Date: Mon, 29 Apr 2013 21:30:05 +0000 (UTC) From: Sergey Kandaurov <pluknet@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r250076 - stable/9/tools/regression/sockets/unix_cmsg Message-ID: <201304292130.r3TLU5GL096293@svn.freebsd.org>
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Author: pluknet Date: Mon Apr 29 21:30:04 2013 New Revision: 250076 URL: http://svnweb.freebsd.org/changeset/base/250076 Log: MFC r243314: Zero the whole struct not just the size of a pointer. MFC r246670: Major update for unix_cmsg. PR: bin/131567 Submitted by: Andrey Simonenko <simon@comsys.ntu-kpi.kiev.ua> Modified: stable/9/tools/regression/sockets/unix_cmsg/README stable/9/tools/regression/sockets/unix_cmsg/unix_cmsg.c stable/9/tools/regression/sockets/unix_cmsg/unix_cmsg.t Directory Properties: stable/9/tools/regression/sockets/ (props changed) Modified: stable/9/tools/regression/sockets/unix_cmsg/README ============================================================================== --- stable/9/tools/regression/sockets/unix_cmsg/README Mon Apr 29 21:12:25 2013 (r250075) +++ stable/9/tools/regression/sockets/unix_cmsg/README Mon Apr 29 21:30:04 2013 (r250076) @@ -1,127 +1,160 @@ $FreeBSD$ About unix_cmsg -================ +=============== -This program is a collection of regression tests for ancillary (control) -data for PF_LOCAL sockets (local domain or Unix domain sockets). There -are tests for stream and datagram sockets. - -Usually each test does following steps: create Server, fork Client, -Client sends something to Server, Server verifies if everything -is correct in received message. Sometimes Client sends several -messages to Server. +This program is a collection of regression tests for ancillary data +(control information) for PF_LOCAL sockets (local domain or Unix domain +sockets). There are tests for stream and datagram sockets. + +Usually each test does following steps: creates Server, forks Client, +Client sends something to Server, Server verifies whether everything is +correct in received message(s). It is better to change the owner of unix_cmsg to some safe user -(eg. nobody:nogroup) and set SUID and SGID bits, else some tests -can give correct results for wrong implementation. +(eg. nobody:nogroup) and set SUID and SGID bits, else some tests that +check credentials can give correct results for wrong implementation. + +It is better to run this program by a user that belongs to more +than 16 groups. Available options ================= --d Output debugging information, values of different fields of - received messages, etc. Will produce many lines of information. - --h Output help message and exit. - --t <socktype> - Run tests only for the given socket type: "stream" or "dgram". - With this option it is possible to run only particular test, - not all of them. - --z Do not send real control data if possible. Struct cmsghdr{} - should be followed by real control data. It is not clear if - a sender should give control data in all cases (this is not - documented and an arbitrary application can choose anything). - - At least for PF_LOCAL sockets' control messages with types - SCM_CREDS and SCM_TIMESTAMP the kernel does not need any - control data. This option allow to not send real control data - for SCM_CREDS and SCM_TIMESTAMP control messages. +usage: unix_cmsg [-dh] [-n num] [-s size] [-t type] [-z value] [testno] -Description of tests -==================== + Options are: + -d Output debugging information + -h Output the help message and exit + -n num Number of messages to send + -s size Specify size of data for IPC + -t type Specify socket type (stream, dgram) for tests + -z value Do not send data in a message (bit 0x1), do not send + data array associated with a cmsghdr structure (bit 0x2) + testno Run one test by its number (require the -t option) + +Description +=========== + +If Client sends something to Server, then it sends 5 messages by default. +Number of messages can be changed in the -n command line option. Number +of messages will be given as N in the following descriptions. + +If Client sends something to Server, then it sends some data (few bytes) +in each message by default. The size of this data can be changed by the -s +command line option. The "-s 0" command line option means, that Client will +send zero bytes represented by { NULL, 0 } value of struct iovec{}, referenced +by the msg_iov field from struct msghdr{}. The "-z 1" or "-z 3" command line +option means, that Client will send zero bytes represented by the NULL value +in the msg_iov field from struct msghdr{}. + +If Client sends some ancillary data object, then this ancillary data object +always has associated data array by default. The "-z 2" or "-z 3" option +means, that Client will not send associated data array if possible. For SOCK_STREAM sockets: ----------------------- 1: Sending, receiving cmsgcred - Client connects to Server and sends two messages with data and - control message with SCM_CREDS type to Server. Server should - receive two messages, in both messages there should be data and - control message with SCM_CREDS type followed by struct cmsgcred{} - and this structure should contain correct information. - - 2: Receiving sockcred (listening socket has LOCAL_CREDS) - - Server creates listen socket and set socket option LOCAL_CREDS - for it. Client connects to Server and sends two messages with data - to Server. Server should receive two messages, in first message - there should be data and control message with SCM_CREDS type followed - by struct sockcred{} and this structure should contain correct - information, in second message there should be data and no control - message. - - 3: Receiving sockcred (accepted socket has LOCAL_CREDS) - - Client connects to Server and sends two messages with data. Server - accepts connection and set socket option LOCAL_CREDS for just accepted - socket (here synchronization is used, to allow Client to see just set - flag on Server's socket before sending messages to Server). Server - should receive two messages, in first message there should be data and - control message with SOCK_CRED type followed by struct sockcred{} and - this structure should contain correct information, in second message - there should be data and no control message. + Client connects to Server and sends N messages with SCM_CREDS ancillary + data object. Server should receive N messages, each message should + have SCM_CREDS ancillary data object followed by struct cmsgcred{}. + + 2: Receiving sockcred (listening socket) + + Server creates a listening stream socket and sets the LOCAL_CREDS + socket option for it. Client connects to Server two times, each time + it sends N messages. Server accepts two connections and receives N + messages from each connection. The first message from each connection + should have SCM_CREDS ancillary data object followed by struct sockcred{}, + next messages from the same connection should not have ancillary data. + + 3: Receiving sockcred (accepted socket) + + Client connects to Server. Server accepts connection and sets the + LOCAL_CREDS socket option for just accepted socket. Client sends N + messages to Server. Server should receive N messages, the first + message should have SCM_CREDS ancillary data object followed by + struct sockcred{}, next messages should not have ancillary data. 4: Sending cmsgcred, receiving sockcred - Server creates listen socket and set socket option LOCAL_CREDS - for it. Client connects to Server and sends one message with data - and control message with SCM_CREDS type to Server. Server should - receive one message with data and control message with SCM_CREDS type - followed by struct sockcred{} and this structure should contain - correct information. - - 5: Sending, receiving timestamp - - Client connects to Server and sends message with data and control - message with SCM_TIMESTAMP type to Server. Server should receive - message with data and control message with SCM_TIMESTAMP type - followed by struct timeval{}. + Server creates a listening stream socket and sets the LOCAL_CREDS + socket option for it. Client connects to Server and sends N messages + with SCM_CREDS ancillary data object. Server should receive N messages, + the first message should have SCM_CREDS ancillary data object followed + by struct sockcred{}, each of next messages should have SCM_CREDS + ancillary data object followed by struct cmsgcred{}. + + 5: Sending, receiving timeval + + Client connects to Server and sends message with SCM_TIMESTAMP ancillary + data object. Server should receive one message with SCM_TIMESTAMP + ancillary data object followed by struct timeval{}. + + 6: Sending, receiving bintime + + Client connects to Server and sends message with SCM_BINTIME ancillary + data object. Server should receive one message with SCM_BINTIME + ancillary data object followed by struct bintime{}. + + 7: Checking cmsghdr.cmsg_len + + Client connects to Server and tries to send several messages with + SCM_CREDS ancillary data object that has wrong cmsg_len field in its + struct cmsghdr{}. All these attempts should fail, since cmsg_len + in all requests is less than CMSG_LEN(0). + + 8: Check LOCAL_PEERCRED socket option + + This test does not use ancillary data, but can be implemented here. + Client connects to Server. Both Client and Server verify that + credentials of the peer are correct using LOCAL_PEERCRED socket option. For SOCK_DGRAM sockets: ---------------------- 1: Sending, receiving cmsgcred - Client sends to Server two messages with data and control message - with SCM_CREDS type to Server. Server should receive two messages, - in both messages there should be data and control message with - SCM_CREDS type followed by struct cmsgcred{} and this structure - should contain correct information. + Client connects to Server and sends N messages with SCM_CREDS ancillary + data object. Server should receive N messages, each message should + have SCM_CREDS ancillary data object followed by struct cmsgcred{}. 2: Receiving sockcred - Server creates datagram socket and set socket option LOCAL_CREDS - for it. Client sends two messages with data to Server. Server should - receive two messages, in both messages there should be data and control - message with SCM_CREDS type followed by struct sockcred{} and this - structure should contain correct information. + Server creates datagram socket and sets the LOCAL_CREDS socket option + for it. Client sends N messages to Server. Server should receive N + messages, each message should have SCM_CREDS ancillary data object + followed by struct sockcred{}. 3: Sending cmsgcred, receiving sockcred - - Server creates datagram socket and set socket option LOCAL_CREDS - for it. Client sends one message with data and control message with - SOCK_CREDS type to Server. Server should receive one message with - data and control message with SCM_CREDS type followed by struct - sockcred{} and this structure should contain correct information. - - 4: Sending, receiving timestamp - - Client sends message with data and control message with SCM_TIMESTAMP - type to Server. Server should receive message with data and control - message with SCM_TIMESTAMP type followed by struct timeval{}. + + Server creates datagram socket and sets the LOCAL_CREDS socket option + for it. Client sends N messages with SCM_CREDS ancillary data object + to Server. Server should receive N messages, the first message should + have SCM_CREDS ancillary data object followed by struct sockcred{}, + each of next messages should have SCM_CREDS ancillary data object + followed by struct cmsgcred{}. + + 4: Sending, receiving timeval + + Client sends one message with SCM_TIMESTAMP ancillary data object + to Server. Server should receive one message with SCM_TIMESTAMP + ancillary data object followed by struct timeval{}. + + 5: Sending, receiving bintime + + Client sends one message with SCM_BINTIME ancillary data object + to Server. Server should receive one message with SCM_BINTIME + ancillary data object followed by struct bintime{}. + + 6: Checking cmsghdr.cmsg_len + + Client tries to send Server several messages with SCM_CREDS ancillary + data object that has wrong cmsg_len field in its struct cmsghdr{}. + All these attempts should fail, since cmsg_len in all requests is less + than CMSG_LEN(0). - Andrey Simonenko -simon@comsys.ntu-kpi.kiev.ua +andreysimonenko@users.sourceforge.net Modified: stable/9/tools/regression/sockets/unix_cmsg/unix_cmsg.c ============================================================================== --- stable/9/tools/regression/sockets/unix_cmsg/unix_cmsg.c Mon Apr 29 21:12:25 2013 (r250075) +++ stable/9/tools/regression/sockets/unix_cmsg/unix_cmsg.c Mon Apr 29 21:30:04 2013 (r250076) @@ -27,48 +27,46 @@ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); -#include <sys/types.h> +#include <sys/param.h> #include <sys/resource.h> #include <sys/time.h> +#include <sys/select.h> #include <sys/socket.h> +#include <sys/ucred.h> #include <sys/un.h> #include <sys/wait.h> -#include <assert.h> #include <ctype.h> #include <err.h> #include <errno.h> +#include <fcntl.h> #include <inttypes.h> #include <limits.h> -#include <setjmp.h> +#include <paths.h> #include <signal.h> #include <stdarg.h> +#include <stdbool.h> #include <stdint.h> #include <stdio.h> #include <stdlib.h> #include <string.h> -#include <sysexits.h> #include <unistd.h> /* * There are tables with tests descriptions and pointers to test * functions. Each t_*() function returns 0 if its test passed, - * -1 if its test failed (something wrong was found in local domain - * control messages), -2 if some system error occurred. If test - * function returns -2, then a program exits. + * -1 if its test failed, -2 if some system error occurred. + * If a test function returns -2, then a program exits. * - * Each test function completely control what to do (eg. fork or - * do not fork a client process). If a test function forks a client - * process, then it waits for its termination. If a return code of a - * client process is not equal to zero, or if a client process was - * terminated by a signal, then test function returns -2. + * If a test function forks a client process, then it waits for its + * termination. If a return code of a client process is not equal + * to zero, or if a client process was terminated by a signal, then + * a test function returns -1 or -2 depending on exit status of + * a client process. * - * Each test function and complete program are not optimized - * a lot to allow easy to modify tests. - * - * Each function which can block, is run under TIMEOUT, if timeout - * occurs, then test function returns -2 or a client process exits - * with nonzero return code. + * Each function which can block, is run under TIMEOUT. If timeout + * occurs, then a test function returns -2 or a client process exits + * with a non-zero return code. */ #ifndef LISTENQ @@ -76,207 +74,290 @@ __FBSDID("$FreeBSD$"); #endif #ifndef TIMEOUT -# define TIMEOUT 60 +# define TIMEOUT 2 #endif -#define EXTRA_CMSG_SPACE 512 /* Memory for not expected control data. */ - -static int t_cmsgcred(void), t_sockcred_stream1(void); -static int t_sockcred_stream2(void), t_cmsgcred_sockcred(void); -static int t_sockcred_dgram(void), t_timestamp(void); +static int t_cmsgcred(void); +static int t_sockcred_1(void); +static int t_sockcred_2(void); +static int t_cmsgcred_sockcred(void); +static int t_timeval(void); +static int t_bintime(void); +static int t_cmsg_len(void); +static int t_peercred(void); struct test_func { - int (*func)(void); /* Pointer to function. */ - const char *desc; /* Test description. */ -}; - -static struct test_func test_stream_tbl[] = { - { NULL, " 0: All tests" }, - { t_cmsgcred, " 1: Sending, receiving cmsgcred" }, - { t_sockcred_stream1, " 2: Receiving sockcred (listening socket has LOCAL_CREDS)" }, - { t_sockcred_stream2, " 3: Receiving sockcred (accepted socket has LOCAL_CREDS)" }, - { t_cmsgcred_sockcred, " 4: Sending cmsgcred, receiving sockcred" }, - { t_timestamp, " 5: Sending, receiving timestamp" }, - { NULL, NULL } + int (*func)(void); + const char *desc; }; -static struct test_func test_dgram_tbl[] = { - { NULL, " 0: All tests" }, - { t_cmsgcred, " 1: Sending, receiving cmsgcred" }, - { t_sockcred_dgram, " 2: Receiving sockcred" }, - { t_cmsgcred_sockcred, " 3: Sending cmsgcred, receiving sockcred" }, - { t_timestamp, " 4: Sending, receiving timestamp" }, - { NULL, NULL } +static const struct test_func test_stream_tbl[] = { + { + .func = NULL, + .desc = "All tests" + }, + { + .func = t_cmsgcred, + .desc = "Sending, receiving cmsgcred" + }, + { + .func = t_sockcred_1, + .desc = "Receiving sockcred (listening socket)" + }, + { + .func = t_sockcred_2, + .desc = "Receiving sockcred (accepted socket)" + }, + { + .func = t_cmsgcred_sockcred, + .desc = "Sending cmsgcred, receiving sockcred" + }, + { + .func = t_timeval, + .desc = "Sending, receiving timeval" + }, + { + .func = t_bintime, + .desc = "Sending, receiving bintime" + }, + { + .func = t_cmsg_len, + .desc = "Check cmsghdr.cmsg_len" + }, + { + .func = t_peercred, + .desc = "Check LOCAL_PEERCRED socket option" + } }; -#define TEST_STREAM_NO_MAX (sizeof(test_stream_tbl) / sizeof(struct test_func) - 2) -#define TEST_DGRAM_NO_MAX (sizeof(test_dgram_tbl) / sizeof(struct test_func) - 2) - -static const char *myname = "SERVER"; /* "SERVER" or "CLIENT" */ - -static int debug = 0; /* 1, if -d. */ -static int no_control_data = 0; /* 1, if -z. */ - -static u_int nfailed = 0; /* Number of failed tests. */ +#define TEST_STREAM_TBL_SIZE \ + (sizeof(test_stream_tbl) / sizeof(test_stream_tbl[0])) -static int sock_type; /* SOCK_STREAM or SOCK_DGRAM */ -static const char *sock_type_str; /* "SOCK_STREAM" or "SOCK_DGRAN" */ - -static char tempdir[] = "/tmp/unix_cmsg.XXXXXXX"; -static char serv_sock_path[PATH_MAX]; - -static char ipc_message[] = "hello"; - -#define IPC_MESSAGE_SIZE (sizeof(ipc_message)) - -static struct sockaddr_un servaddr; /* Server address. */ - -static sigjmp_buf env_alrm; +static const struct test_func test_dgram_tbl[] = { + { + .func = NULL, + .desc = "All tests" + }, + { + .func = t_cmsgcred, + .desc = "Sending, receiving cmsgcred" + }, + { + .func = t_sockcred_2, + .desc = "Receiving sockcred" + }, + { + .func = t_cmsgcred_sockcred, + .desc = "Sending cmsgcred, receiving sockcred" + }, + { + .func = t_timeval, + .desc = "Sending, receiving timeval" + }, + { + .func = t_bintime, + .desc = "Sending, receiving bintime" + }, + { + .func = t_cmsg_len, + .desc = "Check cmsghdr.cmsg_len" + } +}; -static uid_t my_uid; -static uid_t my_euid; -static gid_t my_gid; -static gid_t my_egid; +#define TEST_DGRAM_TBL_SIZE \ + (sizeof(test_dgram_tbl) / sizeof(test_dgram_tbl[0])) -/* - * my_gids[0] is EGID, next items are supplementary GIDs, - * my_ngids determines valid items in my_gids array. - */ -static gid_t my_gids[NGROUPS_MAX]; -static int my_ngids; +static bool debug = false; +static bool server_flag = true; +static bool send_data_flag = true; +static bool send_array_flag = true; +static bool failed_flag = false; + +static int sock_type; +static const char *sock_type_str; + +static const char *proc_name; + +static char work_dir[] = _PATH_TMP "unix_cmsg.XXXXXXX"; +static int serv_sock_fd; +static struct sockaddr_un serv_addr_sun; + +static struct { + char *buf_send; + char *buf_recv; + size_t buf_size; + u_int msg_num; +} ipc_msg; + +#define IPC_MSG_NUM_DEF 5 +#define IPC_MSG_NUM_MAX 10 +#define IPC_MSG_SIZE_DEF 7 +#define IPC_MSG_SIZE_MAX 128 + +static struct { + uid_t uid; + uid_t euid; + gid_t gid; + gid_t egid; + gid_t *gid_arr; + int gid_num; +} proc_cred; + +static pid_t client_pid; + +#define SYNC_SERVER 0 +#define SYNC_CLIENT 1 +#define SYNC_RECV 0 +#define SYNC_SEND 1 -static pid_t client_pid; /* PID of forked client. */ +static int sync_fd[2][2]; -#define dbgmsg(x) do { \ - if (debug) \ - logmsgx x ; \ -} while (/* CONSTCOND */0) +#define LOGMSG_SIZE 128 static void logmsg(const char *, ...) __printflike(1, 2); static void logmsgx(const char *, ...) __printflike(1, 2); +static void dbgmsg(const char *, ...) __printflike(1, 2); static void output(const char *, ...) __printflike(1, 2); -extern char *__progname; /* The name of program. */ - -/* - * Output the help message (-h switch). - */ static void -usage(int quick) +usage(bool verbose) { - const struct test_func *test_func; + u_int i; - fprintf(stderr, "Usage: %s [-dhz] [-t <socktype>] [testno]\n", - __progname); - if (quick) + printf("usage: %s [-dh] [-n num] [-s size] [-t type] " + "[-z value] [testno]\n", getprogname()); + if (!verbose) return; - fprintf(stderr, "\n Options are:\n\ - -d\t\t\tOutput debugging information\n\ - -h\t\t\tOutput this help message and exit\n\ - -t <socktype>\t\tRun test only for the given socket type:\n\ -\t\t\tstream or dgram\n\ - -z\t\t\tDo not send real control data if possible\n\n"); - fprintf(stderr, " Available tests for stream sockets:\n"); - for (test_func = test_stream_tbl; test_func->desc != NULL; ++test_func) - fprintf(stderr, " %s\n", test_func->desc); - fprintf(stderr, "\n Available tests for datagram sockets:\n"); - for (test_func = test_dgram_tbl; test_func->desc != NULL; ++test_func) - fprintf(stderr, " %s\n", test_func->desc); + printf("\n Options are:\n\ + -d Output debugging information\n\ + -h Output the help message and exit\n\ + -n num Number of messages to send\n\ + -s size Specify size of data for IPC\n\ + -t type Specify socket type (stream, dgram) for tests\n\ + -z value Do not send data in a message (bit 0x1), do not send\n\ + data array associated with a cmsghdr structure (bit 0x2)\n\ + testno Run one test by its number (require the -t option)\n\n"); + printf(" Available tests for stream sockets:\n"); + for (i = 0; i < TEST_STREAM_TBL_SIZE; ++i) + printf(" %u: %s\n", i, test_stream_tbl[i].desc); + printf("\n Available tests for datagram sockets:\n"); + for (i = 0; i < TEST_DGRAM_TBL_SIZE; ++i) + printf(" %u: %s\n", i, test_dgram_tbl[i].desc); } -/* - * printf-like function for outputting to STDOUT_FILENO. - */ static void output(const char *format, ...) { - char buf[128]; + char buf[LOGMSG_SIZE]; va_list ap; va_start(ap, format); if (vsnprintf(buf, sizeof(buf), format, ap) < 0) - err(EX_SOFTWARE, "output: vsnprintf failed"); + err(EXIT_FAILURE, "output: vsnprintf failed"); write(STDOUT_FILENO, buf, strlen(buf)); va_end(ap); } -/* - * printf-like function for logging, also outputs message for errno. - */ static void logmsg(const char *format, ...) { - char buf[128]; + char buf[LOGMSG_SIZE]; va_list ap; int errno_save; - errno_save = errno; /* Save errno. */ - + errno_save = errno; va_start(ap, format); if (vsnprintf(buf, sizeof(buf), format, ap) < 0) - err(EX_SOFTWARE, "logmsg: vsnprintf failed"); + err(EXIT_FAILURE, "logmsg: vsnprintf failed"); if (errno_save == 0) - output("%s: %s\n", myname, buf); + output("%s: %s\n", proc_name, buf); else - output("%s: %s: %s\n", myname, buf, strerror(errno_save)); + output("%s: %s: %s\n", proc_name, buf, strerror(errno_save)); va_end(ap); + errno = errno_save; +} + +static void +vlogmsgx(const char *format, va_list ap) +{ + char buf[LOGMSG_SIZE]; + + if (vsnprintf(buf, sizeof(buf), format, ap) < 0) + err(EXIT_FAILURE, "logmsgx: vsnprintf failed"); + output("%s: %s\n", proc_name, buf); - errno = errno_save; /* Restore errno. */ } -/* - * printf-like function for logging, do not output message for errno. - */ static void logmsgx(const char *format, ...) { - char buf[128]; va_list ap; va_start(ap, format); - if (vsnprintf(buf, sizeof(buf), format, ap) < 0) - err(EX_SOFTWARE, "logmsgx: vsnprintf failed"); - output("%s: %s\n", myname, buf); + vlogmsgx(format, ap); va_end(ap); } -/* - * Run tests from testno1 to testno2. - */ +static void +dbgmsg(const char *format, ...) +{ + va_list ap; + + if (debug) { + va_start(ap, format); + vlogmsgx(format, ap); + va_end(ap); + } +} + static int -run_tests(u_int testno1, u_int testno2) +run_tests(int type, u_int testno1) { - const struct test_func *test_func; - u_int i, nfailed1; + const struct test_func *tf; + u_int i, testno2, failed_num; - output("Running tests for %s sockets:\n", sock_type_str); - test_func = (sock_type == SOCK_STREAM ? - test_stream_tbl : test_dgram_tbl) + testno1; + sock_type = type; + if (type == SOCK_STREAM) { + sock_type_str = "SOCK_STREAM"; + tf = test_stream_tbl; + i = TEST_STREAM_TBL_SIZE - 1; + } else { + sock_type_str = "SOCK_DGRAM"; + tf = test_dgram_tbl; + i = TEST_DGRAM_TBL_SIZE - 1; + } + if (testno1 == 0) { + testno1 = 1; + testno2 = i; + } else + testno2 = testno1; - nfailed1 = 0; - for (i = testno1; i <= testno2; ++test_func, ++i) { - output(" %s\n", test_func->desc); - switch (test_func->func()) { + output("Running tests for %s sockets:\n", sock_type_str); + failed_num = 0; + for (i = testno1, tf += testno1; i <= testno2; ++tf, ++i) { + output(" %u: %s\n", i, tf->desc); + switch (tf->func()) { case -1: - ++nfailed1; + ++failed_num; break; case -2: - logmsgx("some system error occurred, exiting"); + logmsgx("some system error or timeout occurred"); return (-1); } } - nfailed += nfailed1; + if (failed_num != 0) + failed_flag = true; if (testno1 != testno2) { - if (nfailed1 == 0) - output("-- all tests were passed!\n"); + if (failed_num == 0) + output("-- all tests passed!\n"); else - output("-- %u test%s failed!\n", nfailed1, - nfailed1 == 1 ? "" : "s"); + output("-- %u test%s failed!\n", + failed_num, failed_num == 1 ? "" : "s"); } else { - if (nfailed == 0) - output("-- test was passed!\n"); + if (failed_num == 0) + output("-- test passed!\n"); else output("-- test failed!\n"); } @@ -284,183 +365,322 @@ run_tests(u_int testno1, u_int testno2) return (0); } -/* ARGSUSED */ -static void -sig_alrm(int signo __unused) +static int +init(void) +{ + struct sigaction sigact; + size_t idx; + int rv; + + proc_name = "SERVER"; + + sigact.sa_handler = SIG_IGN; + sigact.sa_flags = 0; + sigemptyset(&sigact.sa_mask); + if (sigaction(SIGPIPE, &sigact, (struct sigaction *)NULL) < 0) { + logmsg("init: sigaction"); + return (-1); + } + + if (ipc_msg.buf_size == 0) + ipc_msg.buf_send = ipc_msg.buf_recv = NULL; + else { + ipc_msg.buf_send = malloc(ipc_msg.buf_size); + ipc_msg.buf_recv = malloc(ipc_msg.buf_size); + if (ipc_msg.buf_send == NULL || ipc_msg.buf_recv == NULL) { + logmsg("init: malloc"); + return (-1); + } + for (idx = 0; idx < ipc_msg.buf_size; ++idx) + ipc_msg.buf_send[idx] = (char)idx; + } + + proc_cred.uid = getuid(); + proc_cred.euid = geteuid(); + proc_cred.gid = getgid(); + proc_cred.egid = getegid(); + proc_cred.gid_num = getgroups(0, (gid_t *)NULL); + if (proc_cred.gid_num < 0) { + logmsg("init: getgroups"); + return (-1); + } + proc_cred.gid_arr = malloc(proc_cred.gid_num * + sizeof(*proc_cred.gid_arr)); + if (proc_cred.gid_arr == NULL) { + logmsg("init: malloc"); + return (-1); + } + if (getgroups(proc_cred.gid_num, proc_cred.gid_arr) < 0) { + logmsg("init: getgroups"); + return (-1); + } + + memset(&serv_addr_sun, 0, sizeof(serv_addr_sun)); + rv = snprintf(serv_addr_sun.sun_path, sizeof(serv_addr_sun.sun_path), + "%s/%s", work_dir, proc_name); + if (rv < 0) { + logmsg("init: snprintf"); + return (-1); + } + if ((size_t)rv >= sizeof(serv_addr_sun.sun_path)) { + logmsgx("init: not enough space for socket pathname"); + return (-1); + } + serv_addr_sun.sun_family = PF_LOCAL; + serv_addr_sun.sun_len = SUN_LEN(&serv_addr_sun); + + return (0); +} + +static int +client_fork(void) { - siglongjmp(env_alrm, 1); + int fd1, fd2; + + if (pipe(sync_fd[SYNC_SERVER]) < 0 || + pipe(sync_fd[SYNC_CLIENT]) < 0) { + logmsg("client_fork: pipe"); + return (-1); + } + client_pid = fork(); + if (client_pid == (pid_t)-1) { + logmsg("client_fork: fork"); + return (-1); + } + if (client_pid == 0) { + proc_name = "CLIENT"; + server_flag = false; + fd1 = sync_fd[SYNC_SERVER][SYNC_RECV]; + fd2 = sync_fd[SYNC_CLIENT][SYNC_SEND]; + } else { + fd1 = sync_fd[SYNC_SERVER][SYNC_SEND]; + fd2 = sync_fd[SYNC_CLIENT][SYNC_RECV]; + } + if (close(fd1) < 0 || close(fd2) < 0) { + logmsg("client_fork: close"); + return (-1); + } + return (client_pid != 0); } -/* - * Initialize signals handlers. - */ static void -sig_init(void) +client_exit(int rv) +{ + if (close(sync_fd[SYNC_SERVER][SYNC_SEND]) < 0 || + close(sync_fd[SYNC_CLIENT][SYNC_RECV]) < 0) { + logmsg("client_exit: close"); + rv = -1; + } + rv = rv == 0 ? EXIT_SUCCESS : -rv; + dbgmsg("exit: code %d", rv); + _exit(rv); +} + +static int +client_wait(void) { - struct sigaction sa; + int status; + pid_t pid; - sa.sa_handler = SIG_IGN; - sigemptyset(&sa.sa_mask); - sa.sa_flags = 0; - if (sigaction(SIGPIPE, &sa, (struct sigaction *)NULL) < 0) - err(EX_OSERR, "sigaction(SIGPIPE)"); - - sa.sa_handler = sig_alrm; - if (sigaction(SIGALRM, &sa, (struct sigaction *)NULL) < 0) - err(EX_OSERR, "sigaction(SIGALRM)"); + dbgmsg("waiting for client"); + + if (close(sync_fd[SYNC_SERVER][SYNC_RECV]) < 0 || + close(sync_fd[SYNC_CLIENT][SYNC_SEND]) < 0) { + logmsg("client_wait: close"); + return (-1); + } + + pid = waitpid(client_pid, &status, 0); + if (pid == (pid_t)-1) { + logmsg("client_wait: waitpid"); + return (-1); + } + + if (WIFEXITED(status)) { + if (WEXITSTATUS(status) != EXIT_SUCCESS) { + logmsgx("client exit status is %d", + WEXITSTATUS(status)); + return (-WEXITSTATUS(status)); + } + } else { + if (WIFSIGNALED(status)) + logmsgx("abnormal termination of client, signal %d%s", + WTERMSIG(status), WCOREDUMP(status) ? + " (core file generated)" : ""); + else + logmsgx("termination of client, unknown status"); + return (-1); + } + + return (0); } int main(int argc, char *argv[]) { const char *errstr; - int opt, dgramflag, streamflag; - u_int testno1, testno2; - - dgramflag = streamflag = 0; - while ((opt = getopt(argc, argv, "dht:z")) != -1) + u_int testno, zvalue; + int opt, rv; + bool dgram_flag, stream_flag; + + ipc_msg.buf_size = IPC_MSG_SIZE_DEF; + ipc_msg.msg_num = IPC_MSG_NUM_DEF; + dgram_flag = stream_flag = false; + while ((opt = getopt(argc, argv, "dhn:s:t:z:")) != -1) switch (opt) { case 'd': - debug = 1; + debug = true; break; case 'h': - usage(0); - return (EX_OK); + usage(true); + return (EXIT_SUCCESS); + case 'n': + ipc_msg.msg_num = strtonum(optarg, 1, + IPC_MSG_NUM_MAX, &errstr); + if (errstr != NULL) + errx(EXIT_FAILURE, "option -n: number is %s", + errstr); + break; + case 's': + ipc_msg.buf_size = strtonum(optarg, 0, + IPC_MSG_SIZE_MAX, &errstr); + if (errstr != NULL) + errx(EXIT_FAILURE, "option -s: number is %s", + errstr); + break; case 't': if (strcmp(optarg, "stream") == 0) - streamflag = 1; + stream_flag = true; else if (strcmp(optarg, "dgram") == 0) - dgramflag = 1; + dgram_flag = true; else - errx(EX_USAGE, "wrong socket type in -t option"); + errx(EXIT_FAILURE, "option -t: " + "wrong socket type"); break; case 'z': - no_control_data = 1; + zvalue = strtonum(optarg, 0, 3, &errstr); + if (errstr != NULL) + errx(EXIT_FAILURE, "option -z: number is %s", + errstr); + if (zvalue & 0x1) + send_data_flag = false; + if (zvalue & 0x2) + send_array_flag = false; break; - case '?': default: - usage(1); - return (EX_USAGE); + usage(false); + return (EXIT_FAILURE); } if (optind < argc) { if (optind + 1 != argc) - errx(EX_USAGE, "too many arguments"); - testno1 = strtonum(argv[optind], 0, UINT_MAX, &errstr); + errx(EXIT_FAILURE, "too many arguments"); + testno = strtonum(argv[optind], 0, UINT_MAX, &errstr); if (errstr != NULL) - errx(EX_USAGE, "wrong test number: %s", errstr); + errx(EXIT_FAILURE, "test number is %s", errstr); + if (stream_flag && testno >= TEST_STREAM_TBL_SIZE) + errx(EXIT_FAILURE, "given test %u for stream " + "sockets does not exist", testno); + if (dgram_flag && testno >= TEST_DGRAM_TBL_SIZE) *** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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