From f411030005ce7dee54e12e7da3af739581794f84 Mon Sep 17 00:00:00 2001 From: Vyacheslav Cherkashin Date: Tue, 12 Feb 2013 17:57:44 +0400 Subject: [PATCH] remove old handlers setting method --- driver/probes_manager.c | 56 ------------------------------------------------- 1 file changed, 56 deletions(-) diff --git a/driver/probes_manager.c b/driver/probes_manager.c index 55adc6e..a037d2a 100644 --- 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; -- 2.7.4