/**
* Set argument defaults, read and validate command line options
*/
void process_args(int argc, char *argv[])
{
int c, i, listidx;
long tmpval;
struct hostent *hp;
struct in_addr addr, *paddr;
char line[1000], *servername, *fingerprint, *p;
FILE *serverfile;
const char opts[] = "dv:nL:P:I:p:T:D:M:B:Q:EU:S:R:k:K:m";
set_defaults();
// read lettered arguments
while ((c = getopt(argc, argv, opts)) != EOF) {
switch (c) {
case 'd':
debug = 1;
break;
case 'n':
noname = 1;
break;
case 'v':
verbose = atoi(optarg);
break;
case 'L':
strncpy(logfile, optarg, sizeof(logfile)-1);
logfile[sizeof(logfile)-1] = '\x0';
break;
case 'P':
strncpy(pidfile, optarg, sizeof(pidfile)-1);
pidfile[sizeof(pidfile)-1] = '\x0';
break;
case 'I':
p = strtok(optarg, ",");
while (p != NULL) {
if ((listidx = getifbyname(p, ifl, ifl_len)) != -1) {
m_interface[interface_count++] = ifl[listidx];
p = strtok(NULL, ",");
continue;
}
if (inet_addr(p) == INADDR_NONE) {
if ((hp = gethostbyname(p)) == NULL) {
fprintf(stderr, "Invalid host name: %s\n", p);
exit(1);
} else {
paddr = (struct in_addr *)hp->h_addr_list[0];
}
} else {
addr.s_addr = inet_addr(p);
paddr = &addr;
}
if ((listidx = getifbyaddr(*paddr, ifl, ifl_len)) != -1) {
m_interface[interface_count++] = ifl[listidx];
} else {
fprintf(stderr, "Interface %s not found\n", p);
exit(1);
}
p = strtok(NULL, ",");
}
break;
case 'p':
port = atoi(optarg);
if (port == 0) {
fprintf(stderr, "Invalid port\n");
exit(1);
}
break;
case 'T':
strncpy(tempdir, optarg, sizeof(tempdir)-1);
tempdir[sizeof(tempdir)-1] = '\x0';
break;
case 'D':
strncpy(destdir, optarg, sizeof(destdir)-1);
destdir[sizeof(destdir)-1] = '\x0';
break;
case 'M':
p = strtok(optarg, ",");
while (p != NULL) {
pub_multi[pub_multi_count].s_addr = inet_addr(p);
if ((pub_multi[pub_multi_count].s_addr == INADDR_NONE) ||
(!is_multicast(pub_multi[pub_multi_count], 0))) {
fprintf(stderr, "Invalid multicast address: %s\n", p);
exit(1);
}
pub_multi_count++;
p = strtok(NULL, ",");
}
break;
case 'B':
buffer = atoi(optarg);
if ((buffer < 65536) || (buffer > 104857600)) {
fprintf(stderr, "Invalid buffer size\n");
exit(1);
}
break;
case 'Q':
tmpval = strtol(optarg, NULL, 0);
if ((tmpval < 0) || (tmpval > 63)) {
fprintf(stderr, "Invalid dscp\n");
exit(1);
}
dscp = (tmpval & 0xFF) << 2;
break;
case 'E':
encrypted_only = 1;
break;
case 'U':
if ((uid = inet_addr(optarg)) != 0) {
if (ntohl(uid) > 0xffffff) {
fprintf(stderr, "Invalid UID\n");
exit(1);
}
} else {
uid = strtol(optarg, NULL, 16);
if ((uid > 0xffffff) || (uid <= 0)) {
fprintf(stderr, "Invalid UID\n");
exit(1);
}
uid = htonl(uid);
}
break;
case 'S':
if ((serverfile = fopen(optarg, "r")) == NULL) {
fprintf(stderr, "Couldn't open server list %s: %s\n",
optarg, strerror(errno));
exit(1);
}
while (fgets(line, sizeof(line), serverfile)) {
while (line[strlen(line)-1] == '\r' ||
line[strlen(line)-1] == '\n') {
line[strlen(line)-1] = '\x0';
}
servername = strtok(line, " \t");
if (!servername) continue;
if (servername[0] == '#') continue;
if (strlen(servername) > DESTNAME_LEN) {
fprintf(stderr, "Server list: name too long\n");
exit(1);
}
fingerprint = strtok(NULL, " \t");
add_server_by_name(servername, fingerprint);
}
if (!feof(serverfile) && ferror(serverfile)) {
perror("Failed to read from server list file");
exit(1);
}
fclose(serverfile);
break;
case 'R':
strncpy(line, optarg, sizeof(line));
line[sizeof(line)-1] = '\x0';
servername = strtok(line, "/");
if (!servername) {
fprintf(stderr, "Invalid host name\n");
exit(1);
}
fingerprint = strtok(NULL, "/");
if (inet_addr(servername) == INADDR_NONE) {
if ((hp = gethostbyname(servername)) == NULL) {
fprintf(stderr, "Invalid host name: %s\n", servername);
exit(1);
} else {
paddr = (struct in_addr *)hp->h_addr_list[0];
proxy_info.addr = *paddr;
proxy_info.has_fingerprint =
parse_fingerprint(proxy_info.fingerprint,
fingerprint);
has_proxy = 1;
}
} else {
proxy_info.addr.s_addr = inet_addr(servername);
proxy_info.has_fingerprint =
parse_fingerprint(proxy_info.fingerprint, fingerprint);
has_proxy = 1;
}
break;
case 'k':
p = strtok(optarg, ",");
while (p != NULL) {
strncpy(keyfile[keyfile_count], p, sizeof(keyfile[0])-1);
keyfile[keyfile_count][sizeof(keyfile[0])-1] = '\x0';
keyfile_count++;
p = strtok(NULL, ",");
}
break;
case 'K':
newkeylen = atoi(optarg);
if ((newkeylen < 512) || (newkeylen > 2048)) {
fprintf(stderr, "Invalid new key length\n");
exit(1);
}
break;
case 'm':
sys_keys = 1;
break;
case '?':
fprintf(stderr, USAGE);
exit(1);
}
}
if (server_count) {
for (i = 0; i < pub_multi_count; i++) {
if (!is_multicast(pub_multi[i], 1)) {
fprintf(stderr, "Invalid source specific "
"multicast address: %s\n", inet_ntoa(pub_multi[i]));
exit(1);
}
}
if (pub_multi_count == 0) {
fprintf(stderr, "Default multicast address %s invalid "
"for source specific multicast\n", DEF_PUB_MULTI);
exit(1);
}
}
}
/**
* Set argument defaults, read and validate command line options
*/
void process_args(int argc, char *argv[])
{
int c, i, listidx, hbport;
long tmpval;
struct hostent *hp;
struct in_addr addr, *paddr;
char line[1000], *servername, *fingerprint, *p, *p2, *hoststr, *portstr;
FILE *serverfile;
const char opts[] = "dx:nL:P:I:p:tT:D:A:M:B:Q:EU:S:R:k:K:mN:h:H:";
set_defaults();
// read lettered arguments
while ((c = getopt(argc, argv, opts)) != EOF) {
switch (c) {
case 'd':
debug = 1;
break;
case 'n':
noname = 1;
break;
case 'x':
log_level = atoi(optarg);
if (log_level < 0) {
fprintf(stderr, "Invalid log level\n");
exit(1);
}
break;
case 'L':
strncpy(logfile, optarg, sizeof(logfile)-1);
logfile[sizeof(logfile)-1] = '\x0';
break;
case 'P':
strncpy(pidfile, optarg, sizeof(pidfile)-1);
pidfile[sizeof(pidfile)-1] = '\x0';
break;
case 'I':
p = strtok(optarg, ",");
while (p != NULL) {
if ((listidx = getifbyname(p, ifl, ifl_len)) != -1) {
m_interface[interface_count++] = ifl[listidx];
p = strtok(NULL, ",");
continue;
}
if (inet_addr(p) == INADDR_NONE) {
if ((hp = gethostbyname(p)) == NULL) {
fprintf(stderr, "Invalid host name: %s\n", p);
exit(1);
} else {
paddr = (struct in_addr *)hp->h_addr_list[0];
}
} else {
addr.s_addr = inet_addr(p);
paddr = &addr;
}
if ((listidx = getifbyaddr(*paddr, ifl, ifl_len)) != -1) {
m_interface[interface_count++] = ifl[listidx];
} else {
fprintf(stderr, "Interface %s not found\n", p);
exit(1);
}
p = strtok(NULL, ",");
}
break;
case 'p':
port = atoi(optarg);
if (port == 0) {
fprintf(stderr, "Invalid port\n");
exit(1);
}
break;
case 't':
tempfile = 1;
break;
case 'T':
strncpy(tempdir, optarg, sizeof(tempdir)-1);
tempdir[sizeof(tempdir)-1] = '\x0';
break;
case 'D':
p = strtok(optarg, ",");
while (p != NULL) {
strncpy(destdir[destdircnt], p, sizeof(destdir[destdircnt])-1);
destdir[destdircnt][sizeof(destdir[destdircnt])-1] = '\x0';
destdircnt++;
p = strtok(NULL, ",");
}
break;
case 'A':
p = strtok(optarg, ",");
while (p != NULL) {
strncpy(backupdir[backupcnt],p,sizeof(backupdir[backupcnt])-1);
backupdir[backupcnt][sizeof(backupdir[backupcnt])-1] = '\x0';
backupcnt++;
p = strtok(NULL, ",");
}
break;
case 'M':
p = strtok(optarg, ",");
while (p != NULL) {
pub_multi[pub_multi_count].s_addr = inet_addr(p);
if ((pub_multi[pub_multi_count].s_addr == INADDR_NONE) ||
(!is_multicast(pub_multi[pub_multi_count], 0))) {
fprintf(stderr, "Invalid multicast address: %s\n", p);
exit(1);
}
pub_multi_count++;
p = strtok(NULL, ",");
}
break;
case 'B':
buffer = atoi(optarg);
if ((buffer < 65536) || (buffer > 104857600)) {
fprintf(stderr, "Invalid buffer size\n");
exit(1);
}
break;
case 'Q':
tmpval = strtol(optarg, NULL, 0);
if ((tmpval < 0) || (tmpval > 63)) {
fprintf(stderr, "Invalid dscp\n");
exit(1);
}
dscp = (tmpval & 0xFF) << 2;
break;
case 'E':
encrypted_only = 1;
break;
case 'U':
if ((uid = inet_addr(optarg)) != 0) {
if (ntohl(uid) > 0xffffff) {
fprintf(stderr, "Invalid UID\n");
exit(1);
}
} else {
uid = strtol(optarg, NULL, 16);
if ((uid > 0xffffff) || (uid <= 0)) {
fprintf(stderr, "Invalid UID\n");
exit(1);
}
uid = htonl(uid);
}
break;
case 'S':
if ((serverfile = fopen(optarg, "r")) == NULL) {
fprintf(stderr, "Couldn't open server list %s: %s\n",
optarg, strerror(errno));
exit(1);
}
while (fgets(line, sizeof(line), serverfile)) {
while ((strlen(line) != 0) && ((line[strlen(line)-1] == '\r') ||
(line[strlen(line)-1] == '\n'))) {
line[strlen(line)-1] = '\x0';
}
servername = strtok(line, " \t");
if (!servername) continue;
if (servername[0] == '#') continue;
if (strlen(servername) > DESTNAME_LEN) {
fprintf(stderr, "Server list: name too long\n");
exit(1);
}
fingerprint = strtok(NULL, " \t");
add_server_by_name(servername, fingerprint);
}
if (!feof(serverfile) && ferror(serverfile)) {
perror("Failed to read from server list file");
exit(1);
}
fclose(serverfile);
break;
case 'R':
strncpy(line, optarg, sizeof(line));
line[sizeof(line)-1] = '\x0';
servername = strtok(line, "/");
if (!servername) {
fprintf(stderr, "Invalid host name\n");
exit(1);
}
fingerprint = strtok(NULL, "/");
if (inet_addr(servername) == INADDR_NONE) {
if ((hp = gethostbyname(servername)) == NULL) {
fprintf(stderr, "Invalid host name: %s\n", servername);
exit(1);
} else {
paddr = (struct in_addr *)hp->h_addr_list[0];
proxy_info.addr = *paddr;
proxy_info.has_fingerprint =
parse_fingerprint(proxy_info.fingerprint,
fingerprint);
has_proxy = 1;
}
} else {
proxy_info.addr.s_addr = inet_addr(servername);
proxy_info.has_fingerprint =
parse_fingerprint(proxy_info.fingerprint, fingerprint);
has_proxy = 1;
}
break;
case 'k':
p = strtok(optarg, ",");
while (p != NULL) {
strncpy(keyfile[keyfile_count], p, sizeof(keyfile[0])-1);
keyfile[keyfile_count][sizeof(keyfile[0])-1] = '\x0';
keyfile_count++;
p = strtok(NULL, ",");
}
break;
case 'K':
newkeylen = atoi(optarg);
if ((newkeylen < 512) || (newkeylen > 2048)) {
fprintf(stderr, "Invalid new key length\n");
exit(1);
}
break;
case 'm':
sys_keys = 1;
break;
case 'N':
priority = atoi(optarg);
if (!valid_priority(priority)) {
fprintf(stderr, "Invalid priority value\n");
exit(1);
}
break;
case 'H':
p = strtok(optarg, ",");
while (p != NULL) {
p2 = strchr(p, ':');
if (p2) {
hoststr = strdup(p);
hoststr[p2 - p] = '\x0';
portstr = p2 + 1;
} else {
hoststr = p;
portstr = NULL;
}
hb_hosts[hbhost_count].sin_family = AF_INET;
if (inet_addr(hoststr) == INADDR_NONE) {
if ((hp = gethostbyname(hoststr)) == NULL) {
fprintf(stderr, "Invalid host name: %s\n", hoststr);
exit(1);
} else {
paddr = (struct in_addr *)hp->h_addr_list[0];
hb_hosts[hbhost_count].sin_addr.s_addr = paddr->s_addr;
}
} else {
hb_hosts[hbhost_count].sin_addr.s_addr = inet_addr(hoststr);
}
if (portstr) {
free(hoststr);
hbport = atoi(portstr);
if ((hbport <= 0) || (hbport > 65535)) {
hbport = DEF_PORT;
}
} else {
hbport = DEF_PORT;
}
hb_hosts[hbhost_count++].sin_port = htons(hbport);
p = strtok(NULL, ",");
}
break;
case 'h':
hb_interval = atoi(optarg);
if ((hb_interval <= 0) || (hb_interval > 3600)) {
fprintf(stderr, "Invalid hearbeat interval\n");
exit(1);
}
break;
case '?':
fprintf(stderr, USAGE);
exit(1);
}
}
if (server_count) {
for (i = 0; i < pub_multi_count; i++) {
if (!is_multicast(pub_multi[i], 1)) {
fprintf(stderr, "Invalid source specific "
"multicast address: %s\n", inet_ntoa(pub_multi[i]));
exit(1);
}
}
if (pub_multi_count == 0) {
fprintf(stderr, "Default multicast address %s invalid "
"for source specific multicast\n", DEF_PUB_MULTI);
exit(1);
}
}
if (destdircnt == 0) {
strncpy(destdir[0], DEF_DESTDIR, sizeof(destdir[0])-1);
destdir[0][sizeof(destdir[0])-1] = '\x0';
destdircnt++;
}
if ((backupcnt > 0) && (backupcnt != destdircnt)) {
fprintf(stderr, "Must specify same number of backup directories "
"as destination directories\n");
exit(1);
}
if (tempfile && (strcmp(tempdir, ""))) {
fprintf(stderr, "Cannot specify both -t and -T\n");
exit(1);
}
}
/**
* Set argument defaults, read and validate command line options
*/
void process_args(int argc, char *argv[])
{
int c, i, listidx, read_restart, rval;
long tmpval;
char line[1000], *dest, *destname, filename[MAXPATHNAME], *fingerprint, *p;
char keylenstr[50];
struct addrinfo ai_hints, *ai_rval;
FILE *destfile, *excludefile, *listfile;
const char opts[] = "x:R:L:B:g:n:m:Y:h:w:e:ck:K:lTb:t:Q:"
"zZI:p:u:j:qfyU:H:F:X:M:P:C:D:oE:S:r:s:i:W:N:";
set_defaults();
memset(keylenstr, 0, sizeof(keylenstr));
read_restart = 0;
// read lettered arguments
while ((c = getopt(argc, argv, opts)) != EOF) {
switch (c) {
case 'x':
log_level = atoi(optarg);
if (log_level < 0) {
fprintf(stderr,"Invalid log level\n");
exit(ERR_PARAM);
}
break;
case 'R':
// Expecting rate as Kbps, translate to B/s
rate = atoi(optarg);
if ((rate <= 0) && (rate != -1)) {
fprintf(stderr,"Invalid rate\n");
exit(ERR_PARAM);
}
if (rate != -1) {
rate = rate * 1024 / 8;
}
break;
case 'L':
strncpy(logfile, optarg, sizeof(logfile)-1);
logfile[sizeof(logfile)-1] = '\x0';
break;
case 'B':
rcvbuf = atoi(optarg);
if ((rcvbuf < 65536) || (rcvbuf > 104857600)) {
fprintf(stderr, "Invalid receive buffer size\n");
exit(ERR_PARAM);
}
break;
case 'g':
max_log_size = atoi(optarg);
if ((max_log_size < 1) || (max_log_size > 1024)) {
fprintf(stderr, "Invalid max log size\n");
exit(ERR_PARAM);
}
max_log_size *= 1000000;
break;
case 'n':
max_log_count = atoi(optarg);
if ((max_log_count < 1) || (max_log_count > 1000)) {
fprintf(stderr, "Invalid max log count\n");
exit(ERR_PARAM);
}
break;
case 'm':
max_nak_cnt = atoi(optarg);
if ((max_nak_cnt < 1) || (max_nak_cnt > 1000)) {
fprintf(stderr, "Invalid max nak count\n");
exit(ERR_PARAM);
}
break;
case 'Y':
if ((keytype = get_keytype(optarg)) == -1) {
fprintf(stderr, "Invalid keytype\n");
exit(ERR_PARAM);
}
if (keytype != KEY_NONE && !cipher_supported(keytype)) {
fprintf(stderr, "Keytype not supported\n");
exit(ERR_PARAM);
}
break;
case 'h':
if ((hashtype = get_hashtype(optarg)) == -1) {
fprintf(stderr, "Invalid hashtype\n");
exit(ERR_PARAM);
}
if (!hash_supported(hashtype)) {
fprintf(stderr, "Hashtype not supported\n");
exit(ERR_PARAM);
}
break;
case 'w':
if (!strcmp(optarg, "hmac")) {
sigtype = SIG_HMAC;
} else if (!strcmp(optarg, "keyex")) {
sigtype = SIG_KEYEX;
} else {
fprintf(stderr, "Invalid sigtype\n");
exit(ERR_PARAM);
}
break;
case 'e':
p = strtok(optarg, ":");
if (!p) {
fprintf(stderr, "Error reading keyextype\n");
exit(ERR_PARAM);
}
if (!strcmp(p, "rsa")) {
keyextype = KEYEX_RSA;
} else if (!strcmp(p, "ecdh_rsa")) {
keyextype = KEYEX_ECDH_RSA;
} else if (!strcmp(p, "ecdh_ecdsa")) {
keyextype = KEYEX_ECDH_ECDSA;
} else {
fprintf(stderr, "Invalid keyextype\n");
exit(ERR_PARAM);
}
if ((keyextype == KEYEX_ECDH_RSA) ||
(keyextype == KEYEX_ECDH_ECDSA)) {
p = strtok(NULL, ":");
if (p) {
ecdh_curve = get_curve(p);
if (ecdh_curve == 0) {
fprintf(stderr, "Invalid curve\n");
exit(ERR_PARAM);
}
} else {
ecdh_curve = DEF_CURVE;
}
}
break;
case 'c':
client_auth = 1;
break;
case 'k':
strncpy(keyfile, optarg, sizeof(keyfile)-1);
keyfile[sizeof(keyfile)-1] = '\x0';
break;
case 'K':
strncpy(keylenstr, optarg, sizeof(keylenstr)-1);
keylenstr[sizeof(keylenstr)-1] = '\x0';
break;
case 'l':
follow_links = 1;
break;
case 'T':
showtime = 1;
break;
case 'b':
blocksize = atoi(optarg);
if ((blocksize < 512) || (blocksize > (MAXMTU - 200))) {
fprintf(stderr, "Invalid blocksize\n");
exit(ERR_PARAM);
}
break;
case 't':
tmpval = atoi(optarg);
if ((tmpval <= 0) || (tmpval > 255)) {
fprintf(stderr, "Invalid ttl\n");
exit(ERR_PARAM);
}
ttl = (char)tmpval;
break;
case 'Q':
tmpval = strtol(optarg, NULL, 0);
if ((tmpval < 0) || (tmpval > 63)) {
fprintf(stderr, "Invalid dscp\n");
exit(ERR_PARAM);
}
dscp = (tmpval & 0xFF) << 2;
break;
case 'I':
if ((listidx = getifbyname(optarg, ifl, ifl_len)) != -1) {
out_if = ifl[listidx];
break;
}
memset(&ai_hints, 0, sizeof(ai_hints));
ai_hints.ai_family = AF_UNSPEC;
ai_hints.ai_socktype = SOCK_DGRAM;
ai_hints.ai_protocol = 0;
ai_hints.ai_flags = 0;
if ((rval = getaddrinfo(optarg, NULL, &ai_hints, &ai_rval)) != 0) {
fprintf(stderr, "Invalid name/address %s: %s\n",
optarg, gai_strerror(rval));
exit(ERR_PARAM);
}
// Just use the first addrinfo entry
if ((listidx = getifbyaddr((union sockaddr_u *)ai_rval->ai_addr,
ifl, ifl_len)) == -1) {
fprintf(stderr, "Interface %s not found", optarg);
exit(ERR_PARAM);
}
out_if = ifl[listidx];
freeaddrinfo(ai_rval);
break;
case 'z':
sync_mode = 1;
break;
case 'Z':
sync_preview = 1;
sync_mode = 1;
break;
case 'p':
strncpy(port, optarg, sizeof(port)-1);
port[sizeof(port)-1] = '\x0';
break;
case 'u':
strncpy(srcport, optarg, sizeof(srcport)-1);
srcport[sizeof(srcport)-1] = '\x0';
break;
case 'j':
if (read_restart) {
fprintf(stderr,"Can't specify both -j and -F\n");
exit(ERR_PARAM);
}
if ((destfile = fopen(optarg, "rt")) == NULL) {
fprintf(stderr,"Couldn't open proxy list %s: %s\n",
optarg, strerror(errno));
exit(ERR_PARAM);
}
while (fgets(line, sizeof(line), destfile)) {
while ((strlen(line) > 0) && ((line[strlen(line)-1] == '\r') ||
(line[strlen(line)-1] == '\n'))) {
line[strlen(line)-1] = '\x0';
}
destname = strtok(line, "|");
if (!destname) continue;
if (destname[0] == '#') continue;
if (strlen(destname) >= DESTNAME_LEN) {
fprintf(stderr, "Proxylist: name too long\n");
exit(ERR_PARAM);
}
fingerprint = strtok(NULL, " \t");
add_dest_by_name(destname, fingerprint, 1);
}
if (!feof(destfile) && ferror(destfile)) {
perror("Failed to read from proxylist file");
exit(ERR_PARAM);
}
fclose(destfile);
break;
case 'q':
quit_on_error = 1;
break;
case 'f':
save_fail = 1;
break;
case 'y':
sys_keys = 1;
break;
case 'U':
errno = 0;
server_id = strtoul(optarg, NULL, 16);
if (errno) {
perror("Invalid UID\n");
exit(ERR_PARAM);
}
server_id = htonl(server_id);
break;
case 'H':
if (read_restart) {
fprintf(stderr,"Can't specify both -H and -F\n");
exit(ERR_PARAM);
}
if (optarg[0] == '@') {
dest = &optarg[1];
if ((destfile = fopen(dest, "rt")) == NULL) {
fprintf(stderr,"Couldn't open destination list %s: %s\n",
dest, strerror(errno));
exit(ERR_PARAM);
}
while (fgets(line, sizeof(line), destfile)) {
while ((strlen(line) > 0) &&
((line[strlen(line)-1] == '\r') ||
(line[strlen(line)-1] == '\n'))) {
line[strlen(line)-1] = '\x0';
}
destname = strtok(line, "|");
if (!destname) continue;
if (destname[0] == '#') continue;
if (strlen(destname) >= DESTNAME_LEN) {
fprintf(stderr, "Hostlist: name too long\n");
exit(ERR_PARAM);
}
fingerprint = strtok(NULL, " \t");
add_dest_by_name(destname, fingerprint, 0);
}
if (!feof(destfile) && ferror(destfile)) {
perror("Failed to read from hostlist file");
exit(ERR_PARAM);
}
fclose(destfile);
} else {
dest = strtok(optarg, ",");
while (dest != NULL) {
add_dest_by_name(dest, NULL, 0);
dest = strtok(NULL, ",");
}
}
break;
case 'F':
if (destcount != 0) {
fprintf(stderr,"Can't specify both -H and -F\n");
exit(ERR_PARAM);
}
read_restart = 1;
save_fail = 1;
read_restart_file(optarg);
break;
case 'X':
if ((excludefile = fopen(optarg, "rt")) == NULL) {
fprintf(stderr,"Couldn't open exclude list %s: %s\n",
optarg, strerror(errno));
exit(ERR_PARAM);
}
while (fgets(filename, sizeof(filename), excludefile)) {
while ((strlen(filename) > 0) &&
((filename[strlen(filename)-1] == '\r') ||
(filename[strlen(filename)-1] == '\n'))) {
filename[strlen(filename)-1] = '\x0';
}
if (strlen(filename) == 0) continue;
if (excludecount == MAXEXCLUDE) {
fprintf(stderr,"Exceeded maximum exclude file count\n");
exit(ERR_PARAM);
}
strncpy(exclude[excludecount], filename, sizeof(exclude[0]));
exclude[excludecount][sizeof(exclude[0])-1] = '\x0';
excludecount++;
}
if (!feof(excludefile) && ferror(excludefile)) {
perror("Failed to read from exclude file");
exit(ERR_PARAM);
}
fclose(excludefile);
break;
case 'M':
strncpy(pub_multi, optarg, sizeof(pub_multi)-1);
pub_multi[sizeof(pub_multi)-1] = '\x0';
break;
case 'P':
strncpy(priv_multi, optarg, sizeof(priv_multi)-1);
priv_multi[sizeof(priv_multi)-1] = '\x0';
break;
case 'C':
p = strtok(optarg, ":");
if (!p) {
fprintf(stderr, "Error reading cc_type\n");
exit(ERR_PARAM);
}
if (!strcmp(p, "none")) {
cc_type = CC_NONE;
} else if (!strcmp(p, "tfmcc")) {
cc_type = CC_TFMCC;
p = strtok(NULL, ":");
if (p) {
max_rate = atoi(p);
if (max_rate <= 0) {
fprintf(stderr,"Invalid max rate\n");
exit(ERR_PARAM);
}
max_rate = max_rate * 1024 / 8;
}
} else {
// PGMCC not currently supported
fprintf(stderr, "Invalid congestion control type\n");
exit(ERR_PARAM);
}
break;
case 'D':
strncpy(destfname, optarg, sizeof(destfname)-1);
destfname[sizeof(destfname)-1] = '\x0';
while (destfname[strlen(destfname)-1] == PATH_SEP) {
destfname[strlen(destfname)-1] = '\x0';
}
break;
case 'o':
dest_is_dir = 1;
break;
case 'E':
p = strtok(optarg, ",");
while (p != NULL) {
strncpy(basedir[basedircount], p,
sizeof(basedir[basedircount])-1);
basedir[basedircount][sizeof(basedir[basedircount])-1] = '\x0';
basedircount++;
p = strtok(NULL, ",");
}
break;
case 'S':
strncpy(statusfilename, optarg, sizeof(statusfilename)-1);
statusfilename[sizeof(statusfilename)-1] = '\x0';
break;
case 'r':
p = strtok(optarg, ":");
if (!p) {
fprintf(stderr, "Error reading cc_type\n");
exit(ERR_PARAM);
}
errno = 0;
grtt = atof(p);
if (errno) {
perror("Invalid grtt");
exit(ERR_PARAM);
} else if ((grtt < CLIENT_RTT_MIN) || (grtt > 1000)) {
fprintf(stderr, "Invalid grtt\n");
exit(ERR_PARAM);
}
p = strtok(NULL, ":");
if (p) {
errno = 0;
min_grtt = atof(p);
if (errno) {
perror("Invalid min_grtt");
exit(ERR_PARAM);
} else if ((min_grtt < CLIENT_RTT_MIN) || (min_grtt > 1000)) {
fprintf(stderr, "Invalid min_grtt\n");
exit(ERR_PARAM);
}
p = strtok(NULL, ":");
if (!p) {
fprintf(stderr, "Missing max_grtt\n");
exit(ERR_PARAM);
}
errno = 0;
max_grtt = atof(p);
if (errno) {
perror("Invalid max_grtt");
exit(ERR_PARAM);
} else if ((max_grtt < CLIENT_RTT_MIN) || (max_grtt > 1000)) {
fprintf(stderr, "Invalid max_grtt\n");
exit(ERR_PARAM);
}
if (min_grtt > max_grtt) {
fprintf(stderr, "Invalid min_grtt/max_grtt\n");
exit(ERR_PARAM);
} else if ((grtt > max_grtt) || (grtt < min_grtt)) {
fprintf(stderr, "Invalid grtt\n");
exit(ERR_PARAM);
}
}
break;
case 's':
robust = atoi(optarg);
if ((robust < 10) || (robust > 50)) {
fprintf(stderr,"Invalid robustness factor\n");
exit(ERR_PARAM);
}
break;
case 'i':
if (filecount != 0) {
fprintf(stderr,"Can't specify both -i and -F\n");
exit(ERR_PARAM);
}
if (strcmp(optarg, "-") == 0) {
listfile = stdin;
} else if ((listfile = fopen(optarg, "rt")) == NULL) {
fprintf(stderr,"Couldn't open file list %s: %s\n",
optarg, strerror(errno));
exit(ERR_PARAM);
}
while (fgets(filename, sizeof(filename), listfile)) {
if (filecount == MAXFILES) {
fprintf(stderr, "Exceeded maximum file count\n");
exit(ERR_PARAM);
}
while ((strlen(filename) > 0) &&
((filename[strlen(filename)-1] == '\r') ||
(filename[strlen(filename)-1] == '\n'))) {
filename[strlen(filename)-1] = '\x0';
}
if (strlen(filename) == 0) continue;
strncpy(filelist[filecount], filename, sizeof(filelist[0])-1);
filelist[filecount][sizeof(filelist[0])-1] = '\x0';
filecount++;
}
if (!feof(listfile) && ferror(listfile)) {
perror("Failed to read from file list");
exit(ERR_PARAM);
}
fclose(listfile);
break;
case 'W':
txweight = atoi(optarg);
if ((txweight < 110) || (txweight > 10000)) {
fprintf(stderr, "Invalid txweight\n");
exit(ERR_PARAM);
}
break;
case 'N':
max_nak_pct = atoi(optarg);
if ((max_nak_pct < 0) || (max_nak_pct > 100)) {
fprintf(stderr, "Invalid max_nak_pct\n");
exit(ERR_PARAM);
}
break;
case '?':
fprintf(stderr, USAGE);
exit(ERR_PARAM);
}
}
argc -= optind;
argv += optind;
if ((argc == 0) && (filecount == 0)) {
fprintf(stderr, USAGE);
exit(ERR_PARAM);
}
if (save_fail && sync_mode) {
fprintf(stderr, "Error: Cannot use restart mode "
"and sync mode together\n");
exit(ERR_PARAM);
}
if (keytype == KEY_NONE) {
hashtype = HASH_NONE;
sigtype = SIG_NONE;
keyextype = KEYEX_NONE;
}
if (is_auth_enc(keytype)) {
sigtype = SIG_AUTHENC;
}
if (strcmp(keylenstr, "")) {
if (keyextype == KEYEX_ECDH_ECDSA) {
ecdsa_curve = get_curve(keylenstr);
if (ecdsa_curve == 0) {
fprintf(stderr, "Invalid curve\n");
exit(ERR_PARAM);
}
} else if ((keyextype == KEYEX_RSA) || (keyextype == KEYEX_ECDH_RSA)) {
newkeylen = atoi(keylenstr);
if ((newkeylen < 512) || (newkeylen > 2048)) {
fprintf(stderr, "Invalid new key length\n");
exit(ERR_PARAM);
}
}
}
if (filecount != 0) {
if (argc > 0) {
fprintf(stderr, "Warning: ignoring paths "
"specified on command line\n");
}
return;
}
// Read list of files.
for (i = 0; i < argc; i++) {
if (filecount == MAXFILES) {
fprintf(stderr, "Exceeded maximum file count\n");
exit(ERR_PARAM);
}
strncpy(filelist[filecount], argv[i], sizeof(filelist[0])-1);
filelist[filecount][sizeof(filelist[0])-1] = '\x0';
filecount++;
}
}
/**
* Set argument defaults, read and validate command line options
*/
void process_args(int argc, char *argv[])
{
struct addrinfo ai_hints, *ai_rval;
int c, i, listidx, rval;
long tmpval;
char *p, *p2, *hoststr, *portstr, pubname[INET6_ADDRSTRLEN];
const char opts[] = "s:crdx:p:t:Q:N:O:U:q:mh:H:g:n:B:L:P:C:S:e:k:K:I:M:";
set_defaults();
srand((unsigned int)time(NULL) ^ getpid());
// read lettered arguments
while ((c = getopt(argc, argv, opts)) != EOF) {
switch (c) {
case 's':
if (proxy_type != UNDEF_PROXY) {
fprintf(stderr, "Only one of -s, -c, -r may be specified\n");
exit(ERR_PARAM);
}
proxy_type = SERVER_PROXY;
memset(&down_addr, 0, sizeof(down_addr));
if (!strncmp(optarg, "fp=", 3)) {
have_down_fingerprint =
parse_fingerprint(down_fingerprint, optarg + 3);
if (!have_down_fingerprint) {
fprintf(stderr, "Failed to parse downstream fingerprint\n");
exit(ERR_PARAM);
}
down_nonce = rand32();
} else {
have_down_fingerprint = 0;
memset(&ai_hints, 0, sizeof(ai_hints));
ai_hints.ai_family = AF_UNSPEC;
ai_hints.ai_socktype = SOCK_DGRAM;
ai_hints.ai_protocol = 0;
ai_hints.ai_flags = 0;
if ((rval = getaddrinfo(optarg, NULL, &ai_hints,
&ai_rval)) != 0) {
fprintf(stderr, "Invalid host name: %s: %s\n",
optarg, gai_strerror(rval));
exit(ERR_PARAM);
}
memcpy(&down_addr, ai_rval->ai_addr, ai_rval->ai_addrlen);
freeaddrinfo(ai_rval);
}
break;
case 'c':
if (proxy_type != UNDEF_PROXY) {
fprintf(stderr, "Only one of -s, -c, -r may be specified\n");
exit(ERR_PARAM);
}
proxy_type = CLIENT_PROXY;
break;
case 'r':
if (proxy_type != UNDEF_PROXY) {
fprintf(stderr, "Only one of -s, -c, -r may be specified\n");
exit(ERR_PARAM);
}
proxy_type = RESPONSE_PROXY;
break;
case 'd':
debug = 1;
break;
case 'x':
log_level = atoi(optarg);
if (log_level < 0) {
fprintf(stderr, "Invalid log level\n");
exit(ERR_PARAM);
}
break;
case 'p':
strncpy(portname, optarg, sizeof(portname)-1);
portname[sizeof(portname)-1] = '\x0';
port = atoi(portname);
if (port == 0) {
fprintf(stderr, "Invalid port\n");
exit(ERR_PARAM);
}
break;
case 't':
tmpval = atoi(optarg);
if ((tmpval <= 0) || (tmpval > 255)) {
fprintf(stderr, "Invalid ttl\n");
exit(ERR_PARAM);
}
ttl = (char)tmpval;
break;
case 'Q':
tmpval = strtol(optarg, NULL, 0);
if ((tmpval < 0) || (tmpval > 63)) {
fprintf(stderr, "Invalid dscp\n");
exit(ERR_PARAM);
}
dscp = (tmpval & 0xFF) << 2;
break;
case 'N':
priority = atoi(optarg);
if (!valid_priority(priority)) {
fprintf(stderr, "Invalid priority value\n");
exit(ERR_PARAM);
}
break;
case 'O':
if ((listidx = getifbyname(optarg, ifl, ifl_len)) != -1) {
out_if = ifl[listidx];
break;
}
memset(&ai_hints, 0, sizeof(ai_hints));
ai_hints.ai_family = AF_UNSPEC;
ai_hints.ai_socktype = SOCK_DGRAM;
ai_hints.ai_protocol = 0;
ai_hints.ai_flags = 0;
if ((rval = getaddrinfo(optarg, NULL, &ai_hints, &ai_rval)) != 0) {
fprintf(stderr, "Invalid name/address %s: %s\n",
optarg, gai_strerror(rval));
exit(ERR_PARAM);
}
// Just use the first addrinfo entry
if ((listidx = getifbyaddr((union sockaddr_u *)ai_rval->ai_addr,
ifl, ifl_len)) == -1) {
fprintf(stderr, "Interface %s not found", optarg);
exit(ERR_PARAM);
}
out_if = ifl[listidx];
freeaddrinfo(ai_rval);
break;
case 'U':
errno = 0;
uid = strtoul(optarg, NULL, 16);
if (errno) {
perror("Invalid UID\n");
exit(ERR_PARAM);
}
uid = htonl(uid);
break;
case 'q':
strncpy(out_portname, optarg, sizeof(out_portname)-1);
out_portname[sizeof(out_portname)-1] = '\x0';
out_port = atoi(out_portname);
if (out_port == 0) {
fprintf(stderr, "Invalid outgoing port\n");
exit(ERR_PARAM);
}
break;
case 'm':
sys_keys = 1;
break;
case 'H':
p = strtok(optarg, ",");
while (p != NULL) {
p2 = strchr(p, ':');
if (p2) {
hoststr = strdup(p);
hoststr[p2 - p] = '\x0';
portstr = p2 + 1;
} else {
hoststr = p;
portstr = NULL;
}
memset(&ai_hints, 0, sizeof(ai_hints));
ai_hints.ai_family = AF_UNSPEC;
ai_hints.ai_socktype = SOCK_DGRAM;
ai_hints.ai_protocol = 0;
ai_hints.ai_flags = 0;
if ((rval = getaddrinfo(hoststr, portstr ? portstr : DEF_PORT,
&ai_hints, &ai_rval)) != 0) {
fprintf(stderr, "Invalid name/address %s: %s\n",
hoststr, gai_strerror(rval));
exit(ERR_PARAM);
}
memcpy(&hb_hosts[hbhost_count++], ai_rval->ai_addr,
ai_rval->ai_addrlen);
p = strtok(NULL, ",");
}
break;
case 'h':
hb_interval = atoi(optarg);
if ((hb_interval <= 0) || (hb_interval > 3600)) {
fprintf(stderr, "Invalid heartbeat interval\n");
exit(ERR_PARAM);
}
break;
case 'g':
max_log_size = atoi(optarg);
if ((max_log_size < 1) || (max_log_size > 1024)) {
fprintf(stderr, "Invalid max log size\n");
exit(ERR_PARAM);
}
max_log_size *= 1000000;
break;
case 'n':
max_log_count = atoi(optarg);
if ((max_log_count < 1) || (max_log_count > 1000)) {
fprintf(stderr, "Invalid max log count\n");
exit(ERR_PARAM);
}
break;
case 'B':
rcvbuf = atoi(optarg);
if ((rcvbuf < 65536) || (rcvbuf > 104857600)) {
fprintf(stderr, "Invalid buffer size\n");
exit(ERR_PARAM);
}
break;
case 'L':
strncpy(logfile, optarg, sizeof(logfile)-1);
logfile[sizeof(logfile)-1] = '\x0';
break;
case 'P':
strncpy(pidfile, optarg, sizeof(pidfile)-1);
pidfile[sizeof(pidfile)-1] = '\x0';
break;
case 'C':
add_hosts_by_name(client_fp, &client_fp_count, optarg, 0);
break;
case 'S':
add_hosts_by_name(server_fp, &server_fp_count, optarg, 1);
break;
case 'e':
ecdh_curve = get_curve(optarg);
if (ecdh_curve == 0) {
fprintf(stderr, "Invalid curve\n");
exit(ERR_PARAM);
}
break;
case 'k':
p = strtok(optarg, ",");
while (p != NULL) {
strncpy(keyfile[keyfile_count], p, sizeof(keyfile[0])-1);
keyfile[keyfile_count][sizeof(keyfile[0])-1] = '\x0';
keyfile_count++;
p = strtok(NULL, ",");
}
break;
case 'K':
p = strtok(optarg, ",");
while (p != NULL) {
strncpy(keyinfo[keyinfo_count], p, sizeof(keyinfo[0])-1);
keyinfo[keyinfo_count][sizeof(keyinfo[0])-1] = '\x0';
keyinfo_count++;
p = strtok(NULL, ",");
}
break;
case 'I':
p = strtok(optarg, ",");
while (p != NULL) {
if ((listidx = getifbyname(p, ifl, ifl_len)) != -1) {
m_interface[interface_count++] = ifl[listidx];
p = strtok(NULL, ",");
continue;
}
memset(&ai_hints, 0, sizeof(ai_hints));
ai_hints.ai_family = AF_UNSPEC;
ai_hints.ai_socktype = SOCK_DGRAM;
ai_hints.ai_protocol = 0;
ai_hints.ai_flags = 0;
if ((rval = getaddrinfo(p, NULL,
&ai_hints, &ai_rval)) != 0) {
fprintf(stderr, "Invalid name/address %s: %s\n",
p, gai_strerror(rval));
exit(ERR_PARAM);
}
if ((listidx = getifbyaddr((union sockaddr_u *)ai_rval->ai_addr,
ifl, ifl_len)) == -1) {
fprintf(stderr, "Interface %s not found\n", p);
exit(ERR_PARAM);
}
m_interface[interface_count++] = ifl[listidx];
freeaddrinfo(ai_rval);
p = strtok(NULL, ",");
}
break;
case 'M':
p = strtok(optarg, ",");
while (p != NULL) {
memset(&ai_hints, 0, sizeof(ai_hints));
ai_hints.ai_family = AF_UNSPEC;
ai_hints.ai_socktype = SOCK_DGRAM;
ai_hints.ai_protocol = 0;
ai_hints.ai_flags = 0;
if ((rval = getaddrinfo(p, NULL,
&ai_hints, &ai_rval)) != 0) {
fprintf(stderr, "Invalid multicast address %s: %s\n",
p, gai_strerror(rval));
exit(ERR_PARAM);
}
memcpy(&pub_multi[pub_multi_count], ai_rval->ai_addr,
ai_rval->ai_addrlen);
pub_multi_count++;
freeaddrinfo(ai_rval);
p = strtok(NULL, ",");
}
break;
case '?':
fprintf(stderr, USAGE);
exit(ERR_PARAM);
}
}
if (proxy_type == UNDEF_PROXY) {
fprintf(stderr, "Either -s, -c, or -r must be specified\n");
fprintf(stderr, USAGE);
exit(ERR_PARAM);
}
if (proxy_type == RESPONSE_PROXY) {
out_port = port;
}
if (proxy_type == SERVER_PROXY) {
if (down_addr.ss.ss_family == AF_INET6) {
down_addr.sin6.sin6_port = htons(out_port);
} else {
down_addr.sin.sin_port = htons(out_port);
}
}
if (proxy_type != CLIENT_PROXY) {
if (server_fp_count) {
for (i = 0; i < pub_multi_count; i++) {
if (!is_multicast(&pub_multi[i], 1)) {
if ((rval = getnameinfo((struct sockaddr *)&pub_multi[i],
family_len(pub_multi[i]), pubname, sizeof(pubname),
NULL, 0, NI_NUMERICHOST)) != 0) {
fprintf(stderr,"getnameinfo failed: %s",
gai_strerror(rval));
}
fprintf(stderr, "Invalid source specific "
"multicast address: %s\n", pubname);
exit(ERR_PARAM);
}
}
if (pub_multi_count == 0) {
fprintf(stderr, "Default multicast address %s invalid "
"for source specific multicast\n", DEF_PUB_MULTI);
exit(ERR_PARAM);
}
}
}
if ((keyfile_count != 0) && (keyinfo_count != 0) &&
(keyfile_count != keyinfo_count)) {
fprintf(stderr, "Must list same number of items for -k and -K\n");
exit(ERR_PARAM);
}
for (i = 0; i < pub_multi_count; i++) {
if (pub_multi[i].ss.ss_family == AF_INET6) {
pub_multi[i].sin6.sin6_port = htons(out_port);
} else {
pub_multi[i].sin.sin_port = htons(out_port);
}
}
}
