int main(int argc, char *argv[])
{
char **spp, *master_ifname, *slave_ifname;
int c, i, rv;
int res = 0;
int exclusive = 0;
while ((c = getopt_long(argc, argv, "acdfhuvV", longopts, 0)) != EOF) {
switch (c) {
case 'a': opt_a++; exclusive++; break;
case 'c': opt_c++; exclusive++; break;
case 'd': opt_d++; exclusive++; break;
case 'f': opt_f++; exclusive++; break;
case 'h': opt_h++; exclusive++; break;
case 'u': opt_u++; exclusive++; break;
case 'v': opt_v++; break;
case 'V': opt_V++; exclusive++; break;
case '?':
fprintf(stderr, "%s", usage_msg);
res = 2;
goto out;
}
}
/* */
if (exclusive > 1) {
fprintf(stderr, "%s", usage_msg);
res = 2;
goto out;
}
if (opt_v || opt_V) {
printf("%s", version);
if (opt_V) {
res = 0;
goto out;
}
}
if (opt_u) {
printf("%s", usage_msg);
res = 0;
goto out;
}
if (opt_h) {
printf("%s", usage_msg);
printf("%s", help_msg);
res = 0;
goto out;
}
/* */
if ((skfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
perror("socket");
res = 1;
goto out;
}
if (opt_a) {
if (optind == argc) {
/* */
/* */
if_print((char *)NULL);
goto out;
} else {
/* */
fprintf(stderr, "%s", usage_msg);
res = 2;
goto out;
}
}
/* */
spp = argv + optind;
master_ifname = *spp++;
if (master_ifname == NULL) {
fprintf(stderr, "%s", usage_msg);
res = 2;
goto out;
}
/* */
res = get_drv_info(master_ifname);
if (res) {
fprintf(stderr,
"Master '%s': Error: handshake with driver failed. "
"Aborting\n",
master_ifname);
goto out;
}
slave_ifname = *spp++;
if (slave_ifname == NULL) {
if (opt_d || opt_c) {
fprintf(stderr, "%s", usage_msg);
res = 2;
goto out;
}
/*
*/
if_print(master_ifname);
goto out;
}
res = get_if_settings(master_ifname, master_ifra);
if (res) {
/* */
fprintf(stderr,
"Master '%s': Error: get settings failed: %s. "
"Aborting\n",
master_ifname, strerror(res));
goto out;
}
/*
*/
if (!(master_flags.ifr_flags & IFF_MASTER)) {
fprintf(stderr,
"Illegal operation; the specified interface '%s' "
"is not a master. Aborting\n",
master_ifname);
res = 1;
goto out;
}
/* */
if (!(master_flags.ifr_flags & IFF_UP)) {
fprintf(stderr,
"Illegal operation; the specified master interface "
"'%s' is not up.\n",
master_ifname);
res = 1;
goto out;
}
/* */
if (!opt_c && !opt_d) {
sa_family_t master_family = master_hwaddr.ifr_hwaddr.sa_family;
unsigned char *hwaddr =
(unsigned char *)master_hwaddr.ifr_hwaddr.sa_data;
/* */
if (master_family != 1 && !opt_f) {
fprintf(stderr,
"Illegal operation: The specified master "
"interface '%s' is not ethernet-like.\n "
"This program is designed to work with "
"ethernet-like network interfaces.\n "
"Use the '-f' option to force the "
"operation.\n",
master_ifname);
res = 1;
goto out;
}
/* */
for (i = 0; i < 6; i++) {
if (hwaddr[i] != 0) {
hwaddr_set = 1;
break;
}
}
if (hwaddr_set) {
v_print("current hardware address of master '%s' "
"is %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
"type %d\n",
master_ifname,
hwaddr[0], hwaddr[1],
hwaddr[2], hwaddr[3],
hwaddr[4], hwaddr[5],
master_family);
}
}
/* */
if (opt_c) {
/* */
res = get_slave_flags(slave_ifname);
if (res) {
fprintf(stderr,
"Slave '%s': Error: get flags failed. "
"Aborting\n",
slave_ifname);
goto out;
}
res = change_active(master_ifname, slave_ifname);
if (res) {
fprintf(stderr,
"Master '%s', Slave '%s': Error: "
"Change active failed\n",
master_ifname, slave_ifname);
}
} else {
/* */
do {
if (opt_d) {
/* */
rv = get_slave_flags(slave_ifname);
if (rv) {
/* */
/* */
fprintf(stderr,
"Slave '%s': Error: get flags "
"failed. Skipping\n",
slave_ifname);
res = rv;
continue;
}
rv = release(master_ifname, slave_ifname);
if (rv) {
fprintf(stderr,
"Master '%s', Slave '%s': Error: "
"Release failed\n",
master_ifname, slave_ifname);
res = rv;
}
} else {
/* */
rv = get_if_settings(slave_ifname, slave_ifra);
if (rv) {
/* */
/* */
fprintf(stderr,
"Slave '%s': Error: get "
"settings failed: %s. "
"Skipping\n",
slave_ifname, strerror(rv));
res = rv;
continue;
}
rv = enslave(master_ifname, slave_ifname);
if (rv) {
fprintf(stderr,
"Master '%s', Slave '%s': Error: "
"Enslave failed\n",
master_ifname, slave_ifname);
res = rv;
}
}
} while ((slave_ifname = *spp++) != NULL);
}
out:
if (skfd >= 0) {
close(skfd);
}
return res;
}
int main(int argc, char *argv[])
{
char **spp, *master_ifname, *slave_ifname;
int c, i, rv;
int res = 0;
int exclusive = 0;
while ((c = getopt_long(argc, argv, "acdfhuvV", longopts, 0)) != EOF) {
switch (c) {
case 'a': opt_a++; exclusive++; break;
case 'c': opt_c++; exclusive++; break;
case 'd': opt_d++; exclusive++; break;
case 'f': opt_f++; exclusive++; break;
case 'h': opt_h++; exclusive++; break;
case 'u': opt_u++; exclusive++; break;
case 'v': opt_v++; break;
case 'V': opt_V++; exclusive++; break;
case '?':
fprintf(stderr, usage_msg);
res = 2;
goto out;
}
}
/* options check */
if (exclusive > 1) {
fprintf(stderr, usage_msg);
res = 2;
goto out;
}
if (opt_v || opt_V) {
printf(version);
if (opt_V) {
res = 0;
goto out;
}
}
if (opt_u) {
printf(usage_msg);
res = 0;
goto out;
}
if (opt_h) {
printf(usage_msg);
printf(help_msg);
res = 0;
goto out;
}
/* Open a basic socket */
if ((skfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
perror("socket");
res = 1;
goto out;
}
if (opt_a) {
if (optind == argc) {
/* No remaining args */
/* show all interfaces */
if_print((char *)NULL);
goto out;
} else {
/* Just show usage */
fprintf(stderr, usage_msg);
res = 2;
goto out;
}
}
/* Copy the interface name */
spp = argv + optind;
master_ifname = *spp++;
if (master_ifname == NULL) {
fprintf(stderr, usage_msg);
res = 2;
goto out;
}
/* exchange abi version with bonding module */
res = get_drv_info(master_ifname);
if (res) {
fprintf(stderr,
"Master '%s': Error: handshake with driver failed. "
"Aborting\n",
master_ifname);
goto out;
}
slave_ifname = *spp++;
if (slave_ifname == NULL) {
if (opt_d || opt_c) {
fprintf(stderr, usage_msg);
res = 2;
goto out;
}
/* A single arg means show the
* configuration for this interface
*/
if_print(master_ifname);
goto out;
}
res = get_if_settings(master_ifname, master_ifra);
if (res) {
/* Probably a good reason not to go on */
fprintf(stderr,
"Master '%s': Error: get settings failed: %s. "
"Aborting\n",
master_ifname, strerror(res));
goto out;
}
/* check if master is indeed a master;
* if not then fail any operation
*/
if (!(master_flags.ifr_flags & IFF_MASTER)) {
fprintf(stderr,
"Illegal operation; the specified interface '%s' "
"is not a master. Aborting\n",
master_ifname);
res = 1;
goto out;
}
/* check if master is up; if not then fail any operation */
if (!(master_flags.ifr_flags & IFF_UP)) {
fprintf(stderr,
"Illegal operation; the specified master interface "
"'%s' is not up.\n",
master_ifname);
res = 1;
goto out;
}
/* Only for enslaving */
if (!opt_c && !opt_d) {
sa_family_t master_family = master_hwaddr.ifr_hwaddr.sa_family;
unsigned char *hwaddr =
(unsigned char *)master_hwaddr.ifr_hwaddr.sa_data;
/* The family '1' is ARPHRD_ETHER for ethernet. */
if (master_family != 1 && !opt_f) {
fprintf(stderr,
"Illegal operation: The specified master "
"interface '%s' is not ethernet-like.\n "
"This program is designed to work with "
"ethernet-like network interfaces.\n "
"Use the '-f' option to force the "
"operation.\n",
master_ifname);
res = 1;
goto out;
}
/* Check master's hw addr */
for (i = 0; i < 6; i++) {
if (hwaddr[i] != 0) {
hwaddr_set = 1;
break;
}
}
if (hwaddr_set) {
v_print("current hardware address of master '%s' "
"is %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
"type %d\n",
master_ifname,
hwaddr[0], hwaddr[1],
hwaddr[2], hwaddr[3],
hwaddr[4], hwaddr[5],
master_family);
}
}
/* Accepts only one slave */
if (opt_c) {
/* change active slave */
res = get_slave_flags(slave_ifname);
if (res) {
fprintf(stderr,
"Slave '%s': Error: get flags failed. "
"Aborting\n",
slave_ifname);
goto out;
}
res = change_active(master_ifname, slave_ifname);
if (res) {
fprintf(stderr,
"Master '%s', Slave '%s': Error: "
"Change active failed\n",
master_ifname, slave_ifname);
}
} else {
/* Accept multiple slaves */
do {
if (opt_d) {
/* detach a slave interface from the master */
rv = get_slave_flags(slave_ifname);
if (rv) {
/* Can't work with this slave. */
/* remember the error and skip it*/
fprintf(stderr,
"Slave '%s': Error: get flags "
"failed. Skipping\n",
slave_ifname);
res = rv;
continue;
}
rv = release(master_ifname, slave_ifname);
if (rv) {
fprintf(stderr,
"Master '%s', Slave '%s': Error: "
"Release failed\n",
master_ifname, slave_ifname);
res = rv;
}
} else {
/* attach a slave interface to the master */
rv = get_if_settings(slave_ifname, slave_ifra);
if (rv) {
/* Can't work with this slave. */
/* remember the error and skip it*/
fprintf(stderr,
"Slave '%s': Error: get "
"settings failed: %s. "
"Skipping\n",
slave_ifname, strerror(rv));
res = rv;
continue;
}
rv = enslave(master_ifname, slave_ifname);
if (rv) {
fprintf(stderr,
"Master '%s', Slave '%s': Error: "
"Enslave failed\n",
master_ifname, slave_ifname);
res = rv;
}
}
} while ((slave_ifname = *spp++) != NULL);
}
out:
if (skfd >= 0) {
close(skfd);
}
return res;
}
bool Daemon::processControl( Channel channel ) {
InputMessage message;
channel->peek( message );
auto cleanup = [&] {
channel->receiveHeader( message );
};
Code code = message.tag< Code >();
switch ( code ) {
case Code::Enslave:
enslave( message, std::move( channel ) );
break;
case Code::Disconnect:
cleanup();
release( std::move( channel ) );
return false;
case Code::Peers:
startGrouping( message, std::move( channel ) );
break;
case Code::ConnectTo:
connecting( message, std::move( channel ) );
break;
case Code::Join:
join( message, std::move( channel ) );
break;
case Code::DataLine:
addDataLine( message, std::move( channel ) );
break;
case Code::Grouped:
cleanup();
grouped( std::move( channel ) );
break;
case Code::InitialData:
initData( message, std::move( channel ) );
break;
case Code::Run:
run( message, std::move( channel ) );
break;
case Code::PrepareToLeave:
cleanup();
prepare( std::move( channel ) );
break;
case Code::CutRope:
cleanup();
cutRope( std::move( channel ) );
break;
case Code::Leave:
cleanup();
leave( std::move( channel ) );
break;
case Code::Error:
cleanup();
error( std::move( channel ) );
break;
case Code::Renegade:
renegade( message, std::move( channel ) );
break;
case Code::Status:
cleanup();
status( std::move( channel ) );
break;
case Code::Shutdown:
cleanup();
shutdown( std::move( channel ) );
break;
case Code::ForceShutdown:
cleanup();
forceShutdown();
break;
case Code::ForceReset:
cleanup();
forceReset();
return false;
default:
cleanup();
throw ResponseException( {
Code::Enslave,
Code::Disconnect,
Code::Peers,
Code::ConnectTo,
Code::Join,
Code::DataLine,
Code::Grouped,
Code::InitialData,
Code::Run,
Code::PrepareToLeave,
Code::Leave,
Code::CutRope,
Code::Error,
Code::Renegade,
Code::Shutdown,
Code::ForceShutdown,
Code::ForceReset,
}, code );
break;
}
return true;
}
