Implement add_key, keyctl, and request_key decoding
* keyctl.c: New file. * linux/keyctl.h: Likewise. * Makefile.am (strace_SOURCES): Add keyctl.c. (EXTRA_DIST): Add linux/keyctl.h. * linux/dummy.h (sys_add_key, sys_keyctl, sys_request_key): Remove. * linux/syscall.h (sys_add_key, sys_keyctl, sys_request_key): New prototypes.
This commit is contained in:
parent
fc4727de60
commit
3acf4035ea
@ -28,6 +28,7 @@ strace_SOURCES = \
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ioprio.c \
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ipc.c \
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kexec.c \
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keyctl.c \
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loop.c \
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mem.c \
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mtd.c \
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@ -115,6 +116,7 @@ EXTRA_DIST = \
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linux/ioctlent.sh \
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linux/ioctlsort.c \
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linux/kexec.h \
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linux/keyctl.h \
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linux/m68k/ioctlent.h.in \
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linux/m68k/syscallent.h \
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linux/metag/ioctlent.h.in \
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455
keyctl.c
Normal file
455
keyctl.c
Normal file
@ -0,0 +1,455 @@
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#include "defs.h"
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#include <linux/keyctl.h>
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typedef int32_t key_serial_t;
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static const struct xlat key_spec[] = {
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XLAT(KEY_SPEC_THREAD_KEYRING),
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XLAT(KEY_SPEC_PROCESS_KEYRING),
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XLAT(KEY_SPEC_SESSION_KEYRING),
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XLAT(KEY_SPEC_USER_KEYRING),
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XLAT(KEY_SPEC_USER_SESSION_KEYRING),
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XLAT(KEY_SPEC_GROUP_KEYRING),
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XLAT(KEY_SPEC_REQKEY_AUTH_KEY),
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XLAT(KEY_SPEC_REQUESTOR_KEYRING),
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XLAT_END
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};
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static void
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print_keyring_serial_number(key_serial_t id)
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{
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const char *str = xlookup(key_spec, id);
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if (str)
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tprints(str);
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else
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tprintf("%d", id);
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}
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int
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sys_add_key(struct tcb *tcp)
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{
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if (entering(tcp)) {
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/* type */
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printstr(tcp, tcp->u_arg[0], -1);
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/* description */
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tprints(", ");
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printstr(tcp, tcp->u_arg[1], -1);
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/* payload */
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tprints(", ");
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printstr(tcp, tcp->u_arg[2], tcp->u_arg[3]);
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/* payload length */
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tprintf(", %lu, ", tcp->u_arg[3]);
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/* keyring serial number */
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print_keyring_serial_number(tcp->u_arg[4]);
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}
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return 0;
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}
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int
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sys_request_key(struct tcb *tcp)
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{
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if (entering(tcp)) {
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/* type */
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printstr(tcp, tcp->u_arg[0], -1);
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/* description */
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tprints(", ");
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printstr(tcp, tcp->u_arg[1], -1);
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/* callout_info */
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tprints(", ");
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printstr(tcp, tcp->u_arg[2], -1);
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/* keyring serial number */
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tprints(", ");
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print_keyring_serial_number(tcp->u_arg[3]);
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}
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return 0;
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}
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static int
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keyctl_get_keyring_id(struct tcb *tcp, key_serial_t id, int create)
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{
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if (entering(tcp)) {
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tprints(", ");
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print_keyring_serial_number(id);
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tprintf(", %d", create);
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}
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return 0;
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}
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static int
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keyctl_join_session_keyring(struct tcb *tcp, long addr)
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{
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if (entering(tcp)) {
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tprints(", ");
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printstr(tcp, addr, -1);
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}
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return 0;
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}
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static int
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keyctl_update_key(struct tcb *tcp, key_serial_t id, long addr, long len)
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{
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if (entering(tcp)) {
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tprints(", ");
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print_keyring_serial_number(id);
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tprints(", ");
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printstr(tcp, addr, len);
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tprintf(", %lu", len);
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}
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return 0;
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}
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static int
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keyctl_handle_key(struct tcb *tcp, key_serial_t id)
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{
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if (entering(tcp)) {
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tprints(", ");
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print_keyring_serial_number(id);
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}
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return 0;
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}
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static int
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keyctl_handle_key_key(struct tcb *tcp, key_serial_t id1, key_serial_t id2)
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{
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if (entering(tcp)) {
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tprints(", ");
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print_keyring_serial_number(id1);
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tprints(", ");
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print_keyring_serial_number(id2);
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}
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return 0;
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}
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static int
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keyctl_read_key(struct tcb *tcp, key_serial_t id, long addr, long len)
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{
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if (entering(tcp)) {
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tprints(", ");
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print_keyring_serial_number(id);
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tprints(", ");
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} else {
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if (addr && syserror(tcp))
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tprintf("%#lx", addr);
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else {
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long rval = tcp->u_rval > len ?
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len : (tcp->u_rval ? -1 : 0);
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printstr(tcp, addr, rval);
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}
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tprintf(", %lu", len);
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}
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return 0;
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}
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static int
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keyctl_keyring_search(struct tcb *tcp, key_serial_t id1, long addr1,
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long addr2, key_serial_t id2)
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{
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if (entering(tcp)) {
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tprints(", ");
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print_keyring_serial_number(id1);
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tprints(", ");
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printstr(tcp, addr1, -1);
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tprints(", ");
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printstr(tcp, addr2, -1);
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tprints(", ");
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print_keyring_serial_number(id2);
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}
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return 0;
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}
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static int
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keyctl_chown_key(struct tcb *tcp, key_serial_t id, int user, int group)
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{
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if (entering(tcp)) {
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tprints(", ");
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print_keyring_serial_number(id);
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tprintf(", %d, %d", user, group);
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}
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return 0;
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}
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static int
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keyctl_instantiate_key(struct tcb *tcp, key_serial_t id1, long addr,
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long len, key_serial_t id2)
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{
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if (entering(tcp)) {
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tprints(", ");
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print_keyring_serial_number(id1);
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tprints(", ");
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printstr(tcp, addr, len);
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tprintf(", %lu, ", len);
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print_keyring_serial_number(id2);
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}
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return 0;
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}
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static int
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keyctl_instantiate_key_iov(struct tcb *tcp, key_serial_t id1,
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long addr, long len, key_serial_t id2)
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{
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if (entering(tcp)) {
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tprints(", ");
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print_keyring_serial_number(id1);
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tprints(", ");
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tprint_iov(tcp, len, addr, 1);
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tprintf(", %lu, ", len);
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print_keyring_serial_number(id2);
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}
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return 0;
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}
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static int
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keyctl_negate_key(struct tcb *tcp, key_serial_t id1, unsigned timeout,
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key_serial_t id2)
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{
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if (entering(tcp)) {
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tprints(", ");
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print_keyring_serial_number(id1);
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tprintf(", %u, ", timeout);
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print_keyring_serial_number(id2);
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}
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return 0;
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}
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static int
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keyctl_reject_key(struct tcb *tcp, key_serial_t id1, unsigned timeout,
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unsigned error, key_serial_t id2)
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{
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if (entering(tcp)) {
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tprints(", ");
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print_keyring_serial_number(id1);
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tprintf(", %u, %u, ", timeout, error);
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print_keyring_serial_number(id2);
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}
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return 0;
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}
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static int
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keyctl_set_timeout(struct tcb *tcp, key_serial_t id, unsigned timeout)
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{
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if (entering(tcp)) {
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tprints(", ");
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print_keyring_serial_number(id);
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tprintf(", %u", timeout);
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}
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return 0;
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}
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static int
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keyctl_get_persistent(struct tcb *tcp, int uid, key_serial_t id)
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{
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if (entering(tcp)) {
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tprintf(", %d, ", uid);
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print_keyring_serial_number(id);
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}
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return 0;
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}
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#define KEY_POS_VIEW 0x01000000
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#define KEY_POS_READ 0x02000000
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#define KEY_POS_WRITE 0x04000000
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#define KEY_POS_SEARCH 0x08000000
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#define KEY_POS_LINK 0x10000000
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#define KEY_POS_SETATTR 0x20000000
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#define KEY_POS_ALL 0x3f000000
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#define KEY_USR_VIEW 0x00010000
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#define KEY_USR_READ 0x00020000
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#define KEY_USR_WRITE 0x00040000
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#define KEY_USR_SEARCH 0x00080000
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#define KEY_USR_LINK 0x00100000
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#define KEY_USR_SETATTR 0x00200000
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#define KEY_USR_ALL 0x003f0000
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#define KEY_GRP_VIEW 0x00000100
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#define KEY_GRP_READ 0x00000200
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#define KEY_GRP_WRITE 0x00000400
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#define KEY_GRP_SEARCH 0x00000800
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#define KEY_GRP_LINK 0x00001000
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#define KEY_GRP_SETATTR 0x00002000
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#define KEY_GRP_ALL 0x00003f00
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#define KEY_OTH_VIEW 0x00000001
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#define KEY_OTH_READ 0x00000002
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#define KEY_OTH_WRITE 0x00000004
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#define KEY_OTH_SEARCH 0x00000008
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#define KEY_OTH_LINK 0x00000010
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#define KEY_OTH_SETATTR 0x00000020
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#define KEY_OTH_ALL 0x0000003f
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static const struct xlat key_perms[] = {
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XLAT(KEY_POS_VIEW),
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XLAT(KEY_POS_READ),
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XLAT(KEY_POS_WRITE),
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XLAT(KEY_POS_SEARCH),
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XLAT(KEY_POS_LINK),
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XLAT(KEY_POS_SETATTR),
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XLAT(KEY_POS_ALL),
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XLAT(KEY_USR_VIEW),
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XLAT(KEY_USR_READ),
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XLAT(KEY_USR_WRITE),
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XLAT(KEY_USR_SEARCH),
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XLAT(KEY_USR_LINK),
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XLAT(KEY_USR_SETATTR),
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XLAT(KEY_USR_ALL),
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XLAT(KEY_GRP_VIEW),
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XLAT(KEY_GRP_READ),
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XLAT(KEY_GRP_WRITE),
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XLAT(KEY_GRP_SEARCH),
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XLAT(KEY_GRP_LINK),
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XLAT(KEY_GRP_SETATTR),
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XLAT(KEY_GRP_ALL),
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XLAT(KEY_OTH_VIEW),
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XLAT(KEY_OTH_READ),
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XLAT(KEY_OTH_WRITE),
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XLAT(KEY_OTH_SEARCH),
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XLAT(KEY_OTH_LINK),
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XLAT(KEY_OTH_SETATTR),
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XLAT(KEY_OTH_ALL),
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XLAT_END
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};
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static int
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keyctl_setperm_key(struct tcb *tcp, key_serial_t id, uint32_t perm)
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{
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if (entering(tcp)) {
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tprints(", ");
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print_keyring_serial_number(id);
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tprints(", ");
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printflags(key_perms, perm, "KEY_???");
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}
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return 0;
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}
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static const struct xlat key_reqkeys[] = {
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XLAT(KEY_REQKEY_DEFL_NO_CHANGE),
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XLAT(KEY_REQKEY_DEFL_DEFAULT),
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XLAT(KEY_REQKEY_DEFL_THREAD_KEYRING),
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XLAT(KEY_REQKEY_DEFL_PROCESS_KEYRING),
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XLAT(KEY_REQKEY_DEFL_SESSION_KEYRING),
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XLAT(KEY_REQKEY_DEFL_USER_KEYRING),
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XLAT(KEY_REQKEY_DEFL_USER_SESSION_KEYRING),
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XLAT(KEY_REQKEY_DEFL_GROUP_KEYRING),
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XLAT(KEY_REQKEY_DEFL_REQUESTOR_KEYRING),
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XLAT_END
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};
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static int
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keyctl_set_reqkey_keyring(struct tcb *tcp, int reqkey)
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{
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if (entering(tcp)) {
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tprints(", ");
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printxval(key_reqkeys, reqkey, "KEY_REQKEY_DEFL_???");
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}
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return 0;
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}
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static const struct xlat keyctl_commands[] = {
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XLAT(KEYCTL_GET_KEYRING_ID),
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XLAT(KEYCTL_JOIN_SESSION_KEYRING),
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XLAT(KEYCTL_UPDATE),
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XLAT(KEYCTL_REVOKE),
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XLAT(KEYCTL_CHOWN),
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XLAT(KEYCTL_SETPERM),
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XLAT(KEYCTL_DESCRIBE),
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XLAT(KEYCTL_CLEAR),
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XLAT(KEYCTL_LINK),
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XLAT(KEYCTL_UNLINK),
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XLAT(KEYCTL_SEARCH),
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XLAT(KEYCTL_READ),
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XLAT(KEYCTL_INSTANTIATE),
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XLAT(KEYCTL_NEGATE),
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XLAT(KEYCTL_SET_REQKEY_KEYRING),
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XLAT(KEYCTL_SET_TIMEOUT),
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XLAT(KEYCTL_ASSUME_AUTHORITY),
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XLAT(KEYCTL_GET_SECURITY),
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XLAT(KEYCTL_SESSION_TO_PARENT),
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XLAT(KEYCTL_REJECT),
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XLAT(KEYCTL_INSTANTIATE_IOV),
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XLAT(KEYCTL_INVALIDATE),
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XLAT(KEYCTL_GET_PERSISTENT),
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XLAT_END
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};
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int
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sys_keyctl(struct tcb *tcp)
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{
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int cmd = tcp->u_arg[0];
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if (entering(tcp))
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printxval(keyctl_commands, cmd, "KEYCTL_???");
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switch (cmd) {
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case KEYCTL_GET_KEYRING_ID:
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return keyctl_get_keyring_id(tcp, tcp->u_arg[1], tcp->u_arg[2]);
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case KEYCTL_JOIN_SESSION_KEYRING:
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return keyctl_join_session_keyring(tcp, tcp->u_arg[1]);
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case KEYCTL_UPDATE:
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return keyctl_update_key(tcp, tcp->u_arg[1],
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tcp->u_arg[2], tcp->u_arg[3]);
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case KEYCTL_REVOKE:
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case KEYCTL_CLEAR:
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case KEYCTL_INVALIDATE:
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case KEYCTL_ASSUME_AUTHORITY:
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return keyctl_handle_key(tcp, tcp->u_arg[1]);
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case KEYCTL_LINK:
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case KEYCTL_UNLINK:
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return keyctl_handle_key_key(tcp, tcp->u_arg[1], tcp->u_arg[2]);
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case KEYCTL_DESCRIBE:
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case KEYCTL_READ:
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case KEYCTL_GET_SECURITY:
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return keyctl_read_key(tcp, tcp->u_arg[1],
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tcp->u_arg[2], tcp->u_arg[3]);
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case KEYCTL_SEARCH:
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return keyctl_keyring_search(tcp, tcp->u_arg[1], tcp->u_arg[2],
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tcp->u_arg[3], tcp->u_arg[4]);
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case KEYCTL_CHOWN:
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return keyctl_chown_key(tcp, tcp->u_arg[1],
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tcp->u_arg[2], tcp->u_arg[3]);
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case KEYCTL_SETPERM:
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return keyctl_setperm_key(tcp, tcp->u_arg[1], tcp->u_arg[2]);
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case KEYCTL_INSTANTIATE:
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return keyctl_instantiate_key(tcp, tcp->u_arg[1], tcp->u_arg[2],
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tcp->u_arg[3], tcp->u_arg[4]);
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case KEYCTL_NEGATE:
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return keyctl_negate_key(tcp, tcp->u_arg[1],
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tcp->u_arg[2], tcp->u_arg[3]);
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case KEYCTL_SET_REQKEY_KEYRING:
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return keyctl_set_reqkey_keyring(tcp, tcp->u_arg[1]);
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case KEYCTL_SET_TIMEOUT:
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return keyctl_set_timeout(tcp, tcp->u_arg[1], tcp->u_arg[2]);
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case KEYCTL_SESSION_TO_PARENT:
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return 0;
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case KEYCTL_REJECT:
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return keyctl_reject_key(tcp, tcp->u_arg[1], tcp->u_arg[2],
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tcp->u_arg[3], tcp->u_arg[4]);
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case KEYCTL_INSTANTIATE_IOV:
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return keyctl_instantiate_key_iov(tcp, tcp->u_arg[1],
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tcp->u_arg[2], tcp->u_arg[3],
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tcp->u_arg[4]);
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case KEYCTL_GET_PERSISTENT:
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return keyctl_get_persistent(tcp, tcp->u_arg[1], tcp->u_arg[2]);
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default:
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if (entering(tcp))
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tprintf(", %#lx, %#lx, %#lx, %#lx",
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tcp->u_arg[1], tcp->u_arg[2],
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tcp->u_arg[3], tcp->u_arg[4]);
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}
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return 0;
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}
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@ -32,15 +32,12 @@
|
||||
#endif
|
||||
|
||||
/* still unfinished */
|
||||
#define sys_add_key printargs
|
||||
#define sys_ioperm printargs
|
||||
#define sys_iopl printargs
|
||||
#define sys_kcmp printargs
|
||||
#define sys_keyctl printargs
|
||||
#define sys_lookup_dcookie printargs
|
||||
#define sys_name_to_handle_at printargs
|
||||
#define sys_open_by_handle_at printargs
|
||||
#define sys_request_key printargs
|
||||
#define sys_sysfs printargs
|
||||
#define sys_vm86old printargs
|
||||
#define sys_vm86 printargs
|
||||
|
||||
61
linux/keyctl.h
Normal file
61
linux/keyctl.h
Normal file
@ -0,0 +1,61 @@
|
||||
/* keyctl.h: keyctl command IDs
|
||||
*
|
||||
* Copyright (C) 2004, 2008 Red Hat, Inc. All Rights Reserved.
|
||||
* Written by David Howells (dhowells@redhat.com)
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version
|
||||
* 2 of the License, or (at your option) any later version.
|
||||
*/
|
||||
|
||||
#ifndef _LINUX_KEYCTL_H
|
||||
#define _LINUX_KEYCTL_H
|
||||
|
||||
/* special process keyring shortcut IDs */
|
||||
#define KEY_SPEC_THREAD_KEYRING -1 /* - key ID for thread-specific keyring */
|
||||
#define KEY_SPEC_PROCESS_KEYRING -2 /* - key ID for process-specific keyring */
|
||||
#define KEY_SPEC_SESSION_KEYRING -3 /* - key ID for session-specific keyring */
|
||||
#define KEY_SPEC_USER_KEYRING -4 /* - key ID for UID-specific keyring */
|
||||
#define KEY_SPEC_USER_SESSION_KEYRING -5 /* - key ID for UID-session keyring */
|
||||
#define KEY_SPEC_GROUP_KEYRING -6 /* - key ID for GID-specific keyring */
|
||||
#define KEY_SPEC_REQKEY_AUTH_KEY -7 /* - key ID for assumed request_key auth key */
|
||||
#define KEY_SPEC_REQUESTOR_KEYRING -8 /* - key ID for request_key() dest keyring */
|
||||
|
||||
/* request-key default keyrings */
|
||||
#define KEY_REQKEY_DEFL_NO_CHANGE -1
|
||||
#define KEY_REQKEY_DEFL_DEFAULT 0
|
||||
#define KEY_REQKEY_DEFL_THREAD_KEYRING 1
|
||||
#define KEY_REQKEY_DEFL_PROCESS_KEYRING 2
|
||||
#define KEY_REQKEY_DEFL_SESSION_KEYRING 3
|
||||
#define KEY_REQKEY_DEFL_USER_KEYRING 4
|
||||
#define KEY_REQKEY_DEFL_USER_SESSION_KEYRING 5
|
||||
#define KEY_REQKEY_DEFL_GROUP_KEYRING 6
|
||||
#define KEY_REQKEY_DEFL_REQUESTOR_KEYRING 7
|
||||
|
||||
/* keyctl commands */
|
||||
#define KEYCTL_GET_KEYRING_ID 0 /* ask for a keyring's ID */
|
||||
#define KEYCTL_JOIN_SESSION_KEYRING 1 /* join or start named session keyring */
|
||||
#define KEYCTL_UPDATE 2 /* update a key */
|
||||
#define KEYCTL_REVOKE 3 /* revoke a key */
|
||||
#define KEYCTL_CHOWN 4 /* set ownership of a key */
|
||||
#define KEYCTL_SETPERM 5 /* set perms on a key */
|
||||
#define KEYCTL_DESCRIBE 6 /* describe a key */
|
||||
#define KEYCTL_CLEAR 7 /* clear contents of a keyring */
|
||||
#define KEYCTL_LINK 8 /* link a key into a keyring */
|
||||
#define KEYCTL_UNLINK 9 /* unlink a key from a keyring */
|
||||
#define KEYCTL_SEARCH 10 /* search for a key in a keyring */
|
||||
#define KEYCTL_READ 11 /* read a key or keyring's contents */
|
||||
#define KEYCTL_INSTANTIATE 12 /* instantiate a partially constructed key */
|
||||
#define KEYCTL_NEGATE 13 /* negate a partially constructed key */
|
||||
#define KEYCTL_SET_REQKEY_KEYRING 14 /* set default request-key keyring */
|
||||
#define KEYCTL_SET_TIMEOUT 15 /* set key timeout */
|
||||
#define KEYCTL_ASSUME_AUTHORITY 16 /* assume request_key() authorisation */
|
||||
#define KEYCTL_GET_SECURITY 17 /* get key security label */
|
||||
#define KEYCTL_SESSION_TO_PARENT 18 /* apply session keyring to parent process */
|
||||
#define KEYCTL_REJECT 19 /* reject a partially constructed key */
|
||||
#define KEYCTL_INSTANTIATE_IOV 20 /* instantiate a partially constructed key */
|
||||
#define KEYCTL_INVALIDATE 21 /* invalidate a key */
|
||||
#define KEYCTL_GET_PERSISTENT 22 /* get a user's persistent keyring */
|
||||
|
||||
#endif /* _LINUX_KEYCTL_H */
|
||||
@ -33,6 +33,7 @@
|
||||
int sys_accept();
|
||||
int sys_accept4();
|
||||
int sys_access();
|
||||
int sys_add_key();
|
||||
int sys_adjtimex();
|
||||
int sys_arch_prctl();
|
||||
int sys_bind();
|
||||
@ -124,6 +125,7 @@ int sys_ioctl();
|
||||
int sys_ioprio_get();
|
||||
int sys_ioprio_set();
|
||||
int sys_ipc();
|
||||
int sys_keyctl();
|
||||
int sys_kexec_load();
|
||||
int sys_kill();
|
||||
int sys_link();
|
||||
@ -203,6 +205,7 @@ int sys_recvmsg();
|
||||
int sys_remap_file_pages();
|
||||
int sys_removexattr();
|
||||
int sys_renameat();
|
||||
int sys_request_key();
|
||||
int sys_restart_syscall();
|
||||
int sys_rt_sigaction();
|
||||
int sys_rt_sigpending();
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user