("pid: %d (%s) kill pid: %d (%s)\n", task_tgid_vnr(current), tcomm2, task_tgid_vnr(p), tcomm);
RTFCTL_MSG("info: %x, isFromKernel: %d\n", (unsigned int)info, SI_FROMKERNEL(info));
RTFCTL_MSG("sig: %d, secid: %d\n", sig, secid);
printk("[RTFCTL] fagent killed\n");
flc_agent_pid = -1;
}
if (!strcmp("installd", tcomm) && (task_tgid_vnr(p) == installd_pid)) {
RTFCTL_MSG("########## %s ##########\n", __FUNCTION__);
RTFCTL_MSG("pid: %d (%s) kill pid: %d (%s)\n", task_tgid_vnr(current), tcomm2, task_tgid_vnr(p), tcomm);
RTFCTL_MSG("info: %x, isFromKernel: %d\n", (unsigned int)info, SI_FROMKERNEL(info));
RTFCTL_MSG("sig: %d, secid: %d\n", sig, secid);
printk("[RTFCTL] isd killed\n");
installd_pid = -1;
}
return 0;
}
static int rootfctrl_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode, unsigned int dev)
{
pid_t pid;
char tcomm[sizeof(current->comm)], name_buf[MAX_NAME_BUF_LEN];
char *full_path = get_full_path(dir, dentry, name_buf);
int ret, format = mode & S_IFMT;
if (format == S_IFCHR || format == S_IFBLK) {
dev_t dev_num;
dev_num = new_decode_dev(dev);
ret = is_felica_dev(MAJOR(dev_num), MINOR(dev_num), full_path);
if (ret < 0) {
pid = task_tgid_vnr(current);
get_task_comm(tcomm, current);
RTFCTL_MSG("########## %s(felica dev node) ##########\n", __FUNCTION__);
RTFCTL_MSG("pid: %d (%s)\n", task_tgid_vnr(current), tcomm);
RTFCTL_MSG("mode: %o\n", mode);
RTFCTL_MSG("Felica Node major/minor wrong or Fake felica node\n");
#if (RTFCTL_RUN_MODE != RTFCTL_TRACKING_MODE)
printk("[RTFCTL] RType-3-1-%d <%s (%o, %u, %u)-%s (%d)>\n", ret, full_path,
mode, MAJOR(dev_num), MINOR(dev_num), tcomm, pid);
return -EACCES;
#endif
}
ret = is_nfc_dev(MAJOR(dev_num), MINOR(dev_num), full_path);
if (ret < 0) {
pid = task_tgid_vnr(current);
get_task_comm(tcomm, current);
RTFCTL_MSG("########## %s(nfc dev node) ##########\n", __FUNCTION__);
RTFCTL_MSG("pid: %d (%s)\n", task_tgid_vnr(current), tcomm);
RTFCTL_MSG("mode: %o\n", mode);
RTFCTL_MSG("Nfc Node major/minor wrong or Fake nfc node\n");
#if (RTFCTL_RUN_MODE != RTFCTL_TRACKING_MODE)
printk("[RTFCTL] RType-3-2-%d <%s (%o, %u, %u)-%s (%d)>\n", ret, full_path,
mode, MAJOR(dev_num), MINOR(dev_num), tcomm, pid);
return -EACCES;
#endif
}
}
else if (is_felica_file(full_path)) {
pid = task_tgid_vnr(current);
get_task_comm(tcomm, current);
RTFCTL_MSG("########## %s(regular file) ##########\n", __FUNCTION__);
RTFCTL_MSG("pid: %d (%s)\n", task_tgid_vnr(current), tcomm);
RTFCTL_MSG("mode: %o\n", mode);
RTFCTL_MSG("Can't create Felica file dynamically\n");
#if (RTFCTL_RUN_MODE != RTFCTL_TRACKING_MODE)
printk("[RTFCTL] RType-3-3 <%s (%o)-%s (%d)>\n", full_path, mode, tcomm, pid);
return -EACCES;
#endif
}
return 0;
}
RTFCTL_MSG("info: %x, isFromKernel: %d\n", (unsigned int)info, SI_FROMKERNEL(info));
RTFCTL_MSG("sig: %d, secid: %d\n", sig, secid);
printk("[RTFCTL] isd killed\n");
installd_pid = -1;
}
return 0;
}
static int rootfctrl_task_fix_setuid (struct cred *new, const struct cred *old, int flags)
{
pid_t pid, ppid;
char tcomm[sizeof(current->comm)];
char ptcomm[sizeof(current->real_parent->comm)];
pid = task_tgid_vnr(current);
ppid = task_tgid_vnr(current->real_parent);
get_task_comm(tcomm, current);
get_task_comm(ptcomm, current->real_parent);
#if (RTFCTL_RUN_MODE == RTFCTL_TRACKING_MODE)
if (is_felica_uid(new->uid) || is_nfc_uid(new->uid)) {
RTFCTL_MSG("########## %s ##########\n", __FUNCTION__);
RTFCTL_MSG("old->uid = %d, old->gid = %d\n", old->uid, old->gid);
RTFCTL_MSG("old->suid = %d, old->sgid = %d\n", old->suid, old->sgid);
RTFCTL_MSG("old->euid = %d, old->egid = %d\n", old->euid, old->egid);
RTFCTL_MSG("new->uid = %d, new->gid = %d\n", new->uid, new->gid);
RTFCTL_MSG("new->suid = %d, new->sgid = %d\n", new->suid, new->sgid);
RTFCTL_MSG("new->euid = %d, new->egid = %d\n", new->euid, new->egid);
RTFCTL_MSG("Zygote pid: %d\n", zygote_pid);
