#include <linux/time.h>
#include <linux/proc_fs.h>
#include <linux/stat.h>
+#include <linux/task_io_accounting_ops.h>
#include <linux/init.h>
#include <linux/capability.h>
#include <linux/file.h>
#include <linux/mount.h>
#include <linux/security.h>
#include <linux/ptrace.h>
+#include <linux/tracehook.h>
#include <linux/cgroup.h>
#include <linux/cpuset.h>
#include <linux/audit.h>
.op = OP, \
}
-#define DIR(NAME, MODE, OTYPE) \
- NOD(NAME, (S_IFDIR|(MODE)), \
- &proc_##OTYPE##_inode_operations, &proc_##OTYPE##_operations, \
- {} )
-#define LNK(NAME, OTYPE) \
+#define DIR(NAME, MODE, iops, fops) \
+ NOD(NAME, (S_IFDIR|(MODE)), &iops, &fops, {} )
+#define LNK(NAME, get_link) \
NOD(NAME, (S_IFLNK|S_IRWXUGO), \
&proc_pid_link_inode_operations, NULL, \
- { .proc_get_link = &proc_##OTYPE##_link } )
-#define REG(NAME, MODE, OTYPE) \
- NOD(NAME, (S_IFREG|(MODE)), NULL, \
- &proc_##OTYPE##_operations, {})
-#define INF(NAME, MODE, OTYPE) \
+ { .proc_get_link = get_link } )
+#define REG(NAME, MODE, fops) \
+ NOD(NAME, (S_IFREG|(MODE)), NULL, &fops, {})
+#define INF(NAME, MODE, read) \
NOD(NAME, (S_IFREG|(MODE)), \
NULL, &proc_info_file_operations, \
- { .proc_read = &proc_##OTYPE } )
-#define ONE(NAME, MODE, OTYPE) \
+ { .proc_read = read } )
+#define ONE(NAME, MODE, show) \
NOD(NAME, (S_IFREG|(MODE)), \
NULL, &proc_single_file_operations, \
- { .proc_show = &proc_##OTYPE } )
+ { .proc_show = show } )
/*
* Count the number of hardlinks for the pid_entry table, excluding the .
return count;
}
-int maps_protect;
-EXPORT_SYMBOL(maps_protect);
-
static struct fs_struct *get_fs_struct(struct task_struct *task)
{
struct fs_struct *fs;
static int get_nr_threads(struct task_struct *tsk)
{
- /* Must be called with the rcu_read_lock held */
unsigned long flags;
int count = 0;
* If current is actively ptrace'ing, and would also be
* permitted to freshly attach with ptrace now, permit it.
*/
- if (task->parent == current && (task->ptrace & PT_PTRACED) &&
- task_is_stopped_or_traced(task) &&
- ptrace_may_attach(task))
- return 0;
+ if (task_is_stopped_or_traced(task)) {
+ int match;
+ rcu_read_lock();
+ match = (tracehook_tracer_task(task) == current);
+ rcu_read_unlock();
+ if (match && ptrace_may_access(task, PTRACE_MODE_ATTACH))
+ return 0;
+ }
/*
* Noone else is allowed.
task_lock(task);
if (task->mm != mm)
goto out;
- if (task->mm != current->mm && __ptrace_may_attach(task) < 0)
+ if (task->mm != current->mm &&
+ __ptrace_may_access(task, PTRACE_MODE_READ) < 0)
goto out;
task_unlock(task);
return mm;
static int proc_pid_schedstat(struct task_struct *task, char *buffer)
{
return sprintf(buffer, "%llu %llu %lu\n",
- task->sched_info.cpu_time,
- task->sched_info.run_delay,
+ (unsigned long long)task->se.sum_exec_runtime,
+ (unsigned long long)task->sched_info.run_delay,
task->sched_info.pcount);
}
#endif
task->latency_record[i].time,
task->latency_record[i].max);
for (q = 0; q < LT_BACKTRACEDEPTH; q++) {
- char sym[KSYM_NAME_LEN];
+ char sym[KSYM_SYMBOL_LEN];
char *c;
if (!task->latency_record[i].backtrace[q])
break;
struct rlimit rlim[RLIM_NLIMITS];
- rcu_read_lock();
- if (!lock_task_sighand(task,&flags)) {
- rcu_read_unlock();
+ if (!lock_task_sighand(task, &flags))
return 0;
- }
memcpy(rlim, task->signal->rlim, sizeof(struct rlimit) * RLIM_NLIMITS);
unlock_task_sighand(task, &flags);
- rcu_read_unlock();
/*
* print the file header
return count;
}
+#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
+static int proc_pid_syscall(struct task_struct *task, char *buffer)
+{
+ long nr;
+ unsigned long args[6], sp, pc;
+
+ if (task_current_syscall(task, &nr, args, 6, &sp, &pc))
+ return sprintf(buffer, "running\n");
+
+ if (nr < 0)
+ return sprintf(buffer, "%ld 0x%lx 0x%lx\n", nr, sp, pc);
+
+ return sprintf(buffer,
+ "%ld 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx 0x%lx\n",
+ nr,
+ args[0], args[1], args[2], args[3], args[4], args[5],
+ sp, pc);
+}
+#endif /* CONFIG_HAVE_ARCH_TRACEHOOK */
+
/************************************************************************/
/* Here the fs part begins */
/************************************************************************/
*/
task = get_proc_task(inode);
if (task) {
- allowed = ptrace_may_attach(task);
+ allowed = ptrace_may_access(task, PTRACE_MODE_READ);
put_task_struct(task);
}
return allowed;
if (!task)
goto out_no_task;
- if (!ptrace_may_attach(task))
+ if (!ptrace_may_access(task, PTRACE_MODE_READ))
goto out;
ret = -ENOMEM;
struct inode *inode = m->private;
struct task_struct *p;
- WARN_ON(!inode);
-
p = get_proc_task(inode);
if (!p)
return -ESRCH;
struct inode *inode = file->f_path.dentry->d_inode;
struct task_struct *p;
- WARN_ON(!inode);
-
p = get_proc_task(inode);
if (!p)
return -ESRCH;
{
struct inode * inode;
struct proc_inode *ei;
+ const struct cred *cred;
/* We need a new inode */
inode->i_uid = 0;
inode->i_gid = 0;
if (task_dumpable(task)) {
- inode->i_uid = task->euid;
- inode->i_gid = task->egid;
+ rcu_read_lock();
+ cred = __task_cred(task);
+ inode->i_uid = cred->euid;
+ inode->i_gid = cred->egid;
+ rcu_read_unlock();
}
security_task_to_inode(task, inode);
{
struct inode *inode = dentry->d_inode;
struct task_struct *task;
+ const struct cred *cred;
+
generic_fillattr(inode, stat);
rcu_read_lock();
if (task) {
if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
task_dumpable(task)) {
- stat->uid = task->euid;
- stat->gid = task->egid;
+ cred = __task_cred(task);
+ stat->uid = cred->euid;
+ stat->gid = cred->egid;
}
}
rcu_read_unlock();
{
struct inode *inode = dentry->d_inode;
struct task_struct *task = get_proc_task(inode);
+ const struct cred *cred;
+
if (task) {
if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
task_dumpable(task)) {
- inode->i_uid = task->euid;
- inode->i_gid = task->egid;
+ rcu_read_lock();
+ cred = __task_cred(task);
+ inode->i_uid = cred->euid;
+ inode->i_gid = cred->egid;
+ rcu_read_unlock();
} else {
inode->i_uid = 0;
inode->i_gid = 0;
struct task_struct *task = get_proc_task(inode);
int fd = proc_fd(inode);
struct files_struct *files;
+ const struct cred *cred;
if (task) {
files = get_files_struct(task);
rcu_read_unlock();
put_files_struct(files);
if (task_dumpable(task)) {
- inode->i_uid = task->euid;
- inode->i_gid = task->egid;
+ rcu_read_lock();
+ cred = __task_cred(task);
+ inode->i_uid = cred->euid;
+ inode->i_gid = cred->egid;
+ rcu_read_unlock();
} else {
inode->i_uid = 0;
inode->i_gid = 0;
file = fcheck_files(files, fd);
if (!file)
goto out_unlock;
- if (file->f_mode & 1)
+ if (file->f_mode & FMODE_READ)
inode->i_mode |= S_IRUSR | S_IXUSR;
- if (file->f_mode & 2)
+ if (file->f_mode & FMODE_WRITE)
inode->i_mode |= S_IWUSR | S_IXUSR;
spin_unlock(&files->file_lock);
put_files_struct(files);
* /proc/pid/fd needs a special permission handler so that a process can still
* access /proc/self/fd after it has executed a setuid().
*/
-static int proc_fd_permission(struct inode *inode, int mask,
- struct nameidata *nd)
+static int proc_fd_permission(struct inode *inode, int mask)
{
int rv;
};
static const struct pid_entry attr_dir_stuff[] = {
- REG("current", S_IRUGO|S_IWUGO, pid_attr),
- REG("prev", S_IRUGO, pid_attr),
- REG("exec", S_IRUGO|S_IWUGO, pid_attr),
- REG("fscreate", S_IRUGO|S_IWUGO, pid_attr),
- REG("keycreate", S_IRUGO|S_IWUGO, pid_attr),
- REG("sockcreate", S_IRUGO|S_IWUGO, pid_attr),
+ REG("current", S_IRUGO|S_IWUGO, proc_pid_attr_operations),
+ REG("prev", S_IRUGO, proc_pid_attr_operations),
+ REG("exec", S_IRUGO|S_IWUGO, proc_pid_attr_operations),
+ REG("fscreate", S_IRUGO|S_IWUGO, proc_pid_attr_operations),
+ REG("keycreate", S_IRUGO|S_IWUGO, proc_pid_attr_operations),
+ REG("sockcreate", S_IRUGO|S_IWUGO, proc_pid_attr_operations),
};
static int proc_attr_dir_readdir(struct file * filp,
}
#ifdef CONFIG_TASK_IO_ACCOUNTING
-static int proc_pid_io_accounting(struct task_struct *task, char *buffer)
+static int do_io_accounting(struct task_struct *task, char *buffer, int whole)
{
+ struct task_io_accounting acct = task->ioac;
+ unsigned long flags;
+
+ if (whole && lock_task_sighand(task, &flags)) {
+ struct task_struct *t = task;
+
+ task_io_accounting_add(&acct, &task->signal->ioac);
+ while_each_thread(task, t)
+ task_io_accounting_add(&acct, &t->ioac);
+
+ unlock_task_sighand(task, &flags);
+ }
return sprintf(buffer,
-#ifdef CONFIG_TASK_XACCT
"rchar: %llu\n"
"wchar: %llu\n"
"syscr: %llu\n"
"syscw: %llu\n"
-#endif
"read_bytes: %llu\n"
"write_bytes: %llu\n"
"cancelled_write_bytes: %llu\n",
-#ifdef CONFIG_TASK_XACCT
- (unsigned long long)task->rchar,
- (unsigned long long)task->wchar,
- (unsigned long long)task->syscr,
- (unsigned long long)task->syscw,
-#endif
- (unsigned long long)task->ioac.read_bytes,
- (unsigned long long)task->ioac.write_bytes,
- (unsigned long long)task->ioac.cancelled_write_bytes);
+ (unsigned long long)acct.rchar,
+ (unsigned long long)acct.wchar,
+ (unsigned long long)acct.syscr,
+ (unsigned long long)acct.syscw,
+ (unsigned long long)acct.read_bytes,
+ (unsigned long long)acct.write_bytes,
+ (unsigned long long)acct.cancelled_write_bytes);
+}
+
+static int proc_tid_io_accounting(struct task_struct *task, char *buffer)
+{
+ return do_io_accounting(task, buffer, 0);
+}
+
+static int proc_tgid_io_accounting(struct task_struct *task, char *buffer)
+{
+ return do_io_accounting(task, buffer, 1);
+}
+#endif /* CONFIG_TASK_IO_ACCOUNTING */
+
+static int proc_pid_personality(struct seq_file *m, struct pid_namespace *ns,
+ struct pid *pid, struct task_struct *task)
+{
+ seq_printf(m, "%08x\n", task->personality);
+ return 0;
}
-#endif
/*
* Thread groups
static const struct inode_operations proc_task_inode_operations;
static const struct pid_entry tgid_base_stuff[] = {
- DIR("task", S_IRUGO|S_IXUGO, task),
- DIR("fd", S_IRUSR|S_IXUSR, fd),
- DIR("fdinfo", S_IRUSR|S_IXUSR, fdinfo),
+ DIR("task", S_IRUGO|S_IXUGO, proc_task_inode_operations, proc_task_operations),
+ DIR("fd", S_IRUSR|S_IXUSR, proc_fd_inode_operations, proc_fd_operations),
+ DIR("fdinfo", S_IRUSR|S_IXUSR, proc_fdinfo_inode_operations, proc_fdinfo_operations),
#ifdef CONFIG_NET
- DIR("net", S_IRUGO|S_IXUGO, net),
+ DIR("net", S_IRUGO|S_IXUGO, proc_net_inode_operations, proc_net_operations),
#endif
- REG("environ", S_IRUSR, environ),
- INF("auxv", S_IRUSR, pid_auxv),
- ONE("status", S_IRUGO, pid_status),
- INF("limits", S_IRUSR, pid_limits),
+ REG("environ", S_IRUSR, proc_environ_operations),
+ INF("auxv", S_IRUSR, proc_pid_auxv),
+ ONE("status", S_IRUGO, proc_pid_status),
+ ONE("personality", S_IRUSR, proc_pid_personality),
+ INF("limits", S_IRUSR, proc_pid_limits),
#ifdef CONFIG_SCHED_DEBUG
- REG("sched", S_IRUGO|S_IWUSR, pid_sched),
+ REG("sched", S_IRUGO|S_IWUSR, proc_pid_sched_operations),
#endif
- INF("cmdline", S_IRUGO, pid_cmdline),
- ONE("stat", S_IRUGO, tgid_stat),
- ONE("statm", S_IRUGO, pid_statm),
- REG("maps", S_IRUGO, maps),
+#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
+ INF("syscall", S_IRUSR, proc_pid_syscall),
+#endif
+ INF("cmdline", S_IRUGO, proc_pid_cmdline),
+ ONE("stat", S_IRUGO, proc_tgid_stat),
+ ONE("statm", S_IRUGO, proc_pid_statm),
+ REG("maps", S_IRUGO, proc_maps_operations),
#ifdef CONFIG_NUMA
- REG("numa_maps", S_IRUGO, numa_maps),
+ REG("numa_maps", S_IRUGO, proc_numa_maps_operations),
#endif
- REG("mem", S_IRUSR|S_IWUSR, mem),
- LNK("cwd", cwd),
- LNK("root", root),
- LNK("exe", exe),
- REG("mounts", S_IRUGO, mounts),
- REG("mountinfo", S_IRUGO, mountinfo),
- REG("mountstats", S_IRUSR, mountstats),
+ REG("mem", S_IRUSR|S_IWUSR, proc_mem_operations),
+ LNK("cwd", proc_cwd_link),
+ LNK("root", proc_root_link),
+ LNK("exe", proc_exe_link),
+ REG("mounts", S_IRUGO, proc_mounts_operations),
+ REG("mountinfo", S_IRUGO, proc_mountinfo_operations),
+ REG("mountstats", S_IRUSR, proc_mountstats_operations),
#ifdef CONFIG_PROC_PAGE_MONITOR
- REG("clear_refs", S_IWUSR, clear_refs),
- REG("smaps", S_IRUGO, smaps),
- REG("pagemap", S_IRUSR, pagemap),
+ REG("clear_refs", S_IWUSR, proc_clear_refs_operations),
+ REG("smaps", S_IRUGO, proc_smaps_operations),
+ REG("pagemap", S_IRUSR, proc_pagemap_operations),
#endif
#ifdef CONFIG_SECURITY
- DIR("attr", S_IRUGO|S_IXUGO, attr_dir),
+ DIR("attr", S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
#endif
#ifdef CONFIG_KALLSYMS
- INF("wchan", S_IRUGO, pid_wchan),
+ INF("wchan", S_IRUGO, proc_pid_wchan),
#endif
#ifdef CONFIG_SCHEDSTATS
- INF("schedstat", S_IRUGO, pid_schedstat),
+ INF("schedstat", S_IRUGO, proc_pid_schedstat),
#endif
#ifdef CONFIG_LATENCYTOP
- REG("latency", S_IRUGO, lstats),
+ REG("latency", S_IRUGO, proc_lstats_operations),
#endif
#ifdef CONFIG_PROC_PID_CPUSET
- REG("cpuset", S_IRUGO, cpuset),
+ REG("cpuset", S_IRUGO, proc_cpuset_operations),
#endif
#ifdef CONFIG_CGROUPS
- REG("cgroup", S_IRUGO, cgroup),
+ REG("cgroup", S_IRUGO, proc_cgroup_operations),
#endif
- INF("oom_score", S_IRUGO, oom_score),
- REG("oom_adj", S_IRUGO|S_IWUSR, oom_adjust),
+ INF("oom_score", S_IRUGO, proc_oom_score),
+ REG("oom_adj", S_IRUGO|S_IWUSR, proc_oom_adjust_operations),
#ifdef CONFIG_AUDITSYSCALL
- REG("loginuid", S_IWUSR|S_IRUGO, loginuid),
- REG("sessionid", S_IRUGO, sessionid),
+ REG("loginuid", S_IWUSR|S_IRUGO, proc_loginuid_operations),
+ REG("sessionid", S_IRUGO, proc_sessionid_operations),
#endif
#ifdef CONFIG_FAULT_INJECTION
- REG("make-it-fail", S_IRUGO|S_IWUSR, fault_inject),
+ REG("make-it-fail", S_IRUGO|S_IWUSR, proc_fault_inject_operations),
#endif
#if defined(USE_ELF_CORE_DUMP) && defined(CONFIG_ELF_CORE)
- REG("coredump_filter", S_IRUGO|S_IWUSR, coredump_filter),
+ REG("coredump_filter", S_IRUGO|S_IWUSR, proc_coredump_filter_operations),
#endif
#ifdef CONFIG_TASK_IO_ACCOUNTING
- INF("io", S_IRUGO, pid_io_accounting),
+ INF("io", S_IRUGO, proc_tgid_io_accounting),
#endif
};
* Tasks
*/
static const struct pid_entry tid_base_stuff[] = {
- DIR("fd", S_IRUSR|S_IXUSR, fd),
- DIR("fdinfo", S_IRUSR|S_IXUSR, fdinfo),
- REG("environ", S_IRUSR, environ),
- INF("auxv", S_IRUSR, pid_auxv),
- ONE("status", S_IRUGO, pid_status),
- INF("limits", S_IRUSR, pid_limits),
+ DIR("fd", S_IRUSR|S_IXUSR, proc_fd_inode_operations, proc_fd_operations),
+ DIR("fdinfo", S_IRUSR|S_IXUSR, proc_fdinfo_inode_operations, proc_fd_operations),
+ REG("environ", S_IRUSR, proc_environ_operations),
+ INF("auxv", S_IRUSR, proc_pid_auxv),
+ ONE("status", S_IRUGO, proc_pid_status),
+ ONE("personality", S_IRUSR, proc_pid_personality),
+ INF("limits", S_IRUSR, proc_pid_limits),
#ifdef CONFIG_SCHED_DEBUG
- REG("sched", S_IRUGO|S_IWUSR, pid_sched),
+ REG("sched", S_IRUGO|S_IWUSR, proc_pid_sched_operations),
+#endif
+#ifdef CONFIG_HAVE_ARCH_TRACEHOOK
+ INF("syscall", S_IRUSR, proc_pid_syscall),
#endif
- INF("cmdline", S_IRUGO, pid_cmdline),
- ONE("stat", S_IRUGO, tid_stat),
- ONE("statm", S_IRUGO, pid_statm),
- REG("maps", S_IRUGO, maps),
+ INF("cmdline", S_IRUGO, proc_pid_cmdline),
+ ONE("stat", S_IRUGO, proc_tid_stat),
+ ONE("statm", S_IRUGO, proc_pid_statm),
+ REG("maps", S_IRUGO, proc_maps_operations),
#ifdef CONFIG_NUMA
- REG("numa_maps", S_IRUGO, numa_maps),
+ REG("numa_maps", S_IRUGO, proc_numa_maps_operations),
#endif
- REG("mem", S_IRUSR|S_IWUSR, mem),
- LNK("cwd", cwd),
- LNK("root", root),
- LNK("exe", exe),
- REG("mounts", S_IRUGO, mounts),
- REG("mountinfo", S_IRUGO, mountinfo),
+ REG("mem", S_IRUSR|S_IWUSR, proc_mem_operations),
+ LNK("cwd", proc_cwd_link),
+ LNK("root", proc_root_link),
+ LNK("exe", proc_exe_link),
+ REG("mounts", S_IRUGO, proc_mounts_operations),
+ REG("mountinfo", S_IRUGO, proc_mountinfo_operations),
#ifdef CONFIG_PROC_PAGE_MONITOR
- REG("clear_refs", S_IWUSR, clear_refs),
- REG("smaps", S_IRUGO, smaps),
- REG("pagemap", S_IRUSR, pagemap),
+ REG("clear_refs", S_IWUSR, proc_clear_refs_operations),
+ REG("smaps", S_IRUGO, proc_smaps_operations),
+ REG("pagemap", S_IRUSR, proc_pagemap_operations),
#endif
#ifdef CONFIG_SECURITY
- DIR("attr", S_IRUGO|S_IXUGO, attr_dir),
+ DIR("attr", S_IRUGO|S_IXUGO, proc_attr_dir_inode_operations, proc_attr_dir_operations),
#endif
#ifdef CONFIG_KALLSYMS
- INF("wchan", S_IRUGO, pid_wchan),
+ INF("wchan", S_IRUGO, proc_pid_wchan),
#endif
#ifdef CONFIG_SCHEDSTATS
- INF("schedstat", S_IRUGO, pid_schedstat),
+ INF("schedstat", S_IRUGO, proc_pid_schedstat),
#endif
#ifdef CONFIG_LATENCYTOP
- REG("latency", S_IRUGO, lstats),
+ REG("latency", S_IRUGO, proc_lstats_operations),
#endif
#ifdef CONFIG_PROC_PID_CPUSET
- REG("cpuset", S_IRUGO, cpuset),
+ REG("cpuset", S_IRUGO, proc_cpuset_operations),
#endif
#ifdef CONFIG_CGROUPS
- REG("cgroup", S_IRUGO, cgroup),
+ REG("cgroup", S_IRUGO, proc_cgroup_operations),
#endif
- INF("oom_score", S_IRUGO, oom_score),
- REG("oom_adj", S_IRUGO|S_IWUSR, oom_adjust),
+ INF("oom_score", S_IRUGO, proc_oom_score),
+ REG("oom_adj", S_IRUGO|S_IWUSR, proc_oom_adjust_operations),
#ifdef CONFIG_AUDITSYSCALL
- REG("loginuid", S_IWUSR|S_IRUGO, loginuid),
- REG("sessionid", S_IRUSR, sessionid),
+ REG("loginuid", S_IWUSR|S_IRUGO, proc_loginuid_operations),
+ REG("sessionid", S_IRUSR, proc_sessionid_operations),
#endif
#ifdef CONFIG_FAULT_INJECTION
- REG("make-it-fail", S_IRUGO|S_IWUSR, fault_inject),
+ REG("make-it-fail", S_IRUGO|S_IWUSR, proc_fault_inject_operations),
+#endif
+#ifdef CONFIG_TASK_IO_ACCOUNTING
+ INF("io", S_IRUGO, proc_tid_io_accounting),
#endif
};
generic_fillattr(inode, stat);
if (p) {
- rcu_read_lock();
stat->nlink += get_nr_threads(p);
- rcu_read_unlock();
put_task_struct(p);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff