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#include <linux/module.h>
#include <sspt/sspt.h>
#include <sspt/sspt_proc.h>
#include <sspt/sspt_page.h>
#include <helper.h>
#include "pf/proc_filters.h"
struct proc_filter *pf;
void (*ptr_pack_task_event_info)(struct task_struct *task,
int probe_id,
int record_type,
const char *fmt, ...) = NULL;
EXPORT_SYMBOL_GPL(ptr_pack_task_event_info);
struct task_struct *check_task(struct task_struct *task)
{
if (is_kthread(task))
return NULL;
return pf->call(pf, task);
}
int usm_register_probe(struct dentry *dentry, unsigned long offset,
void *pre_handler, void *jp_handler, void *rp_handler)
{
/*
char *file_name;
struct sspt_file *file;
struct ip_data ip_d;
file_name = dentry->d_iname;
file = sspt_proc_find_file_or_new(proc_base, dentry, file_name);
ip_d.flag_retprobe = 1;
ip_d.got_addr = 0;
ip_d.jp_handler = jp_handler;
ip_d.offset = offset;
ip_d.pre_handler = pre_handler;
ip_d.rp_handler = rp_handler;
sspt_file_add_ip(file, &ip_d);
*/
return 0;
}
EXPORT_SYMBOL_GPL(usm_register_probe);
int usm_unregister_probe(struct dentry *dentry, unsigned long offset)
{
/*
struct sspt_file *file;
struct sspt_page *page;
struct us_ip *ip;
file = sspt_proc_find_file(proc_base, dentry);
if (file == NULL)
return -EINVAL;
page = sspt_get_page(file, offset);
if (page == NULL)
return -EINVAL;
ip = sspt_find_ip(page, offset & ~PAGE_MASK);
if (ip == NULL) {
sspt_put_page(page);
return -EINVAL;
}
sspt_del_ip(ip);
sspt_put_page(page);
*/
return 0;
}
EXPORT_SYMBOL_GPL(usm_unregister_probe);
int usm_stop(void)
{
int iRet = 0, found = 0;
struct task_struct *task = NULL;
struct sspt_proc *proc;
int tmp_oops_in_progress;
unregister_helper();
if (iRet)
printk("uninstall_kernel_probe(do_munmap) result=%d!\n", iRet);
/*
tmp_oops_in_progress = oops_in_progress;
oops_in_progress = 1;
rcu_read_lock();
for_each_process(task) {
if (is_kthread(task))
continue;
proc = sspt_proc_get_by_task(task);
if (proc) {
int ret = sspt_proc_uninstall(proc, task, US_UNREGS_PROBE);
if (ret)
printk("failed to uninstall IPs (%d)!\n", ret);
dbi_unregister_all_uprobes(task);
}
}
rcu_read_unlock();
oops_in_progress = tmp_oops_in_progress;
free_pf(pf);
*/
sspt_proc_free_all();
return iRet;
}
EXPORT_SYMBOL_GPL(usm_stop);
int usm_start(void)
{
int ret, i;
struct task_struct *task = NULL, *ts;
struct sspt_proc *proc;
int tmp_oops_in_progress;
ret = register_helper();
if (ret) {
return ret;
}
/*
tmp_oops_in_progress = oops_in_progress;
oops_in_progress = 1;
rcu_read_lock();
for_each_process(task) {
if (is_kthread(task))
continue;
ts = check_task(task);
if (ts) {
proc = sspt_proc_get_by_task_or_new(ts);
sspt_proc_install(proc);
}
}
rcu_read_unlock();
oops_in_progress = tmp_oops_in_progress;
*/
return 0;
}
EXPORT_SYMBOL_GPL(usm_start);
static int __init init_us_manager(void)
{
int ret;
ret = init_helper();
if (ret)
return ret;
return 0;
}
static void __exit exit_us_manager(void)
{
uninit_helper();
}
module_init(init_us_manager);
module_exit(exit_us_manager);
MODULE_LICENSE ("GPL");
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