** Description changed:
Since updating to the 4.4.0-2 kernel recvmsg() fails SCM_CREDENTIALS
request with EOPNOTSUPP.
This manifests as a test failure in Mir:
[ RUN ] PromptSessionClientAPI.client_pid_is_associated_with_session
unknown file: Failure
Test case:
#include <stdlib.h>
#include <stdio.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <assert.h>
#include <errno.h>
#include <string.h>
int main()
{
- enum { server, client, size };
- int socket_fd[size];
- int const opt = 1;
+ enum { server, client, size };
+ int socket_fd[size];
+ int const opt = 1;
- assert(socketpair(AF_LOCAL, SOCK_STREAM, 0, socket_fd) == 0);
+ assert(socketpair(AF_LOCAL, SOCK_STREAM, 0, socket_fd) == 0);
- char const msg[] = "A random message";
- send(socket_fd[client], msg, sizeof msg, MSG_DONTWAIT | MSG_NOSIGNAL);
+ char const msg[] = "A random message";
+ send(socket_fd[client], msg, sizeof msg, MSG_DONTWAIT | MSG_NOSIGNAL);
- assert(setsockopt(socket_fd[server], SOL_SOCKET, SO_PASSCRED, &opt,
+ assert(setsockopt(socket_fd[server], SOL_SOCKET, SO_PASSCRED, &opt,
sizeof(opt)) != -1);
- union {
- struct cmsghdr cmh;
- char control[CMSG_SPACE(sizeof(ucred))];
- } control_un;
+ union {
+ struct cmsghdr cmh;
+ char control[CMSG_SPACE(sizeof(ucred))];
+ } control_un;
- control_un.cmh.cmsg_len = CMSG_LEN(sizeof(ucred));
- control_un.cmh.cmsg_level = SOL_SOCKET;
- control_un.cmh.cmsg_type = SCM_CREDENTIALS;
+ control_un.cmh.cmsg_len = CMSG_LEN(sizeof(ucred));
+ control_un.cmh.cmsg_level = SOL_SOCKET;
+ control_un.cmh.cmsg_type = SCM_CREDENTIALS;
- msghdr msgh;
- msgh.msg_name = NULL;
- msgh.msg_namelen = 0;
- msgh.msg_iov = NULL;
- msgh.msg_iovlen = 0;
- msgh.msg_control = control_un.control;
- msgh.msg_controllen = sizeof(control_un.control);
+ msghdr msgh;
+ msgh.msg_name = NULL;
+ msgh.msg_namelen = 0;
+ msgh.msg_iov = NULL;
+ msgh.msg_iovlen = 0;
+ msgh.msg_control = control_un.control;
+ msgh.msg_controllen = sizeof(control_un.control);
- errno = 0;
+ errno = 0;
- if (recvmsg(socket_fd[server], &msgh, MSG_PEEK) == -1)
- {
- printf("Error: %s\n", strerror(errno));
- exit(EXIT_FAILURE);
- }
- else
- {
- printf("Success!\n");
- exit(EXIT_SUCCESS);
- }
+ if (recvmsg(socket_fd[server], &msgh, MSG_PEEK) == -1)
+ {
+ printf("Error: %s\n", strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+ else
+ {
+ printf("Success!\n");
+ exit(EXIT_SUCCESS);
+ }
}
+
+ ===
+ Kernel-Description: recvmsg() fails SCM_CREDENTIALS request with EOPNOTSUPP.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1540731
Title:
SocketMessenger::update_session_creds() fails to get client PID,
causing "[ FAILED ]
PromptSessionClientAPI.client_pid_is_associated_with_session" on
kernel 4.4 (but kernel 4.3 works)
To manage notifications about this bug go to:
https://bugs.launchpad.net/glibc/+bug/1540731/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
