mirror of
https://github.com/freebsd/freebsd-src
synced 2024-10-15 21:05:08 +00:00
socket tests: Add a regression test for ktrace+recv(MSG_TRUNC)
MFC after: 1 week
This commit is contained in:
parent
b5e7dbac75
commit
d8735eb7ac
|
@ -27,11 +27,13 @@
|
|||
|
||||
#include <sys/param.h>
|
||||
#include <sys/errno.h>
|
||||
#include <sys/ktrace.h>
|
||||
#include <sys/socket.h>
|
||||
#include <sys/un.h>
|
||||
|
||||
#include <netinet/in.h>
|
||||
|
||||
#include <fcntl.h>
|
||||
#include <poll.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
@ -182,12 +184,67 @@ ATF_TC_BODY(recv_trunc_afunix_seqpacket, tc)
|
|||
ATF_REQUIRE(close(ss) == 0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Exercise the case where ktrace was used to dump a truncated buffer.
|
||||
*/
|
||||
ATF_TC_WITHOUT_HEAD(recvmsg_trunc_ktrace_uio);
|
||||
ATF_TC_BODY(recvmsg_trunc_ktrace_uio, tc)
|
||||
{
|
||||
struct ktr_header ktr;
|
||||
struct msghdr msg;
|
||||
struct iovec iov;
|
||||
const char *tracepath;
|
||||
char buf[128];
|
||||
ssize_t nbytes;
|
||||
int error, fd, sd[2];
|
||||
|
||||
tracepath = "ktrace";
|
||||
|
||||
error = socketpair(AF_UNIX, SOCK_DGRAM, 0, sd);
|
||||
ATF_REQUIRE(error == 0);
|
||||
|
||||
memset(buf, 0, sizeof(buf));
|
||||
nbytes = send(sd[0], buf, sizeof(buf), 0);
|
||||
ATF_REQUIRE_MSG(nbytes >= 0, "send failed: %s", strerror(errno));
|
||||
ATF_REQUIRE((size_t)nbytes == sizeof(buf));
|
||||
|
||||
fd = open(tracepath, O_RDWR | O_CREAT | O_TRUNC, 0644);
|
||||
ATF_REQUIRE_MSG(fd >= 0, "open failed: %s", strerror(errno));
|
||||
error = ktrace(tracepath, KTROP_SET, KTRFAC_GENIO, getpid());
|
||||
ATF_REQUIRE_MSG(error == 0,
|
||||
"ktrace(SET) failed: %s", strerror(errno));
|
||||
|
||||
iov.iov_base = buf;
|
||||
iov.iov_len = sizeof(buf) - 1; /* truncate */
|
||||
memset(&msg, 0, sizeof(msg));
|
||||
msg.msg_iov = &iov;
|
||||
msg.msg_iovlen = 1;
|
||||
nbytes = recvmsg(sd[1], &msg, MSG_TRUNC);
|
||||
ATF_REQUIRE_MSG(nbytes >= 0, "recvmsg failed: %s", strerror(errno));
|
||||
ATF_REQUIRE((size_t)nbytes == sizeof(buf));
|
||||
ATF_REQUIRE((msg.msg_flags & MSG_TRUNC) != 0);
|
||||
|
||||
error = ktrace(tracepath, KTROP_CLEARFILE, 0, getpid());
|
||||
ATF_REQUIRE_MSG(error == 0,
|
||||
"ktrace(CLEARFILE) failed: %s", strerror(errno));
|
||||
|
||||
nbytes = read(fd, &ktr, sizeof(ktr));
|
||||
ATF_REQUIRE_MSG(nbytes >= 0, "read failed: %s", strerror(errno));
|
||||
ATF_REQUIRE((size_t)nbytes == sizeof(ktr));
|
||||
ATF_REQUIRE_MSG((ktr.ktr_type & ~KTR_TYPE) == KTR_GENIO);
|
||||
|
||||
ATF_REQUIRE(close(fd) == 0);
|
||||
ATF_REQUIRE(close(sd[0]) == 0);
|
||||
ATF_REQUIRE(close(sd[1]) == 0);
|
||||
}
|
||||
|
||||
ATF_TP_ADD_TCS(tp)
|
||||
{
|
||||
ATF_TP_ADD_TC(tp, recv_trunc_afinet_udp);
|
||||
ATF_TP_ADD_TC(tp, recv_trunc_afinet6_udp);
|
||||
ATF_TP_ADD_TC(tp, recv_trunc_afunix_dgram);
|
||||
ATF_TP_ADD_TC(tp, recv_trunc_afunix_seqpacket);
|
||||
ATF_TP_ADD_TC(tp, recvmsg_trunc_ktrace_uio);
|
||||
|
||||
return (atf_no_error());
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue