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Viewing changes to src/jprobes/test-jprobe.c

  • Committer: Bazaar Package Importer
  • Author(s): Daniel Baumann
  • Date: 2009-10-17 09:21:46 UTC
  • mfrom: (16.1.4 sid)
  • Revision ID: james.westby@ubuntu.com-20091017092146-mx8azups35026ux3
Tags: 81-2
* Adding patch from upstream to ecryptfs-setup-private, in order to
  not incorrectly assume that the home/private directory ownerships
  should be owned by USER:USER but USER:GROUP.
* Minimizing rules file.
* Sorting and wrapping depends.

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Lines of Context:
src/jprobes/test-jprobe.c
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/kprobes.h>
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#include <linux/kallsyms.h>
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#include <linux/fs.h>
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struct jprobe_mapping_elem {
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        struct jprobe *jp;
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        char *symbol;
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        void *fp;
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};
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void jp_ecryptfs_kill_block_super(struct super_block *sb)
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{
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        printk(KERN_INFO "sb = [0x%p]\n", sb);
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        jprobe_return();
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}
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struct jprobe_mapping_elem jprobe_mapping[] = {
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        {NULL, "ecryptfs_kill_block_super", jp_ecryptfs_kill_block_super},
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};
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static int __init test_jprobe_init(void)
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{
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        int i;
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        for (i = 0; i < ARRAY_SIZE(jprobe_mapping); i++) {
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                jprobe_mapping[i].jp = kmalloc(sizeof(struct jprobe),
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                                               GFP_KERNEL);
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                jprobe_mapping[i].jp->entry = jprobe_mapping[i].fp;
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                jprobe_mapping[i].jp->kp.addr = (kprobe_opcode_t *)
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                        kallsyms_lookup_name(jprobe_mapping[i].symbol);
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                if (jprobe_mapping[i].jp->kp.addr == NULL) {
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                        printk(KERN_NOTICE "Unable to find symbol [%s]\n",
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                               jprobe_mapping[i].symbol);
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                        return 1;
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                }
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                register_jprobe(jprobe_mapping[i].jp);
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        }
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        return 0;
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}
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static void __exit test_jprobe_exit(void)
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{
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        int i;
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        for (i = 0; i < ARRAY_SIZE(jprobe_mapping); i++) {
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                unregister_jprobe(jprobe_mapping[i].jp);
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                kfree(jprobe_mapping[i].jp);
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        }
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}
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module_init(test_jprobe_init);
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module_exit(test_jprobe_exit);
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MODULE_LICENSE("GPL");