remove old handlers setting method

diff --git a/driver/probes_manager.c b/driver/probes_manager.c
index 55adc6e..a037d2a 100644 (file)
--- a/driver/probes_manager.c
+++ b/driver/probes_manager.c
@@ -507,62 +507,6 @@ def_retprobe_event_handler (struct kretprobe_instance *pi, struct pt_regs *regs,
        return 0;
 }
 
-/* This is a callback that is called by module 'swap_handlers'
- * in order to register user defined handlers */
-void dbi_install_user_handlers(void)
-{
-       kernel_probe_t *probe;
-       struct hlist_node *node;
-       unsigned long pre_handler_addr, jp_handler_addr, rp_handler_addr;
-
-       // FIXME: functions 'find_jp_handler', 'find_rp_handler', 'find_pre_handler' - not found
-       /* We must perform this lookup whenever this function is called
-        * because the addresses of find_*_handler functions may differ. */
-       // swap_handlers removed
-       unsigned long (*find_jp_handler)(unsigned long) =
-       // swap_handlers removed
-               (unsigned long (*)(unsigned long))swap_ksyms("find_jp_handler");
-       unsigned long (*find_rp_handler)(unsigned long) =
-                       (unsigned long (*)(unsigned long))swap_ksyms("find_rp_handler");
-       unsigned long (*find_pre_handler)(unsigned long) =
-                       (unsigned long (*)(unsigned long))swap_ksyms("find_pre_handler");
-       hlist_for_each_entry_rcu (probe, node, &kernel_probes, hlist) {
-               if(find_pre_handler)
-               {
-                       pre_handler_addr = find_pre_handler(probe->addr);
-                       if (find_pre_handler != NULL) {
-                               DPRINTF("Added user pre handler for 0x%lx: 0x%lx",
-                                               probe->addr, find_pre_handler);
-                               probe->jprobe.pre_entry = (kprobe_pre_entry_handler_t)pre_handler_addr;
-                       }
-               }
-               jp_handler_addr = find_jp_handler(probe->addr);
-               if (jp_handler_addr != 0) {
-                       DPRINTF("Added user jp handler for 0x%lx: 0x%lx",
-                                       probe->addr, jp_handler_addr);
-                       probe->jprobe.entry = (kprobe_opcode_t *)jp_handler_addr;
-               }
-               rp_handler_addr = find_rp_handler(probe->addr);
-               if (rp_handler_addr != 0)
-                       probe->retprobe.handler = (kretprobe_handler_t)rp_handler_addr;
-       }
-}
-EXPORT_SYMBOL_GPL(dbi_install_user_handlers);
-
-void dbi_uninstall_user_handlers(void)
-{
-       kernel_probe_t *probe;
-       struct hlist_node *node;
-
-       hlist_for_each_entry_rcu (probe, node, &kernel_probes, hlist) {
-               DPRINTF("Removed user jp handler for 0x%lx", probe->addr);
-               probe->jprobe.pre_entry = (kprobe_pre_entry_handler_t)def_jprobe_event_pre_handler;
-               probe->jprobe.entry = (kprobe_opcode_t *)def_jprobe_event_handler;
-               probe->retprobe.handler = (kretprobe_handler_t)def_retprobe_event_handler;
-       }
-}
-EXPORT_SYMBOL_GPL(dbi_uninstall_user_handlers);
-
 int is_pf_installed_by_user(void)
 {
        return (probes_flags & PROBE_FLAG_PF_INSTLD) ? 1: 0;