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audit(4): add tests for send, recv, sendto, and recvfrom

Browse Source 
Submitted by:	aniketp
MFC after:	2 weeks
Sponsored by:	Google, Inc. (GSoC 2018)
Differential Revision:	https://reviews.freebsd.org/D15869
This commit is contained in:
Alan Somers 2018-06-18 15:27:31 +00:00
parent 844fc5ebf1
commit 943f585c5a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=335319
1 changed files with 279 additions and 63 deletions
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342
tests/sys/audit/network.c
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@ -32,16 +32,20 @@
#include <atf-c.h>
#include <fcntl.h>
#include <stdarg.h>
#include <unistd.h>
#include "utils.h"
#define MAX_DATA 1024
#define SERVER_PATH "server"
static int sockfd, sockfd2;
static socklen_t len;
static int sockfd, sockfd2, connectfd;
static ssize_t data_bytes;
static struct pollfd fds[1];
static struct sockaddr_un server;
static char extregex[80];
static char data[MAX_DATA];
static socklen_t len = sizeof(struct sockaddr_un);
static char msgbuff[MAX_DATA] = "This message does not exist";
static const char *auclass = "nt";
static const char *nosupregex = "return,failure : Address family "
"not supported by protocol family";
@ -66,11 +70,11 @@ close_sockets(int count, ...)
* Assign local filesystem address to a Unix domain socket
*/
static void
assign_address(struct sockaddr_un *server)
assign_address(struct sockaddr_un *serveraddr)
{
memset(server, 0, sizeof(*server));
server->sun_family = AF_UNIX;
strcpy(server->sun_path, SERVER_PATH);
memset(serveraddr, 0, sizeof(*serveraddr));
serveraddr->sun_family = AF_UNIX;
strcpy(serveraddr->sun_path, SERVER_PATH);
}
@ -203,12 +207,10 @@ ATF_TC_HEAD(setsockopt_failure, tc)
ATF_TC_BODY(setsockopt_failure, tc)
{
int tr = 1;
snprintf(extregex, sizeof(extregex), "setsockopt.*%s", invalregex);
FILE *pipefd = setup(fds, auclass);
/* Failure reason: Invalid socket descriptor */
ATF_REQUIRE_EQ(-1, setsockopt(-1, SOL_SOCKET,
SO_REUSEADDR, &tr, sizeof(int)));
ATF_REQUIRE_EQ(-1, setsockopt(-1, SOL_SOCKET, 0, NULL, 0));
check_audit(fds, extregex, pipefd);
}
@ -227,10 +229,7 @@ ATF_TC_HEAD(bind_success, tc)
ATF_TC_BODY(bind_success, tc)
{
struct sockaddr_un server;
assign_address(&server);
len = sizeof(struct sockaddr_un);
/* Preliminary socket setup */
ATF_REQUIRE((sockfd = socket(PF_UNIX, SOCK_STREAM, 0)) != -1);
/* Check the presence of AF_UNIX address path in audit record */
@ -258,10 +257,7 @@ ATF_TC_HEAD(bind_failure, tc)
ATF_TC_BODY(bind_failure, tc)
{
/* Preliminary socket setup */
struct sockaddr_un server;
assign_address(&server);
len = sizeof(struct sockaddr_un);
/* Check the presence of AF_UNIX path in audit record */
snprintf(extregex, sizeof(extregex),
"bind.*%s.*return,failure", SERVER_PATH);
@ -287,10 +283,7 @@ ATF_TC_HEAD(bindat_success, tc)
ATF_TC_BODY(bindat_success, tc)
{
struct sockaddr_un server;
assign_address(&server);
len = sizeof(struct sockaddr_un);
/* Preliminary socket setup */
ATF_REQUIRE((sockfd = socket(PF_UNIX, SOCK_STREAM, 0)) != -1);
/* Check the presence of socket descriptor in audit record */
@ -319,10 +312,7 @@ ATF_TC_HEAD(bindat_failure, tc)
ATF_TC_BODY(bindat_failure, tc)
{
/* Preliminary socket setup */
struct sockaddr_un server;
assign_address(&server);
len = sizeof(struct sockaddr_un);
snprintf(extregex, sizeof(extregex), "bindat.*%s", invalregex);
FILE *pipefd = setup(fds, auclass);
@ -347,10 +337,7 @@ ATF_TC_HEAD(listen_success, tc)
ATF_TC_BODY(listen_success, tc)
{
struct sockaddr_un server;
assign_address(&server);
len = sizeof(struct sockaddr_un);
/* Preliminary socket setup */
ATF_REQUIRE((sockfd = socket(PF_UNIX, SOCK_STREAM, 0)) != -1);
ATF_REQUIRE_EQ(0, bind(sockfd, (struct sockaddr *)&server, len));
@ -401,14 +388,9 @@ ATF_TC_HEAD(connect_success, tc)
ATF_TC_BODY(connect_success, tc)
{
struct sockaddr_un server;
assign_address(&server);
len = sizeof(struct sockaddr_un);
/* Setup a non-blocking server socket */
ATF_REQUIRE((sockfd = socket(PF_UNIX,
SOCK_STREAM | SOCK_NONBLOCK, 0)) != -1);
/* Bind to the specified address and wait for connection */
/* Setup a server socket and bind to the specified address */
ATF_REQUIRE((sockfd = socket(PF_UNIX, SOCK_STREAM, 0)) != -1);
ATF_REQUIRE_EQ(0, bind(sockfd, (struct sockaddr *)&server, len));
ATF_REQUIRE_EQ(0, listen(sockfd, 1));
@ -442,11 +424,7 @@ ATF_TC_HEAD(connect_failure, tc)
ATF_TC_BODY(connect_failure, tc)
{
/* Preliminary socket setup */
struct sockaddr_un server;
assign_address(&server);
len = sizeof(struct sockaddr_un);
/* Audit record must contain AF_UNIX address path */
snprintf(extregex, sizeof(extregex),
"connect.*%s.*return,failure", SERVER_PATH);
@ -472,14 +450,9 @@ ATF_TC_HEAD(connectat_success, tc)
ATF_TC_BODY(connectat_success, tc)
{
struct sockaddr_un server;
assign_address(&server);
len = sizeof(struct sockaddr_un);
/* Setup a non-blocking server socket */
ATF_REQUIRE((sockfd = socket(PF_UNIX,
SOCK_STREAM | SOCK_NONBLOCK, 0)) != -1);
/* Bind to the specified address and wait for connection */
/* Setup a server socket and bind to the specified address */
ATF_REQUIRE((sockfd = socket(PF_UNIX, SOCK_STREAM, 0)) != -1);
ATF_REQUIRE_EQ(0, bind(sockfd, (struct sockaddr *)&server, len));
ATF_REQUIRE_EQ(0, listen(sockfd, 1));
@ -514,10 +487,7 @@ ATF_TC_HEAD(connectat_failure, tc)
ATF_TC_BODY(connectat_failure, tc)
{
/* Preliminary socket setup */
struct sockaddr_un server;
assign_address(&server);
len = sizeof(struct sockaddr_un);
snprintf(extregex, sizeof(extregex), "connectat.*%s", invalregex);
FILE *pipefd = setup(fds, auclass);
@ -542,15 +512,9 @@ ATF_TC_HEAD(accept_success, tc)
ATF_TC_BODY(accept_success, tc)
{
int clientfd;
struct sockaddr_un server;
assign_address(&server);
len = sizeof(struct sockaddr_un);
/* Setup a non-blocking server socket */
ATF_REQUIRE((sockfd = socket(PF_UNIX,
SOCK_STREAM | SOCK_NONBLOCK, 0)) != -1);
/* Bind to the specified address and wait for connection */
/* Setup a server socket and bind to the specified address */
ATF_REQUIRE((sockfd = socket(PF_UNIX, SOCK_STREAM, 0)) != -1);
ATF_REQUIRE_EQ(0, bind(sockfd, (struct sockaddr *)&server, len));
ATF_REQUIRE_EQ(0, listen(sockfd, 1));
@ -559,15 +523,15 @@ ATF_TC_BODY(accept_success, tc)
ATF_REQUIRE_EQ(0, connect(sockfd2, (struct sockaddr *)&server, len));
FILE *pipefd = setup(fds, auclass);
ATF_REQUIRE((clientfd = accept(sockfd, NULL, &len)) != -1);
ATF_REQUIRE((connectfd = accept(sockfd, NULL, &len)) != -1);
/* Audit record must contain clientfd & sockfd */
/* Audit record must contain connectfd & sockfd */
snprintf(extregex, sizeof(extregex),
"accept.*0x%x.*return,success,%d", sockfd, clientfd);
"accept.*0x%x.*return,success,%d", sockfd, connectfd);
check_audit(fds, extregex, pipefd);
/* Close all socket descriptors */
close_sockets(3, sockfd, sockfd2, clientfd);
close_sockets(3, sockfd, sockfd2, connectfd);
}
ATF_TC_CLEANUP(accept_success, tc)
@ -585,14 +549,10 @@ ATF_TC_HEAD(accept_failure, tc)
ATF_TC_BODY(accept_failure, tc)
{
/* Preliminary socket setup */
struct sockaddr_un client;
len = sizeof(struct sockaddr_un);
snprintf(extregex, sizeof(extregex), "accept.*%s", invalregex);
FILE *pipefd = setup(fds, auclass);
/* Failure reason: Invalid socket descriptor */
ATF_REQUIRE_EQ(-1, accept(-1, (struct sockaddr *)&client, &len));
ATF_REQUIRE_EQ(-1, accept(-1, NULL, NULL));
check_audit(fds, extregex, pipefd);
}
@ -602,6 +562,252 @@ ATF_TC_CLEANUP(accept_failure, tc)
}
ATF_TC_WITH_CLEANUP(send_success);
ATF_TC_HEAD(send_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"send(2) call");
}
ATF_TC_BODY(send_success, tc)
{
assign_address(&server);
/* Setup a server socket and bind to the specified address */
ATF_REQUIRE((sockfd = socket(PF_UNIX, SOCK_STREAM, 0)) != -1);
ATF_REQUIRE_EQ(0, bind(sockfd, (struct sockaddr *)&server, len));
ATF_REQUIRE_EQ(0, listen(sockfd, 1));
/* Set up "blocking" client and connect with non-blocking server */
ATF_REQUIRE((sockfd2 = socket(PF_UNIX, SOCK_STREAM, 0)) != -1);
ATF_REQUIRE_EQ(0, connect(sockfd2, (struct sockaddr *)&server, len));
ATF_REQUIRE((connectfd = accept(sockfd, NULL, &len)) != -1);
/* Send a sample message to the connected socket */
FILE *pipefd = setup(fds, auclass);
ATF_REQUIRE((data_bytes =
send(sockfd2, msgbuff, strlen(msgbuff), 0)) != -1);
/* Audit record must contain sockfd2 and data_bytes */
snprintf(extregex, sizeof(extregex),
"send.*0x%x.*return,success,%zd", sockfd2, data_bytes);
check_audit(fds, extregex, pipefd);
/* Close all socket descriptors */
close_sockets(3, sockfd, sockfd2, connectfd);
}
ATF_TC_CLEANUP(send_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(send_failure);
ATF_TC_HEAD(send_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"send(2) call");
}
ATF_TC_BODY(send_failure, tc)
{
snprintf(extregex, sizeof(extregex), "send.*%s", invalregex);
FILE *pipefd = setup(fds, auclass);
/* Failure reason: Invalid socket descriptor */
ATF_REQUIRE_EQ(-1, send(-1, NULL, 0, 0));
check_audit(fds, extregex, pipefd);
}
ATF_TC_CLEANUP(send_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(recv_success);
ATF_TC_HEAD(recv_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"recv(2) call");
}
ATF_TC_BODY(recv_success, tc)
{
assign_address(&server);
/* Setup a server socket and bind to the specified address */
ATF_REQUIRE((sockfd = socket(PF_UNIX, SOCK_STREAM, 0)) != -1);
ATF_REQUIRE_EQ(0, bind(sockfd, (struct sockaddr *)&server, len));
ATF_REQUIRE_EQ(0, listen(sockfd, 1));
/* Set up "blocking" client and connect with non-blocking server */
ATF_REQUIRE((sockfd2 = socket(PF_UNIX, SOCK_STREAM, 0)) != -1);
ATF_REQUIRE_EQ(0, connect(sockfd2, (struct sockaddr *)&server, len));
ATF_REQUIRE((connectfd = accept(sockfd, NULL, &len)) != -1);
/* Send a sample message to the connected socket */
ATF_REQUIRE(send(sockfd2, msgbuff, strlen(msgbuff), 0) != -1);
/* Receive data once connectfd is ready for reading */
FILE *pipefd = setup(fds, auclass);
//ATF_REQUIRE(check_readfs(connectfd) != 0);
ATF_REQUIRE((data_bytes = recv(connectfd, data, MAX_DATA, 0)) != 0);
/* Audit record must contain connectfd and data_bytes */
snprintf(extregex, sizeof(extregex),
"recv.*0x%x.*return,success,%zd", connectfd, data_bytes);
check_audit(fds, extregex, pipefd);
/* Close all socket descriptors */
close_sockets(3, sockfd, sockfd2, connectfd);
}
ATF_TC_CLEANUP(recv_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(recv_failure);
ATF_TC_HEAD(recv_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"recv(2) call");
}
ATF_TC_BODY(recv_failure, tc)
{
snprintf(extregex, sizeof(extregex), "recv.*%s", invalregex);
FILE *pipefd = setup(fds, auclass);
/* Failure reason: Invalid socket descriptor */
ATF_REQUIRE_EQ(-1, recv(-1, NULL, 0, 0));
check_audit(fds, extregex, pipefd);
}
ATF_TC_CLEANUP(recv_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(sendto_success);
ATF_TC_HEAD(sendto_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"sendto(2) call");
}
ATF_TC_BODY(sendto_success, tc)
{
assign_address(&server);
/* Setup a server socket and bind to the specified address */
ATF_REQUIRE((sockfd = socket(PF_UNIX, SOCK_DGRAM, 0)) != -1);
ATF_REQUIRE_EQ(0, bind(sockfd, (struct sockaddr *)&server, len));
/* Set up client socket to be used for sending the data */
ATF_REQUIRE((sockfd2 = socket(PF_UNIX, SOCK_DGRAM, 0)) != -1);
/* Send a sample message to server's address */
FILE *pipefd = setup(fds, auclass);
ATF_REQUIRE((data_bytes = sendto(sockfd2, msgbuff,
strlen(msgbuff), 0, (struct sockaddr *)&server, len)) != -1);
/* Audit record must contain sockfd2 and data_bytes */
snprintf(extregex, sizeof(extregex),
"sendto.*0x%x.*return,success,%zd", sockfd2, data_bytes);
check_audit(fds, extregex, pipefd);
/* Close all socket descriptors */
close_sockets(2, sockfd, sockfd2);
}
ATF_TC_CLEANUP(sendto_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(sendto_failure);
ATF_TC_HEAD(sendto_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"sendto(2) call");
}
ATF_TC_BODY(sendto_failure, tc)
{
snprintf(extregex, sizeof(extregex), "sendto.*%s", invalregex);
FILE *pipefd = setup(fds, auclass);
/* Failure reason: Invalid socket descriptor */
ATF_REQUIRE_EQ(-1, sendto(-1, NULL, 0, 0, NULL, 0));
check_audit(fds, extregex, pipefd);
}
ATF_TC_CLEANUP(sendto_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(recvfrom_success);
ATF_TC_HEAD(recvfrom_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"recvfrom(2) call");
}
ATF_TC_BODY(recvfrom_success, tc)
{
assign_address(&server);
/* Setup a server socket and bind to the specified address */
ATF_REQUIRE((sockfd = socket(PF_UNIX, SOCK_DGRAM, 0)) != -1);
ATF_REQUIRE_EQ(0, bind(sockfd, (struct sockaddr *)&server, len));
/* Set up client socket to be used for sending the data */
ATF_REQUIRE((sockfd2 = socket(PF_UNIX, SOCK_DGRAM, 0)) != -1);
ATF_REQUIRE(sendto(sockfd2, msgbuff, strlen(msgbuff), 0,
(struct sockaddr *)&server, len) != -1);
/* Receive data once sockfd is ready for reading */
FILE *pipefd = setup(fds, auclass);
ATF_REQUIRE((data_bytes = recvfrom(sockfd, data,
MAX_DATA, 0, NULL, &len)) != 0);
/* Audit record must contain sockfd and data_bytes */
snprintf(extregex, sizeof(extregex),
"recvfrom.*0x%x.*return,success,%zd", sockfd, data_bytes);
check_audit(fds, extregex, pipefd);
/* Close all socket descriptors */
close_sockets(2, sockfd, sockfd2);
}
ATF_TC_CLEANUP(recvfrom_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(recvfrom_failure);
ATF_TC_HEAD(recvfrom_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"recvfrom(2) call");
}
ATF_TC_BODY(recvfrom_failure, tc)
{
snprintf(extregex, sizeof(extregex), "recvfrom.*%s", invalregex);
FILE *pipefd = setup(fds, auclass);
/* Failure reason: Invalid socket descriptor */
ATF_REQUIRE_EQ(-1, recvfrom(-1, NULL, 0, 0, NULL, NULL));
check_audit(fds, extregex, pipefd);
}
ATF_TC_CLEANUP(recvfrom_failure, tc)
{
cleanup();
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, socket_success);
@ -625,5 +831,15 @@ ATF_TP_ADD_TCS(tp)
ATF_TP_ADD_TC(tp, accept_success);
ATF_TP_ADD_TC(tp, accept_failure);
ATF_TP_ADD_TC(tp, send_success);
ATF_TP_ADD_TC(tp, send_failure);
ATF_TP_ADD_TC(tp, recv_success);
ATF_TP_ADD_TC(tp, recv_failure);
ATF_TP_ADD_TC(tp, sendto_success);
ATF_TP_ADD_TC(tp, sendto_failure);
ATF_TP_ADD_TC(tp, recvfrom_success);
ATF_TP_ADD_TC(tp, recvfrom_failure);
return (atf_no_error());
}