You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
2.7 KiB
99 lines
2.7 KiB
9 months ago
|
This is a rewrite of the commit for the pre-64-bit time_t version of
|
||
|
|
the msgctl handling. Similar to semctl we want the RHEL8 handling of
|
||
|
|
the unknown commands to be the same as upstream.
|
||
|
|
|
||
|
|
commit be9b0b9a012780a403a266c90878efffb9a5f3ca
|
||
|
|
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
||
|
|
Date: Tue Sep 29 14:45:09 2020 -0300
|
||
|
|
|
||
|
|
sysvipc: Return EINVAL for invalid msgctl commands
|
||
|
|
|
||
|
|
It avoids regressions on possible future commands that might require
|
||
|
|
additional libc support. The downside is new commands added by newer
|
||
|
|
kernels will need further glibc support.
|
||
|
|
|
||
|
|
Checked on x86_64-linux-gnu and i686-linux-gnu (Linux v4.15 and v5.4).
|
||
|
|
|
||
|
|
diff --git a/sysdeps/unix/sysv/linux/msgctl.c b/sysdeps/unix/sysv/linux/msgctl.c
|
||
|
|
index 7280cba31a8815a2..6a2c79d188b875b9 100644
|
||
|
|
--- a/sysdeps/unix/sysv/linux/msgctl.c
|
||
|
|
+++ b/sysdeps/unix/sysv/linux/msgctl.c
|
||
|
|
@@ -29,6 +29,20 @@
|
||
|
|
int
|
||
|
|
__new_msgctl (int msqid, int cmd, struct msqid_ds *buf)
|
||
|
|
{
|
||
|
|
+ switch (cmd)
|
||
|
|
+ {
|
||
|
|
+ case IPC_RMID:
|
||
|
|
+ case IPC_SET:
|
||
|
|
+ case IPC_STAT:
|
||
|
|
+ case MSG_STAT:
|
||
|
|
+ case MSG_STAT_ANY:
|
||
|
|
+ case IPC_INFO:
|
||
|
|
+ case MSG_INFO:
|
||
|
|
+ break;
|
||
|
|
+ default:
|
||
|
|
+ __set_errno (EINVAL);
|
||
|
|
+ return -1;
|
||
|
|
+ }
|
||
|
|
#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
|
||
|
|
return INLINE_SYSCALL_CALL (msgctl, msqid, cmd | __IPC_64, buf);
|
||
|
|
#else
|
||
|
|
diff --git a/sysvipc/test-sysvipc.h b/sysvipc/test-sysvipc.h
|
||
|
|
index ed0057b7871e505c..133fb71c6113a2b5 100644
|
||
|
|
--- a/sysvipc/test-sysvipc.h
|
||
|
|
+++ b/sysvipc/test-sysvipc.h
|
||
|
|
@@ -134,4 +134,29 @@ first_shm_invalid_cmd (void)
|
||
|
|
return invalid;
|
||
|
|
}
|
||
|
|
|
||
|
|
+/* Return the first invalid command SysV IPC command for message queue. */
|
||
|
|
+static inline int
|
||
|
|
+first_msg_invalid_cmd (void)
|
||
|
|
+{
|
||
|
|
+ const int msg_cmds[] = {
|
||
|
|
+ MSG_STAT,
|
||
|
|
+ MSG_INFO,
|
||
|
|
+#ifdef MSG_STAT_ANY
|
||
|
|
+ MSG_STAT_ANY,
|
||
|
|
+#endif
|
||
|
|
+ };
|
||
|
|
+
|
||
|
|
+ int invalid = first_common_invalid_cmd ();
|
||
|
|
+ for (int i = 0; i < array_length (msg_cmds); i++)
|
||
|
|
+ {
|
||
|
|
+ if (invalid == msg_cmds[i])
|
||
|
|
+ {
|
||
|
|
+ invalid++;
|
||
|
|
+ i = 0;
|
||
|
|
+ }
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ return invalid;
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
#endif /* _TEST_SYSV_H */
|
||
|
|
diff --git a/sysvipc/test-sysvmsg.c b/sysvipc/test-sysvmsg.c
|
||
|
|
index 1e0471807cd26da1..74a907ad39ee114e 100644
|
||
|
|
--- a/sysvipc/test-sysvmsg.c
|
||
|
|
+++ b/sysvipc/test-sysvmsg.c
|
||
|
|
@@ -24,6 +24,8 @@
|
||
|
|
#include <sys/ipc.h>
|
||
|
|
#include <sys/msg.h>
|
||
|
|
|
||
|
|
+#include <test-sysvipc.h>
|
||
|
|
+
|
||
|
|
#include <support/support.h>
|
||
|
|
#include <support/check.h>
|
||
|
|
#include <support/temp_file.h>
|
||
|
|
@@ -86,6 +88,9 @@ do_test (void)
|
||
|
|
FAIL_EXIT1 ("msgget failed (errno=%d)", errno);
|
||
|
|
}
|
||
|
|
|
||
|
|
+ TEST_COMPARE (msgctl (msqid, first_msg_invalid_cmd (), NULL), -1);
|
||
|
|
+ TEST_COMPARE (errno, EINVAL);
|
||
|
|
+
|
||
|
|
/* Get message queue kernel information and do some sanity checks. */
|
||
|
|
struct msqid_ds msginfo;
|
||
|
|
if (msgctl (msqid, IPC_STAT, &msginfo) == -1)
|