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kernel: Extend sulog to also record system call logs

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ShirkNeko
2025-10-22 20:43:14 +08:00
parent ad3cd241f8
commit 1a63b2d756
4 changed files with 116 additions and 1 deletions
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7
kernel/sucompat.c
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@@ -81,6 +81,7 @@ int ksu_handle_faccessat(int *dfd, const char __user **filename_user, int *mode,
ksu_strncpy_from_user_nofault(path, *filename_user, sizeof(path));
if (unlikely(!memcmp(path, su, sizeof(su)))) {
ksu_sulog_report_syscall(current_uid().val, NULL, "faccessat", path);
pr_info("faccessat su->sh!\n");
*filename_user = sh_user_path();
}
@@ -101,6 +102,7 @@ struct filename* susfs_ksu_handle_stat(int *dfd, const char __user **filename_us
}
const char sh[] = SH_PATH;
ksu_sulog_report_syscall(current_uid().val, NULL, "vfs_fstatat", sh);
pr_info("vfs_fstatat su->sh!\n");
memcpy((void *)name->name, sh, sizeof(sh));
return name;
@@ -149,6 +151,7 @@ int ksu_handle_stat(int *dfd, const char __user **filename_user, int *flags)
ksu_strncpy_from_user_nofault(path, *filename_user, sizeof(path));
if (unlikely(!memcmp(path, su, sizeof(su)))) {
ksu_sulog_report_syscall(current_uid().val, NULL, "newfstatat", path);
pr_info("newfstatat su->sh!\n");
*filename_user = sh_user_path();
}
@@ -182,6 +185,8 @@ int ksu_handle_execveat_sucompat(int *fd, struct filename **filename_ptr,
if (likely(memcmp(filename->name, su, sizeof(su))))
return 0;
ksu_sulog_report_syscall(current_uid_val, NULL, "execve", filename->name);
bool is_allowed = ksu_is_allow_uid(current_uid_val);
#ifndef CONFIG_KSU_SUSFS_SUS_SU
@@ -242,6 +247,8 @@ int ksu_handle_execve_sucompat(int *fd, const char __user **filename_user,
if (likely(memcmp(path, su, sizeof(su))))
return 0;
ksu_sulog_report_syscall(current_uid_val, NULL, "execve", path);
bool is_allowed = ksu_is_allow_uid(current_uid_val);
ksu_sulog_report_su_attempt(current_uid_val, NULL, path, is_allowed);