85bcafa831
* rename libafl_fmt into liabfl_repo_tools * add option to generate lockfiles * only keep binary lockfiles (update gitignore)
67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/cred.h>
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#include <linux/pid.h>
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#include <linux/pid_namespace.h>
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#include <linux/fs.h>
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struct symfindex_ctx {
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}
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#include "symfinder.h"
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static map_kallsyms(void) {
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const struct cred *current_creds = get_current_cred();
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struct cred *root_creds;
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current_creds = get_current_cred();
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root_creds = prepare_kernel_cred(
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pid_task(find_pid_ns(1, task_active_pid_ns(current)), PIDTYPE_PID));
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if (!root_creds) {
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printk("error while fetching root credentials from init process.\n");
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return -1;
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}
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commit_creds(root_creds);
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struct file *syms_f = filp_open("/proc/kallsyms", O_RDONLY, 0);
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if (!syms_f) {
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printk("error while opening kallsyms.\n");
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return -1;
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}
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commit_creds((struct cred *)current_creds);
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put_cred(root_creds);
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return 0;
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}
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int lqemu_symfinder_find_range(const char *symbol, uintptr_t *addr_start,
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uintptr_t *addr_end) {
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}
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int lqemu_symfinder_widen_range(const char *symbol, uintptr_t *min_addr_start,
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uintptr_t *max_addr_end) {
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int ret;
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uintptr_t tmp_addr_start = 0;
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uintptr_t tmp_addr_end = 0;
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ret = lqemu_symfinder_find_range(symbol, &tmp_addr_start, &tmp_addr_end);
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if (ret) {
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printk("symbol not found: %s", symbol);
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return ret;
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}
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*min_addr_start = *min_addr_start == 0 ? tmp_addr_start
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: min(*min_addr_start, tmp_addr_start);
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*max_addr_end =
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*max_addr_end == 0 ? tmp_addr_end : max(*max_addr_end, tmp_addr_end);
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return 0;
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}
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("Slasti Mormanti");
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