/* recv a pdu */
static void stub_rx_pdu(struct usbip_device *ud)
{
int ret;
struct usbip_header pdu;
struct stub_device *sdev = container_of(ud, struct stub_device, ud);
dbg_stub_rx("Enter\n");
memset(&pdu, 0, sizeof(pdu));
/* 1. receive a pdu header */
dbg_stub_rx("before usbip_xmit\n");
ret = usbip_xmit(0, ud->tcp_socket, (char *) &pdu, sizeof(pdu), 0);
dbg_stub_rx("after usbip_xmit\n");
if (ret != sizeof(pdu)) {
uerr("recv a header, %d\n", ret);
usbip_event_add(ud, SDEV_EVENT_ERROR_TCP);
return;
}
usbip_header_correct_endian(&pdu, 0);
if (dbg_flag_stub_rx)
usbip_dump_header(&pdu);
if (!valid_request(sdev, &pdu)) {
uerr("recv invalid request\n");
usbip_event_add(ud, SDEV_EVENT_ERROR_TCP);
return;
}
#if CLIENT > 2
sdev->heartbeat_pending = 0;
#endif
switch (pdu.base.command) {
case USBIP_CMD_UNLINK:
stub_recv_cmd_unlink(sdev, &pdu);
break;
case USBIP_CMD_SUBMIT:
stub_recv_cmd_submit(sdev, &pdu);
break;
#if CLIENT > 2
// added by tf, 110530
case USBIP_HEARTBEAT_REPLY:
sdev->heartbeat_pending = 0;
break;
// end --- added
#endif
default:
/* NOTREACHED */
uerr("unknown pdu\n");
usbip_event_add(ud, SDEV_EVENT_ERROR_TCP);
return;
}
}
/* recv a pdu */
static void stub_rx_pdu(struct usbip_device *ud)
{
int ret;
struct usbip_header pdu;
struct stub_device *sdev = container_of(ud, struct stub_device, ud);
dbg_stub_rx("Enter\n");
memset(&pdu, 0, sizeof(pdu));
/* 1. receive a pdu header */
ret = usbip_xmit(0, ud->tcp_socket, (char *) &pdu, sizeof(pdu),0);
if (ret != sizeof(pdu)) {
uerr("recv a header, %d\n", ret);
usbip_event_add(ud, SDEV_EVENT_ERROR_TCP);
return;
}
usbip_header_correct_endian(&pdu, 0);
if (dbg_flag_stub_rx)
usbip_dump_header(&pdu);
if (!valid_request(sdev, &pdu)) {
uerr("recv invalid request\n");
usbip_event_add(ud, SDEV_EVENT_ERROR_TCP);
return;
}
switch (pdu.base.command) {
case USBIP_CMD_UNLINK:
stub_recv_cmd_unlink(sdev, &pdu);
break;
case USBIP_CMD_SUBMIT:
stub_recv_cmd_submit(sdev, &pdu);
break;
default:
/* NOTREACHED */
uerr("unknown pdu\n");
usbip_event_add(ud, SDEV_EVENT_ERROR_TCP);
return;
}
}
int
main(int argc, char **argv)
{
Buffer b;
Options options;
#define NUM_KEYTYPES 3
Key *keys[NUM_KEYTYPES], *key = NULL;
struct passwd *pw;
int key_fd[NUM_KEYTYPES], i, found, version = 2, fd;
u_char *signature, *data;
char *host;
u_int slen, dlen;
u_int32_t rnd[256];
/* Ensure that stdin and stdout are connected */
if ((fd = open(_PATH_DEVNULL, O_RDWR)) < 2)
exit(1);
/* Leave /dev/null fd iff it is attached to stderr */
if (fd > 2)
close(fd);
i = 0;
key_fd[i++] = open(_PATH_HOST_DSA_KEY_FILE, O_RDONLY);
key_fd[i++] = open(_PATH_HOST_ECDSA_KEY_FILE, O_RDONLY);
key_fd[i++] = open(_PATH_HOST_RSA_KEY_FILE, O_RDONLY);
original_real_uid = getuid(); /* XXX readconf.c needs this */
if ((pw = getpwuid(original_real_uid)) == NULL)
fatal("getpwuid failed");
pw = pwcopy(pw);
permanently_set_uid(pw);
#ifdef DEBUG_SSH_KEYSIGN
log_init("ssh-keysign", SYSLOG_LEVEL_DEBUG3, SYSLOG_FACILITY_AUTH, 0);
#endif
/* verify that ssh-keysign is enabled by the admin */
initialize_options(&options);
(void)read_config_file(_PATH_HOST_CONFIG_FILE, "", &options, 0);
fill_default_options(&options);
if (options.enable_ssh_keysign != 1)
fatal("ssh-keysign not enabled in %s",
_PATH_HOST_CONFIG_FILE);
for (i = found = 0; i < NUM_KEYTYPES; i++) {
if (key_fd[i] != -1)
found = 1;
}
if (found == 0)
fatal("could not open any host key");
OpenSSL_add_all_algorithms();
for (i = 0; i < 256; i++)
rnd[i] = arc4random();
RAND_seed(rnd, sizeof(rnd));
found = 0;
for (i = 0; i < NUM_KEYTYPES; i++) {
keys[i] = NULL;
if (key_fd[i] == -1)
continue;
keys[i] = key_load_private_pem(key_fd[i], KEY_UNSPEC,
NULL, NULL);
close(key_fd[i]);
if (keys[i] != NULL)
found = 1;
}
if (!found)
fatal("no hostkey found");
buffer_init(&b);
if (ssh_msg_recv(STDIN_FILENO, &b) < 0)
fatal("ssh_msg_recv failed");
if (buffer_get_char(&b) != version)
fatal("bad version");
fd = buffer_get_int(&b);
if ((fd == STDIN_FILENO) || (fd == STDOUT_FILENO))
fatal("bad fd");
if ((host = get_local_name(fd)) == NULL)
fatal("cannot get local name for fd");
data = buffer_get_string(&b, &dlen);
if (valid_request(pw, host, &key, data, dlen) < 0)
fatal("not a valid request");
xfree(host);
found = 0;
for (i = 0; i < NUM_KEYTYPES; i++) {
if (keys[i] != NULL &&
key_equal_public(key, keys[i])) {
found = 1;
break;
}
}
if (!found)
fatal("no matching hostkey found");
if (key_sign(keys[i], &signature, &slen, data, dlen) != 0)
fatal("key_sign failed");
xfree(data);
/* send reply */
buffer_clear(&b);
buffer_put_string(&b, signature, slen);
if (ssh_msg_send(STDOUT_FILENO, version, &b) == -1)
fatal("ssh_msg_send failed");
return (0);
}
int
main(void)
{
uint8_t buf[MAX_IPMB_PKT_SIZE+2];
uint8_t* pBuf = NULL;
IpmbReq_t* pReq = (IpmbReq_t*)(buf + 1);
size_t buf_len = sizeof(IpmbReq_t) + 2UL; // slave addy, header, cksum
size_t data_len = MAX_IPMB_PKT_SIZE - sizeof(IpmbReq_t) - 2UL;
size_t i;
*buf = 0x24;
pReq->NetFn = 0x6 << 2;
pReq->MasterAddr = 0x10;
pReq->SeqNum = 0x30;
pReq->Command = 1;
checksum(*buf, pReq, 0UL);
pReq->Data[1] = 0xAA; // Bogus test byte
pReq->Data[2] = 0x55; // Bogus test byte
plan(18);
ok(valid_request(buf, buf_len), "Stock message passes");
ok(false == valid_request(pBuf, buf_len), "NULL pointer fails");
ok(false == valid_request(buf, buf_len - 1UL), "Buffer length too small");
ok(false == valid_request(buf, MAX_IPMB_PKT_SIZE + 2UL), "Buffer length too large");
ok(false == valid_request(buf, sizeof(IpmbReq_t)), "Buffer length too small");
ok(false == valid_request(buf, 0UL), "Buffer length too small");
ok(false == valid_request(buf, 1UL), "Buffer length too small");
ok(false == valid_request(buf, buf_len + 1UL), "Bad checksum (1 off)");
ok(false == valid_request(buf, buf_len + 2UL), "Bad checksum (2 off)");
pReq->NetFn = 7 << 2;
checksum(*buf, pReq, 0UL);
ok(false == valid_request(buf, buf_len), "Response NetFn fails");
pReq->NetFn = 6 << 2;
*buf = 0x37;
checksum(*buf, pReq, 0UL);
ok(false == valid_request(buf, buf_len), "Invalid 7-bit slave address");
*buf = 0x38;
ok(false == valid_request(buf, buf_len), "First checksum fails (-1)");
pReq->Checksum += 2;
ok(false == valid_request(buf, buf_len), "First checksum fails (+1)");
pReq->Checksum = 0;
ok(false == valid_request(buf, buf_len), "First checksum fails (== 0)");
pReq->Checksum = 0xff;
ok(false == valid_request(buf, buf_len), "First checksum fails (== ff)");
checksum(*buf, pReq, 0UL);
for(i = 0UL; i < data_len; i++) {
pReq->Data[i] = i;
}
checksum(*buf, pReq, data_len);
ok(valid_request(buf, buf_len + data_len), "Large message passes");
pReq->Data[data_len]--;
ok(false == valid_request(buf, buf_len + data_len), "Large message bad second checksum fails (-1)");
pReq->Data[data_len] =+ 2;
ok(false == valid_request(buf, buf_len + data_len), "Large message bad second checksum fails (+1)");
}
int
main(int argc, char **argv)
{
struct sshbuf *b;
Options options;
#define NUM_KEYTYPES 4
struct sshkey *keys[NUM_KEYTYPES], *key = NULL;
struct passwd *pw;
int r, key_fd[NUM_KEYTYPES], i, found, version = 2, fd;
u_char *signature, *data, rver;
char *host, *fp;
size_t slen, dlen;
#ifdef WITH_OPENSSL
u_int32_t rnd[256];
#endif
if (pledge("stdio rpath getpw dns id", NULL) != 0)
fatal("%s: pledge: %s", __progname, strerror(errno));
/* Ensure that stdin and stdout are connected */
if ((fd = open(_PATH_DEVNULL, O_RDWR)) < 2)
exit(1);
/* Leave /dev/null fd iff it is attached to stderr */
if (fd > 2)
close(fd);
i = 0;
/* XXX This really needs to read sshd_config for the paths */
key_fd[i++] = open(_PATH_HOST_DSA_KEY_FILE, O_RDONLY);
key_fd[i++] = open(_PATH_HOST_ECDSA_KEY_FILE, O_RDONLY);
key_fd[i++] = open(_PATH_HOST_ED25519_KEY_FILE, O_RDONLY);
key_fd[i++] = open(_PATH_HOST_RSA_KEY_FILE, O_RDONLY);
original_real_uid = getuid(); /* XXX readconf.c needs this */
if ((pw = getpwuid(original_real_uid)) == NULL)
fatal("getpwuid failed");
pw = pwcopy(pw);
permanently_set_uid(pw);
seed_rng();
#ifdef DEBUG_SSH_KEYSIGN
log_init("ssh-keysign", SYSLOG_LEVEL_DEBUG3, SYSLOG_FACILITY_AUTH, 0);
#endif
/* verify that ssh-keysign is enabled by the admin */
initialize_options(&options);
(void)read_config_file(_PATH_HOST_CONFIG_FILE, pw, "", "", &options, 0);
fill_default_options(&options);
if (options.enable_ssh_keysign != 1)
fatal("ssh-keysign not enabled in %s",
_PATH_HOST_CONFIG_FILE);
for (i = found = 0; i < NUM_KEYTYPES; i++) {
if (key_fd[i] != -1)
found = 1;
}
if (found == 0)
fatal("could not open any host key");
#ifdef WITH_OPENSSL
OpenSSL_add_all_algorithms();
arc4random_buf(rnd, sizeof(rnd));
RAND_seed(rnd, sizeof(rnd));
#endif
found = 0;
for (i = 0; i < NUM_KEYTYPES; i++) {
keys[i] = NULL;
if (key_fd[i] == -1)
continue;
r = sshkey_load_private_type_fd(key_fd[i], KEY_UNSPEC,
NULL, &key, NULL);
close(key_fd[i]);
if (r != 0)
debug("parse key %d: %s", i, ssh_err(r));
else if (key != NULL) {
keys[i] = key;
found = 1;
}
}
if (!found)
fatal("no hostkey found");
if (pledge("stdio dns", NULL) != 0)
fatal("%s: pledge: %s", __progname, strerror(errno));
if ((b = sshbuf_new()) == NULL)
fatal("%s: sshbuf_new failed", __progname);
if (ssh_msg_recv(STDIN_FILENO, b) < 0)
fatal("ssh_msg_recv failed");
if ((r = sshbuf_get_u8(b, &rver)) != 0)
fatal("%s: buffer error: %s", __progname, ssh_err(r));
if (rver != version)
fatal("bad version: received %d, expected %d", rver, version);
if ((r = sshbuf_get_u32(b, (u_int *)&fd)) != 0)
fatal("%s: buffer error: %s", __progname, ssh_err(r));
if (fd < 0 || fd == STDIN_FILENO || fd == STDOUT_FILENO)
fatal("bad fd");
if ((host = get_local_name(fd)) == NULL)
fatal("cannot get local name for fd");
if ((r = sshbuf_get_string(b, &data, &dlen)) != 0)
fatal("%s: buffer error: %s", __progname, ssh_err(r));
if (valid_request(pw, host, &key, data, dlen) < 0)
fatal("not a valid request");
free(host);
found = 0;
for (i = 0; i < NUM_KEYTYPES; i++) {
if (keys[i] != NULL &&
sshkey_equal_public(key, keys[i])) {
found = 1;
break;
}
}
if (!found) {
if ((fp = sshkey_fingerprint(key, options.fingerprint_hash,
SSH_FP_DEFAULT)) == NULL)
fatal("%s: sshkey_fingerprint failed", __progname);
fatal("no matching hostkey found for key %s %s",
sshkey_type(key), fp ? fp : "");
}
if ((r = sshkey_sign(keys[i], &signature, &slen, data, dlen, NULL, 0))
!= 0)
fatal("sshkey_sign failed: %s", ssh_err(r));
free(data);
/* send reply */
sshbuf_reset(b);
if ((r = sshbuf_put_string(b, signature, slen)) != 0)
fatal("%s: buffer error: %s", __progname, ssh_err(r));
if (ssh_msg_send(STDOUT_FILENO, version, b) == -1)
fatal("ssh_msg_send failed");
return (0);
}
