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Merge branch 'ipv6_bridges_squashed'

Browse Source
This commit is contained in:
Nick Mathewson 2011-11-30 12:02:13 -05:00
commit 8cc8b016c8
25 changed files with 837 additions and 401 deletions
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7
changes/bug3786 Normal file
View File

@ -0,0 +1,7 @@
o Major features:
- Implement support for clients connecting to private bridges over
IPv6. Bridges still need at least one IPv4 address in order to
connect to other relays. Currently, adding Bridge lines with
both an IPv4 and an IPv6 address to the same bridge will most
probably result in the IPv6 address not being used. Implements
parts of proposal 186.

7
src/common/address.h
View File

@ -31,6 +31,13 @@ typedef struct tor_addr_t
} addr;
} tor_addr_t;
/** Holds an IP address and a TCP/UDP port. */
typedef struct tor_addr_port_t
{
tor_addr_t addr;
uint16_t port;
} tor_addr_port_t;
static INLINE const struct in6_addr *tor_addr_to_in6(const tor_addr_t *a);
static INLINE uint32_t tor_addr_to_ipv4n(const tor_addr_t *a);
static INLINE uint32_t tor_addr_to_ipv4h(const tor_addr_t *a);

145
src/or/circuitbuild.c
View File

@ -3012,7 +3012,7 @@ onion_pick_cpath_exit(origin_circuit_t *circ, extend_info_t *exit)
log_warn(LD_CIRC,"failed to choose an exit server");
return -1;
}
exit = extend_info_from_node(node);
exit = extend_info_from_node(node, 0);
tor_assert(exit);
}
state->chosen_exit = exit;
@ -3254,14 +3254,19 @@ onion_extend_cpath(origin_circuit_t *circ)
} else if (cur_len == 0) { /* picking first node */
const node_t *r = choose_good_entry_server(purpose, state);
if (r) {
info = extend_info_from_node(r);
/* If we're extending to a bridge, use the preferred address
rather than the primary, for potentially extending to an IPv6
bridge. */
int use_pref_addr = (r->ri != NULL &&
r->ri->purpose == ROUTER_PURPOSE_BRIDGE);
info = extend_info_from_node(r, use_pref_addr);
tor_assert(info);
}
} else {
const node_t *r =
choose_good_middle_server(purpose, state, circ->cpath, cur_len);
if (r) {
info = extend_info_from_node(r);
info = extend_info_from_node(r, 0);
tor_assert(info);
}
}
@ -3320,28 +3325,36 @@ extend_info_alloc(const char *nickname, const char *digest,
return info;
}
/** Allocate and return a new extend_info_t that can be used to build a
* circuit to or through the router <b>r</b>. */
/** Allocate and return a new extend_info_t that can be used to build
* a circuit to or through the router <b>r</b>. Use the primary
* address of the router unless <b>for_direct_connect</b> is true, in
* which case the preferred address is used instead. */
extend_info_t *
extend_info_from_router(const routerinfo_t *r)
extend_info_from_router(const routerinfo_t *r, int for_direct_connect)
{
tor_addr_t addr;
tor_addr_port_t ap;
tor_assert(r);
tor_addr_from_ipv4h(&addr, r->addr);
if (for_direct_connect)
router_get_pref_orport(r, &ap);
else
router_get_prim_orport(r, &ap);
return extend_info_alloc(r->nickname, r->cache_info.identity_digest,
r->onion_pkey, &addr, r->or_port);
r->onion_pkey, &ap.addr, ap.port);
}
/** Allocate and return a new extend_info that can be used to build a ircuit
* to or through the node <b>node</b>. May return NULL if there is not
* enough info about <b>node</b> to extend to it--for example, if there
* is no routerinfo_t or microdesc_t.
/** Allocate and return a new extend_info that can be used to build a
* ircuit to or through the node <b>node</b>. Use the primary address
* of the node unless <b>for_direct_connect</b> is true, in which case
* the preferred address is used instead. May return NULL if there is
* not enough info about <b>node</b> to extend to it--for example, if
* there is no routerinfo_t or microdesc_t.
**/
extend_info_t *
extend_info_from_node(const node_t *node)
extend_info_from_node(const node_t *node, int for_direct_connect)
{
if (node->ri) {
return extend_info_from_router(node->ri);
return extend_info_from_router(node->ri, for_direct_connect);
} else if (node->rs && node->md) {
tor_addr_t addr;
tor_addr_from_ipv4h(&addr, node->rs->addr);
@ -4841,10 +4854,11 @@ get_configured_bridge_by_addr_port_digest(const tor_addr_t *addr,
static bridge_info_t *
get_configured_bridge_by_routerinfo(const routerinfo_t *ri)
{
tor_addr_t addr;
tor_addr_from_ipv4h(&addr, ri->addr);
return get_configured_bridge_by_addr_port_digest(&addr,
ri->or_port, ri->cache_info.identity_digest);
tor_addr_port_t ap;
router_get_pref_orport(ri, &ap);
return get_configured_bridge_by_addr_port_digest(&ap.addr, ap.port,
ri->cache_info.identity_digest);
}
/** Return 1 if <b>ri</b> is one of our known bridges, else 0. */
@ -4858,18 +4872,31 @@ routerinfo_is_a_configured_bridge(const routerinfo_t *ri)
int
node_is_a_configured_bridge(const node_t *node)
{
tor_addr_t addr;
uint16_t orport;
if (!node)
return 0;
if (node_get_addr(node, &addr) < 0)
return 0;
orport = node_get_orport(node);
if (orport == 0)
return 0;
int retval = 0; /* Negative. */
smartlist_t *orports = NULL;
return get_configured_bridge_by_addr_port_digest(
&addr, orport, node->identity) != NULL;
if (!node)
goto out;
orports = node_get_all_orports(node);
if (orports == NULL)
goto out;
SMARTLIST_FOREACH_BEGIN(orports, tor_addr_port_t *, orport) {
if (get_configured_bridge_by_addr_port_digest(&orport->addr, orport->port,
node->identity) != NULL) {
retval = 1;
goto out;
}
} SMARTLIST_FOREACH_END(orport);
out:
if (orports != NULL) {
SMARTLIST_FOREACH(orports, tor_addr_port_t *, p, tor_free(p));
smartlist_free(orports);
orports = NULL;
}
return retval;
}
/** We made a connection to a router at <b>addr</b>:<b>port</b>
@ -5123,18 +5150,52 @@ rewrite_node_address_for_bridge(const bridge_info_t *bridge, node_t *node)
routerinfo_t *ri = node->ri;
tor_addr_from_ipv4h(&addr, ri->addr);
if (!tor_addr_compare(&bridge->addr, &addr, CMP_EXACT) &&
bridge->port == ri->or_port) {
if ((!tor_addr_compare(&bridge->addr, &addr, CMP_EXACT) &&
bridge->port == ri->or_port) ||
(!tor_addr_compare(&bridge->addr, &ri->ipv6_addr, CMP_EXACT) &&
bridge->port == ri->ipv6_orport)) {
/* they match, so no need to do anything */
} else {
ri->addr = tor_addr_to_ipv4h(&bridge->addr);
tor_free(ri->address);
ri->address = tor_dup_ip(ri->addr);
ri->or_port = bridge->port;
log_info(LD_DIR,
"Adjusted bridge routerinfo for '%s' to match configured "
"address %s:%d.",
ri->nickname, ri->address, ri->or_port);
if (tor_addr_family(&bridge->addr) == AF_INET) {
ri->addr = tor_addr_to_ipv4h(&bridge->addr);
tor_free(ri->address);
ri->address = tor_dup_ip(ri->addr);
ri->or_port = bridge->port;
log_info(LD_DIR,
"Adjusted bridge routerinfo for '%s' to match configured "
"address %s:%d.",
ri->nickname, ri->address, ri->or_port);
} else if (tor_addr_family(&bridge->addr) == AF_INET6) {
tor_addr_copy(&ri->ipv6_addr, &bridge->addr);
ri->ipv6_orport = bridge->port;
log_info(LD_DIR,
"Adjusted bridge routerinfo for '%s' to match configured "
"address %s:%d.",
ri->nickname, fmt_addr(&ri->ipv6_addr), ri->ipv6_orport);
} else {
log_err(LD_BUG, "Address family not supported: %d.",
tor_addr_family(&bridge->addr));
return;
}
}
/* Indicate that we prefer connecting to this bridge over the
protocol that the bridge address indicates. Last bridge
descriptor handled wins. */
ri->ipv6_preferred = tor_addr_family(&bridge->addr) == AF_INET6;
/* XXXipv6 we lack support for falling back to another address for
the same relay, warn the user */
if (!tor_addr_is_null(&ri->ipv6_addr))
{
tor_addr_port_t ap;
router_get_pref_orport(ri, &ap);
log_notice(LD_CONFIG,
"Bridge '%s' has both an IPv4 and an IPv6 address. "
"Will prefer using its %s address (%s:%d).",
ri->nickname,
ri->ipv6_preferred ? "IPv6" : "IPv4",
fmt_addr(&ap.addr), ap.port);
}
}
if (node->rs) {
@ -5179,8 +5240,8 @@ learned_bridge_descriptor(routerinfo_t *ri, int from_cache)
rewrite_node_address_for_bridge(bridge, node);
add_an_entry_guard(node, 1, 1);
log_notice(LD_DIR, "new bridge descriptor '%s' (%s)", ri->nickname,
from_cache ? "cached" : "fresh");
log_notice(LD_DIR, "new bridge descriptor '%s' (%s): %s", ri->nickname,
from_cache ? "cached" : "fresh", router_describe(ri));
/* set entry->made_contact so if it goes down we don't drop it from
* our entry node list */
entry_guard_register_connect_status(ri->cache_info.identity_digest,

6
src/or/circuitbuild.h
View File

@ -59,8 +59,10 @@ void onion_append_to_cpath(crypt_path_t **head_ptr, crypt_path_t *new_hop);
extend_info_t *extend_info_alloc(const char *nickname, const char *digest,
crypto_pk_env_t *onion_key,
const tor_addr_t *addr, uint16_t port);
extend_info_t *extend_info_from_router(const routerinfo_t *r);
extend_info_t *extend_info_from_node(const node_t *node);
extend_info_t *extend_info_from_router(const routerinfo_t *r,
int for_direct_connect);
extend_info_t *extend_info_from_node(const node_t *node,
int for_direct_connect);
extend_info_t *extend_info_dup(extend_info_t *info);
void extend_info_free(extend_info_t *info);
const node_t *build_state_get_exit_node(cpath_build_state_t *state);

5
src/or/circuituse.c
View File

@ -1439,7 +1439,10 @@ circuit_get_open_circ_or_launch(entry_connection_t *conn,
int opt = conn->chosen_exit_optional;
r = node_get_by_nickname(conn->chosen_exit_name, 1);
if (r && node_has_descriptor(r)) {
extend_info = extend_info_from_node(r);
/* We might want to connect to an IPv6 bridge for loading
descriptors so we use the preferred address rather than
the primary. */
extend_info = extend_info_from_node(r, conn->want_onehop ? 1 : 0);
} else {
log_debug(LD_DIR, "considering %d, %s",
want_onehop, conn->chosen_exit_name);

568
src/or/config.c
View File

@ -220,7 +220,7 @@ static config_var_t _option_vars[] = {
V(ConstrainedSockSize, MEMUNIT, "8192"),
V(ContactInfo, STRING, NULL),
V(ControlListenAddress, LINELIST, NULL),
V(ControlPort, PORT, "0"),
V(ControlPort, LINELIST, NULL),
V(ControlPortFileGroupReadable,BOOL, "0"),
V(ControlPortWriteToFile, FILENAME, NULL),
V(ControlSocket, LINELIST, NULL),
@ -237,7 +237,7 @@ static config_var_t _option_vars[] = {
V(DirListenAddress, LINELIST, NULL),
OBSOLETE("DirFetchPeriod"),
V(DirPolicy, LINELIST, NULL),
V(DirPort, PORT, "0"),
V(DirPort, LINELIST, NULL),
V(DirPortFrontPage, FILENAME, NULL),
OBSOLETE("DirPostPeriod"),
OBSOLETE("DirRecordUsageByCountry"),
@ -343,7 +343,7 @@ static config_var_t _option_vars[] = {
V(NumCPUs, UINT, "0"),
V(NumEntryGuards, UINT, "3"),
V(ORListenAddress, LINELIST, NULL),
V(ORPort, PORT, "0"),
V(ORPort, LINELIST, NULL),
V(OutboundBindAddress, STRING, NULL),
OBSOLETE("PathlenCoinWeight"),
V(PerConnBWBurst, MEMUNIT, "0"),
@ -600,8 +600,11 @@ static int parse_dir_server_line(const char *line,
dirinfo_type_t required_type,
int validate_only);
static void port_cfg_free(port_cfg_t *port);
static int parse_client_ports(const or_options_t *options, int validate_only,
static int parse_ports(const or_options_t *options, int validate_only,
char **msg_out, int *n_ports_out);
static int check_server_ports(const smartlist_t *ports,
const or_options_t *options);
static int validate_data_directory(or_options_t *options);
static int write_configuration_file(const char *fname,
const or_options_t *options);
@ -614,9 +617,6 @@ static int or_state_validate(or_state_t *old_options, or_state_t *options,
static int or_state_load(void);
static int options_init_logs(or_options_t *options, int validate_only);
static int is_listening_on_low_port(int port_option,
const config_line_t *listen_options);
static uint64_t config_parse_memunit(const char *s, int *ok);
static int config_parse_msec_interval(const char *s, int *ok);
static int config_parse_interval(const char *s, int *ok);
@ -675,8 +675,8 @@ static or_state_t *global_state = NULL;
static config_line_t *global_cmdline_options = NULL;
/** Contents of most recently read DirPortFrontPage file. */
static char *global_dirfrontpagecontents = NULL;
/** List of port_cfg_t for client-level (SOCKS, DNS, Trans, NATD) ports. */
static smartlist_t *configured_client_ports = NULL;
/** List of port_cfg_t for all configured ports. */
static smartlist_t *configured_ports = NULL;
/** Return the contents of our frontpage string, or NULL if not configured. */
const char *
@ -821,11 +821,11 @@ config_free_all(void)
config_free_lines(global_cmdline_options);
global_cmdline_options = NULL;
if (configured_client_ports) {
SMARTLIST_FOREACH(configured_client_ports,
if (configured_ports) {
SMARTLIST_FOREACH(configured_ports,
port_cfg_t *, p, tor_free(p));
smartlist_free(configured_client_ports);
configured_client_ports = NULL;
smartlist_free(configured_ports);
configured_ports = NULL;
}
tor_free(torrc_fname);
@ -1075,7 +1075,7 @@ options_act_reversible(const or_options_t *old_options, char **msg)
#endif
if (running_tor) {
int n_client_ports=0;
int n_ports=0;
/* We need to set the connection limit before we can open the listeners. */
if (set_max_file_descriptors((unsigned)options->ConnLimit,
&options->_ConnLimit) < 0) {
@ -1091,10 +1091,10 @@ options_act_reversible(const or_options_t *old_options, char **msg)
libevent_initialized = 1;
}
/* Adjust the client port configuration so we can launch listeners. */
if (parse_client_ports(options, 0, msg, &n_client_ports)) {
/* Adjust the port configuration so we can launch listeners. */
if (parse_ports(options, 0, msg, &n_ports)) {
if (!*msg)
*msg = tor_strdup("Unexpected problem parsing client port config");
*msg = tor_strdup("Unexpected problem parsing port config");
goto rollback;
}
@ -1555,7 +1555,7 @@ options_act(const or_options_t *old_options)
int was_relay = 0;
if (options->BridgeRelay) {
time_t int_start = time(NULL);
if (old_options->ORPort == options->ORPort) {
if (config_lines_eq(old_options->ORPort, options->ORPort)) {
int_start += RELAY_BRIDGE_STATS_DELAY;
was_relay = 1;
}
@ -3034,37 +3034,6 @@ options_init(or_options_t *options)
config_init(&options_format, options);
}
/* Check if the port number given in <b>port_option</b> in combination with
* the specified port in <b>listen_options</b> will result in Tor actually
* opening a low port (meaning a port lower than 1024). Return 1 if
* it is, or 0 if it isn't or the concept of a low port isn't applicable for
* the platform we're on. */
static int
is_listening_on_low_port(int port_option,
const config_line_t *listen_options)
{
#ifdef MS_WINDOWS
(void) port_option;
(void) listen_options;
return 0; /* No port is too low for windows. */
#else
const config_line_t *l;
uint16_t p;
if (port_option == 0)
return 0; /* We're not listening */
if (listen_options == NULL)
return (port_option < 1024);
for (l = listen_options; l; l = l->next) {
addr_port_lookup(LOG_WARN, l->value, NULL, NULL, &p);
if (p<1024) {
return 1;
}
}
return 0;
#endif
}
/** Set all vars in the configuration object <b>options</b> to their default
* values. */
static void
@ -3290,7 +3259,7 @@ options_validate(or_options_t *old_options, or_options_t *options,
int i;
config_line_t *cl;
const char *uname = get_uname();
int n_client_ports=0;
int n_ports=0;
#define REJECT(arg) \
STMT_BEGIN *msg = tor_strdup(arg); return -1; STMT_END
#define COMPLAIN(arg) STMT_BEGIN log(LOG_WARN, LD_CONFIG, arg); STMT_END
@ -3308,13 +3277,7 @@ options_validate(or_options_t *old_options, or_options_t *options,
"for details.", uname);
}
if (options->ORPort == 0 && options->ORListenAddress != NULL)
REJECT("ORPort must be defined if ORListenAddress is defined.");
if (options->DirPort == 0 && options->DirListenAddress != NULL)
REJECT("DirPort must be defined if DirListenAddress is defined.");
if (parse_client_ports(options, 1, msg, &n_client_ports) < 0)
if (parse_ports(options, 1, msg, &n_ports) < 0)
return -1;
if (validate_data_directory(options)<0)
@ -3361,7 +3324,9 @@ options_validate(or_options_t *old_options, or_options_t *options,
REJECT("Can't use a relative path to torrc when RunAsDaemon is set.");
#endif
if (n_client_ports == 0 && options->ORPort == 0 && !options->RendConfigLines)
/* XXXX require that the only port not be DirPort? */
/* XXXX require that at least one port be listened-upon. */
if (n_ports == 0 && !options->RendConfigLines)
log(LOG_WARN, LD_CONFIG,
"SocksPort, TransPort, NATDPort, DNSPort, and ORPort are all "
"undefined, and there aren't any hidden services configured. "
@ -3377,19 +3342,6 @@ options_validate(or_options_t *old_options, or_options_t *options,
REJECT("TokenBucketRefillInterval must be between 1 and 1000 inclusive.");
}
if (options->AccountingMax &&
(is_listening_on_low_port(options->ORPort, options->ORListenAddress) ||
is_listening_on_low_port(options->DirPort, options->DirListenAddress)))
{
log(LOG_WARN, LD_CONFIG,
"You have set AccountingMax to use hibernation. You have also "
"chosen a low DirPort or OrPort. This combination can make Tor stop "
"working when it tries to re-attach the port after a period of "
"hibernation. Please choose a different port or turn off "
"hibernation unless you know this combination will work on your "
"platform.");
}
if (options->ExcludeExitNodes || options->ExcludeNodes) {
options->_ExcludeExitNodesUnion = routerset_new();
routerset_union(options->_ExcludeExitNodesUnion,options->ExcludeExitNodes);
@ -3643,7 +3595,8 @@ options_validate(or_options_t *old_options, or_options_t *options,
if (options->BridgeRelay && options->DirPort) {
log_warn(LD_CONFIG, "Can't set a DirPort on a bridge relay; disabling "
"DirPort");
options->DirPort = 0;
config_free_lines(options->DirPort);
options->DirPort = NULL;
}
if (options->MinUptimeHidServDirectoryV2 < 0) {
@ -3866,39 +3819,6 @@ options_validate(or_options_t *old_options, or_options_t *options,
}
}
if (options->ControlListenAddress) {
int all_are_local = 1;
config_line_t *ln;
for (ln = options->ControlListenAddress; ln; ln = ln->next) {
if (strcmpstart(ln->value, "127."))
all_are_local = 0;
}
if (!all_are_local) {
if (!options->HashedControlPassword &&
!options->HashedControlSessionPassword &&
!options->CookieAuthentication) {
log_warn(LD_CONFIG,
"You have a ControlListenAddress set to accept "
"unauthenticated connections from a non-local address. "
"This means that programs not running on your computer "
"can reconfigure your Tor, without even having to guess a "
"password. That's so bad that I'm closing your ControlPort "
"for you. If you need to control your Tor remotely, try "
"enabling authentication and using a tool like stunnel or "
"ssh to encrypt remote access.");
options->ControlPort = 0;
} else {
log_warn(LD_CONFIG, "You have a ControlListenAddress set to accept "
"connections from a non-local address. This means that "
"programs not running on your computer can reconfigure your "
"Tor. That's pretty bad, since the controller "
"protocol isn't encrypted! Maybe you should just listen on "
"127.0.0.1 and use a tool like stunnel or ssh to encrypt "
"remote connections to your control port.");
}
}
}
if (options->ControlPort && !options->HashedControlPassword &&
!options->HashedControlSessionPassword &&
!options->CookieAuthentication) {
@ -4121,8 +4041,9 @@ options_validate(or_options_t *old_options, or_options_t *options,
}
});
if (options->BridgeRelay == 1 && options->ORPort == 0)
REJECT("BridgeRelay is 1, ORPort is 0. This is an invalid combination.");
if (options->BridgeRelay == 1 && ! options->ORPort)
REJECT("BridgeRelay is 1, ORPort is not set. This is an invalid "
"combination.");
return 0;
#undef REJECT
@ -4213,7 +4134,7 @@ options_transition_affects_workers(const or_options_t *old_options,
{
if (!opt_streq(old_options->DataDirectory, new_options->DataDirectory) ||
old_options->NumCPUs != new_options->NumCPUs ||
old_options->ORPort != new_options->ORPort ||
!config_lines_eq(old_options->ORPort, new_options->ORPort) ||
old_options->ServerDNSSearchDomains !=
new_options->ServerDNSSearchDomains ||
old_options->_SafeLogging != new_options->_SafeLogging ||
@ -4243,8 +4164,8 @@ options_transition_affects_descriptor(const or_options_t *old_options,
!config_lines_eq(old_options->ExitPolicy,new_options->ExitPolicy) ||
old_options->ExitPolicyRejectPrivate !=
new_options->ExitPolicyRejectPrivate ||
old_options->ORPort != new_options->ORPort ||
old_options->DirPort != new_options->DirPort ||
!config_lines_eq(old_options->ORPort, new_options->ORPort) ||
!config_lines_eq(old_options->DirPort, new_options->DirPort) ||
old_options->ClientOnly != new_options->ClientOnly ||
old_options->DisableNetwork != new_options->DisableNetwork ||
old_options->_PublishServerDescriptor !=
@ -5380,12 +5301,53 @@ warn_nonlocal_client_ports(const smartlist_t *ports, const char *portname)
} SMARTLIST_FOREACH_END(port);
}
#define CL_PORT_NO_OPTIONS (1u<<0)
/** DOCDOC */
static void
warn_nonlocal_controller_ports(smartlist_t *ports, unsigned forbid)
{
int warned = 0;
SMARTLIST_FOREACH_BEGIN(ports, port_cfg_t *, port) {
if (port->type != CONN_TYPE_CONTROL_LISTENER)
continue;
if (port->is_unix_addr)
continue;
if (!tor_addr_is_loopback(&port->addr)) {
if (forbid) {
if (!warned)
log_warn(LD_CONFIG,
"You have a ControlPort set to accept "
"unauthenticated connections from a non-local address. "
"This means that programs not running on your computer "
"can reconfigure your Tor, without even having to guess a "
"password. That's so bad that I'm closing your ControlPort "
"for you. If you need to control your Tor remotely, try "
"enabling authentication and using a tool like stunnel or "
"ssh to encrypt remote access.");
warned = 1;
port_cfg_free(port);
SMARTLIST_DEL_CURRENT(ports, port);
} else {
log_warn(LD_CONFIG, "You have a ControlPort set to accept "
"connections from a non-local address. This means that "
"programs not running on your computer can reconfigure your "
"Tor. That's pretty bad, since the controller "
"protocol isn't encrypted! Maybe you should just listen on "
"127.0.0.1 and use a tool like stunnel or ssh to encrypt "
"remote connections to your control port.");
return; /* No point in checking the rest */
}
}
} SMARTLIST_FOREACH_END(port);
}
#define CL_PORT_NO_OPTIONS (1u<<0)
#define CL_PORT_WARN_NONLOCAL (1u<<1)
#define CL_PORT_ALLOW_EXTRA_LISTENADDR (1u<<2)
#define CL_PORT_SERVER_OPTIONS (1u<<3)
#define CL_PORT_FORBID_NONLOCAL (1u<<4)
/**
* Parse port configuration for a single client port type.
* Parse port configuration for a single port type.
*
* Read entries of the "FooPort" type from the list <b>ports</b>, and
* entries of the "FooListenAddress" type from the list
@ -5405,17 +5367,22 @@ warn_nonlocal_client_ports(const smartlist_t *ports, const char *portname)
* isolation options in the FooPort entries.
*
* If CL_PORT_WARN_NONLOCAL is set in <b>flags</b>, warn if any of the
* ports are not on a local address.
* ports are not on a local address. If CL_PORT_FORBID_NONLOCAL is set,
* this is a contrl port with no password set: don't even allow it.
*
* Unless CL_PORT_ALLOW_EXTRA_LISTENADDR is set in <b>flags</b>, warn
* if FooListenAddress is set but FooPort is 0.
*
* If CL_PORT_SERVER_OPTIONS is set in <b>flags</b>, do not allow stream
* isolation options in the FooPort entries; instead allow the
* server-port option set.
*
* On success, if <b>out</b> is given, add a new port_cfg_t entry to
* <b>out</b> for every port that the client should listen on. Return 0
* on success, -1 on failure.
*/
static int
parse_client_port_config(smartlist_t *out,
parse_port_config(smartlist_t *out,
const config_line_t *ports,
const config_line_t *listenaddrs,
const char *portname,
@ -5426,8 +5393,11 @@ parse_client_port_config(smartlist_t *out,
{
smartlist_t *elts;
int retval = -1;
const unsigned allow_client_options = !(flags & CL_PORT_NO_OPTIONS);
const unsigned is_control = (listener_type == CONN_TYPE_CONTROL_LISTENER);
const unsigned allow_no_options = flags & CL_PORT_NO_OPTIONS;
const unsigned use_server_options = flags & CL_PORT_SERVER_OPTIONS;
const unsigned warn_nonlocal = flags & CL_PORT_WARN_NONLOCAL;
const unsigned forbid_nonlocal = flags & CL_PORT_FORBID_NONLOCAL;
const unsigned allow_spurious_listenaddr =
flags & CL_PORT_ALLOW_EXTRA_LISTENADDR;
@ -5463,6 +5433,17 @@ parse_client_port_config(smartlist_t *out,
return -1;
}
if (use_server_options && out) {
/* Add a no_listen port. */
port_cfg_t *cfg = tor_malloc_zero(sizeof(port_cfg_t));
cfg->type = listener_type;
cfg->port = mainport;
tor_addr_make_unspec(&cfg->addr); /* Server ports default to 0.0.0.0 */
cfg->no_listen = 1;
cfg->ipv4_only = 1;
smartlist_add(out, cfg);
}
for (; listenaddrs; listenaddrs = listenaddrs->next) {
tor_addr_t addr;
uint16_t port = 0;
@ -5478,12 +5459,17 @@ parse_client_port_config(smartlist_t *out,
tor_addr_copy(&cfg->addr, &addr);
cfg->session_group = SESSION_GROUP_UNSET;
cfg->isolation_flags = ISO_DEFAULT;
cfg->no_advertise = 1;
smartlist_add(out, cfg);
}
}
if (warn_nonlocal && out)
warn_nonlocal_client_ports(out, portname);
if (warn_nonlocal && out) {
if (is_control)
warn_nonlocal_controller_ports(out, forbid_nonlocal);
else
warn_nonlocal_client_ports(out, portname);
}
return 0;
} /* end if (listenaddrs) */
@ -5515,6 +5501,8 @@ parse_client_port_config(smartlist_t *out,
char *addrport;
uint16_t ptmp=0;
int ok;
int no_listen = 0, no_advertise = 0, all_addrs = 0,
ipv4_only = 0, ipv6_only = 0;
smartlist_split_string(elts, ports->value, NULL,
SPLIT_SKIP_SPACE|SPLIT_IGNORE_BLANK, 0);
@ -5523,7 +5511,7 @@ parse_client_port_config(smartlist_t *out,
goto err;
}
if (!allow_client_options && smartlist_len(elts) > 1) {
if (allow_no_options && smartlist_len(elts) > 1) {
log_warn(LD_CONFIG, "Too many options on %sPort line", portname);
goto err;
}
@ -5562,56 +5550,107 @@ parse_client_port_config(smartlist_t *out,
}
/* Now parse the rest of the options, if any. */
SMARTLIST_FOREACH_BEGIN(elts, char *, elt) {
int no = 0, isoflag = 0;
const char *elt_orig = elt;
if (elt_sl_idx == 0)
continue; /* Skip addr:port */
if (!strcasecmpstart(elt, "SessionGroup=")) {
int group = (int)tor_parse_long(elt+strlen("SessionGroup="),
10, 0, INT_MAX, &ok, NULL);
if (!ok) {
log_warn(LD_CONFIG, "Invalid %sPort option '%s'",
if (use_server_options) {
/* This is a server port; parse advertising options */
SMARTLIST_FOREACH_BEGIN(elts, char *, elt) {
if (elt_sl_idx == 0)
continue; /* Skip addr:port */
if (!strcasecmp(elt, "NoAdvertise")) {
no_advertise = 1;
} else if (!strcasecmp(elt, "NoListen")) {
no_listen = 1;
#if 0
/* not implemented yet. */
} else if (!strcasecmp(elt, "AllAddrs")) {
all_addrs = 1;
#endif
} else if (!strcasecmp(elt, "IPv4Only")) {
ipv4_only = 1;
} else if (!strcasecmp(elt, "IPv6Only")) {
ipv6_only = 1;
} else {
log_warn(LD_CONFIG, "Unrecognized %sPort option '%s'",
portname, escaped(elt));
goto err;
}
if (sessiongroup >= 0) {
log_warn(LD_CONFIG, "Multiple SessionGroup options on %sPort",
portname);
goto err;
} SMARTLIST_FOREACH_END(elt);
if (no_advertise && no_listen) {
log_warn(LD_CONFIG, "Tried to set both NoListen and NoAdvertise "
"on %sPort line '%s'",
portname, escaped(ports->value));
goto err;
}
if (ipv4_only && ipv6_only) {
log_warn(LD_CONFIG, "Tried to set both IPv4Only and IPv6Only "
"on %sPort line '%s'",
portname, escaped(ports->value));
goto err;
}
if (ipv4_only && tor_addr_family(&addr) == AF_INET6) {
log_warn(LD_CONFIG, "Could not interpret %sPort address as IPv6",
portname);
goto err;
}
if (ipv6_only && tor_addr_family(&addr) == AF_INET) {
log_warn(LD_CONFIG, "Could not interpret %sPort address as IPv4",
portname);
goto err;
}
} else {
/* This is a client port; parse isolation options */
SMARTLIST_FOREACH_BEGIN(elts, char *, elt) {
int no = 0, isoflag = 0;
const char *elt_orig = elt;
if (elt_sl_idx == 0)
continue; /* Skip addr:port */
if (!strcasecmpstart(elt, "SessionGroup=")) {
int group = (int)tor_parse_long(elt+strlen("SessionGroup="),
10, 0, INT_MAX, &ok, NULL);
if (!ok) {
log_warn(LD_CONFIG, "Invalid %sPort option '%s'",
portname, escaped(elt));
goto err;
}
if (sessiongroup >= 0) {
log_warn(LD_CONFIG, "Multiple SessionGroup options on %sPort",
portname);
goto err;
}
sessiongroup = group;
continue;
}
sessiongroup = group;
continue;
}
if (!strcasecmpstart(elt, "No")) {
no = 1;
elt += 2;
}
if (!strcasecmpend(elt, "s"))
elt[strlen(elt)-1] = '\0'; /* kill plurals. */
if (!strcasecmpstart(elt, "No")) {
no = 1;
elt += 2;
}
if (!strcasecmpend(elt, "s"))
elt[strlen(elt)-1] = '\0'; /* kill plurals. */
if (!strcasecmp(elt, "IsolateDestPort")) {
isoflag = ISO_DESTPORT;
} else if (!strcasecmp(elt, "IsolateDestAddr")) {
isoflag = ISO_DESTADDR;
} else if (!strcasecmp(elt, "IsolateSOCKSAuth")) {
isoflag = ISO_SOCKSAUTH;
} else if (!strcasecmp(elt, "IsolateClientProtocol")) {
isoflag = ISO_CLIENTPROTO;
} else if (!strcasecmp(elt, "IsolateClientAddr")) {
isoflag = ISO_CLIENTADDR;
} else {
log_warn(LD_CONFIG, "Unrecognized %sPort option '%s'",
portname, escaped(elt_orig));
}
if (!strcasecmp(elt, "IsolateDestPort")) {
isoflag = ISO_DESTPORT;
} else if (!strcasecmp(elt, "IsolateDestAddr")) {
isoflag = ISO_DESTADDR;
} else if (!strcasecmp(elt, "IsolateSOCKSAuth")) {
isoflag = ISO_SOCKSAUTH;
} else if (!strcasecmp(elt, "IsolateClientProtocol")) {
isoflag = ISO_CLIENTPROTO;
} else if (!strcasecmp(elt, "IsolateClientAddr")) {
isoflag = ISO_CLIENTADDR;
} else {
log_warn(LD_CONFIG, "Unrecognized %sPort option '%s'",
portname, escaped(elt_orig));
}
if (no) {
isolation &= ~isoflag;
} else {
isolation |= isoflag;
}
} SMARTLIST_FOREACH_END(elt);
if (no) {
isolation &= ~isoflag;
} else {
isolation |= isoflag;
}
} SMARTLIST_FOREACH_END(elt);
}
if (out && port) {
port_cfg_t *cfg = tor_malloc_zero(sizeof(port_cfg_t));
@ -5620,14 +5659,24 @@ parse_client_port_config(smartlist_t *out,
tor_addr_copy(&cfg->addr, &addr);
cfg->session_group = sessiongroup;
cfg->isolation_flags = isolation;
cfg->no_listen = no_listen;
cfg->no_listen = no_advertise;
cfg->all_addrs = all_addrs;
cfg->ipv4_only = ipv4_only;
cfg->ipv6_only = ipv6_only;
smartlist_add(out, cfg);
}
SMARTLIST_FOREACH(elts, char *, cp, tor_free(cp));
smartlist_clear(elts);
}
if (warn_nonlocal && out)
warn_nonlocal_client_ports(out, portname);
if (warn_nonlocal && out) {
if (is_control)
warn_nonlocal_controller_ports(out, forbid_nonlocal);
else
warn_nonlocal_client_ports(out, portname);
}
retval = 0;
err:
@ -5636,6 +5685,27 @@ parse_client_port_config(smartlist_t *out,
return retval;
}
/** DOCDOC */
static int
parse_socket_config(smartlist_t *out, const config_line_t *cfg,
int listener_type)
{
if (!out)
return 0;
for ( ; cfg; cfg = cfg->next) {
size_t len = strlen(cfg->value);
port_cfg_t *port = tor_malloc_zero(sizeof(port_cfg_t) + len + 1);
port->is_unix_addr = 1;
memcpy(port->unix_addr, cfg->value, len+1);
port->type = listener_type;
smartlist_add(out, port);
}
return 0;
}
/** Parse all client port types (Socks, DNS, Trans, NATD) from
* <b>options</b>. On success, set *<b>n_ports_out</b> to the number of
* ports that are listed and return 0. On failure, set *<b>msg</b> to a
@ -5645,8 +5715,8 @@ parse_client_port_config(smartlist_t *out,
* new list of ports parsed from <b>options</b>.
**/
static int
parse_client_ports(const or_options_t *options, int validate_only,
char **msg, int *n_ports_out)
parse_ports(const or_options_t *options, int validate_only,
char **msg, int *n_ports_out)
{
smartlist_t *ports;
int retval = -1;
@ -5655,7 +5725,7 @@ parse_client_ports(const or_options_t *options, int validate_only,
*n_ports_out = 0;
if (parse_client_port_config(ports,
if (parse_port_config(ports,
options->SocksPort, options->SocksListenAddress,
"Socks", CONN_TYPE_AP_LISTENER,
"127.0.0.1", 9050,
@ -5663,7 +5733,7 @@ parse_client_ports(const or_options_t *options, int validate_only,
*msg = tor_strdup("Invalid SocksPort/SocksListenAddress configuration");
goto err;
}
if (parse_client_port_config(ports,
if (parse_port_config(ports,
options->DNSPort, options->DNSListenAddress,
"DNS", CONN_TYPE_AP_DNS_LISTENER,
"127.0.0.1", 0,
@ -5671,7 +5741,7 @@ parse_client_ports(const or_options_t *options, int validate_only,
*msg = tor_strdup("Invalid DNSPort/DNSListenAddress configuration");
goto err;
}
if (parse_client_port_config(ports,
if (parse_port_config(ports,
options->TransPort, options->TransListenAddress,
"Trans", CONN_TYPE_AP_TRANS_LISTENER,
"127.0.0.1", 0,
@ -5679,7 +5749,7 @@ parse_client_ports(const or_options_t *options, int validate_only,
*msg = tor_strdup("Invalid TransPort/TransListenAddress configuration");
goto err;
}
if (parse_client_port_config(ports,
if (parse_port_config(ports,
options->NATDPort, options->NATDListenAddress,
"NATD", CONN_TYPE_AP_NATD_LISTENER,
"127.0.0.1", 0,
@ -5687,16 +5757,63 @@ parse_client_ports(const or_options_t *options, int validate_only,
*msg = tor_strdup("Invalid NatdPort/NatdListenAddress configuration");
goto err;
}
{
unsigned control_port_flags = CL_PORT_NO_OPTIONS | CL_PORT_WARN_NONLOCAL;
const int any_passwords = (options->HashedControlPassword ||
options->HashedControlSessionPassword ||
options->CookieAuthentication);
if (! any_passwords)
control_port_flags |= CL_PORT_FORBID_NONLOCAL;
if (parse_port_config(ports,
options->ControlPort, options->ControlListenAddress,
"Control", CONN_TYPE_CONTROL_LISTENER,
"127.0.0.1", 0,
control_port_flags) < 0) {
*msg = tor_strdup("Invalid ControlPort/ControlListenAddress "
"configuration");
goto err;
}
if (parse_socket_config(ports,
options->ControlSocket,
CONN_TYPE_CONTROL_LISTENER) < 0) {
*msg = tor_strdup("Invalid ControlSocket configuration");
goto err;
}
}
if (! options->ClientOnly) {
if (parse_port_config(ports,
options->ORPort, options->ORListenAddress,
"OR", CONN_TYPE_OR_LISTENER,
"0.0.0.0", 0,
CL_PORT_SERVER_OPTIONS) < 0) {
*msg = tor_strdup("Invalid ORPort/ORListenAddress configuration");
goto err;
}
if (parse_port_config(ports,
options->DirPort, options->DirListenAddress,
"Dir", CONN_TYPE_DIR_LISTENER,
"0.0.0.0", 0,
CL_PORT_SERVER_OPTIONS) < 0) {
*msg = tor_strdup("Invalid DirPort/DirListenAddress configuration");
goto err;
}
}
if (check_server_ports(ports, options) < 0) {
*msg = tor_strdup("Misconfigured server ports");
goto err;
}
*n_ports_out = smartlist_len(ports);
if (!validate_only) {
if (configured_client_ports) {
SMARTLIST_FOREACH(configured_client_ports,
if (configured_ports) {
SMARTLIST_FOREACH(configured_ports,
port_cfg_t *, p, port_cfg_free(p));
smartlist_free(configured_client_ports);
smartlist_free(configured_ports);
}
configured_client_ports = ports;
configured_ports = ports;
ports = NULL; /* prevent free below. */
}
@ -5709,14 +5826,107 @@ parse_client_ports(const or_options_t *options, int validate_only,
return retval;
}
/** DOCDOC */
static int
check_server_ports(const smartlist_t *ports,
const or_options_t *options)
{
int n_orport_advertised = 0;
int n_orport_advertised_ipv4 = 0;
int n_orport_listeners = 0;
int n_dirport_advertised = 0;
int n_dirport_listeners = 0;
int n_low_port = 0;
int r = 0;
SMARTLIST_FOREACH_BEGIN(ports, const port_cfg_t *, port) {
if (port->type == CONN_TYPE_DIR_LISTENER) {
if (! port->no_advertise)
++n_dirport_advertised;
if (! port->no_listen)
++n_dirport_listeners;
} else if (port->type == CONN_TYPE_OR_LISTENER) {
if (! port->no_advertise) {
++n_orport_advertised;
if (tor_addr_family(&port->addr) == AF_INET ||
(tor_addr_family(&port->addr) == AF_UNSPEC && !port->ipv6_only))
++n_orport_advertised_ipv4;
}
if (! port->no_listen)
++n_orport_listeners;
} else {
continue;
}
#ifndef MS_WINDOWS
if (!port->no_advertise && port->port < 1024)
++n_low_port;
#endif
} SMARTLIST_FOREACH_END(port);
if (n_orport_advertised && !n_orport_listeners) {
log_warn(LD_CONFIG, "We are advertising an ORPort, but not actually "
"listening on one.");
r = -1;
}
if (n_dirport_advertised && !n_dirport_listeners) {
log_warn(LD_CONFIG, "We are advertising a DirPort, but not actually "
"listening on one.");
r = -1;
}
if (n_dirport_advertised > 1) {
log_warn(LD_CONFIG, "Can't advertise more than one DirPort.");
r = -1;
}
if (n_orport_advertised && !n_orport_advertised_ipv4 &&
!options->BridgeRelay) {
log_warn(LD_CONFIG, "Configured non-bridge only to listen on an IPv6 "
"address.");
r = -1;
}
if (n_low_port && options->AccountingMax) {
log(LOG_WARN, LD_CONFIG,
"You have set AccountingMax to use hibernation. You have also "
"chosen a low DirPort or OrPort. This combination can make Tor stop "
"working when it tries to re-attach the port after a period of "
"hibernation. Please choose a different port or turn off "
"hibernation unless you know this combination will work on your "
"platform.");
}
return r;
}
/** Return a list of port_cfg_t for client ports parsed from the
* options. */
const smartlist_t *
get_configured_client_ports(void)
get_configured_ports(void)
{
if (!configured_client_ports)
configured_client_ports = smartlist_create();
return configured_client_ports;
if (!configured_ports)
configured_ports = smartlist_create();
return configured_ports;
}
/** Return the first advertised port of type <b>listener_type</b> in
<b>address_family</b>. */
int
get_first_advertised_port_by_type_af(int listener_type, int address_family)
{
if (!configured_ports)
return 0;
SMARTLIST_FOREACH_BEGIN(configured_ports, const port_cfg_t *, cfg) {
if (cfg->type == listener_type &&
!cfg->no_advertise &&
(tor_addr_family(&cfg->addr) == address_family ||
tor_addr_family(&cfg->addr) == AF_UNSPEC)) {
if (tor_addr_family(&cfg->addr) != AF_UNSPEC ||
(address_family == AF_INET && !cfg->ipv6_only) ||
(address_family == AF_INET6 && !cfg->ipv4_only)) {
return cfg->port;
}
}
} SMARTLIST_FOREACH_END(cfg);
return 0;
}
/** Adjust the value of options->DataDirectory, or fill it in if it's
@ -6094,7 +6304,7 @@ init_libevent(const or_options_t *options)
suppress_libevent_log_msg(NULL);
tor_check_libevent_version(tor_libevent_get_method(),
get_options()->ORPort != 0,
get_options()->ORPort != NULL,
&badness);
if (badness) {
const char *v = tor_libevent_get_version_str();

8
src/or/config.h
View File

@ -64,7 +64,13 @@ or_state_t *get_or_state(void);
int did_last_state_file_write_fail(void);
int or_state_save(time_t now);
const smartlist_t *get_configured_client_ports(void);
const smartlist_t *get_configured_ports(void);
int get_first_advertised_port_by_type_af(int listener_type,
int address_family);
#define get_primary_or_port() \
(get_first_advertised_port_by_type_af(CONN_TYPE_OR_LISTENER, AF_INET))
#define get_primary_dir_port() \
(get_first_advertised_port_by_type_af(CONN_TYPE_DIR_LISTENER, AF_INET))
int options_need_geoip_info(const or_options_t *options,
const char **reason_out);

121
src/or/connection.c
View File

@ -880,7 +880,8 @@ connection_create_listener(const struct sockaddr *listensockaddr,
return NULL;
}
if (listensockaddr->sa_family == AF_INET) {
if (listensockaddr->sa_family == AF_INET ||
listensockaddr->sa_family == AF_INET6) {
int is_tcp = (type != CONN_TYPE_AP_DNS_LISTENER);
if (is_tcp)
start_reading = 1;
@ -890,7 +891,7 @@ connection_create_listener(const struct sockaddr *listensockaddr,
log_notice(LD_NET, "Opening %s on %s:%d",
conn_type_to_string(type), fmt_addr(&addr), usePort);
s = tor_open_socket(PF_INET,
s = tor_open_socket(tor_addr_family(&addr),
is_tcp ? SOCK_STREAM : SOCK_DGRAM,
is_tcp ? IPPROTO_TCP: IPPROTO_UDP);
if (!SOCKET_OK(s)) {
@ -1814,6 +1815,9 @@ retry_listener_ports(smartlist_t *old_conns,
(conn->socket_family == AF_UNIX && ! wanted->is_unix_addr))
continue;
if (wanted->no_listen)
continue; /* We don't want to open a listener for this one */
if (wanted->is_unix_addr) {
if (conn->socket_family == AF_UNIX &&
!strcmp(wanted->unix_addr, conn->address)) {
@ -1852,6 +1856,8 @@ retry_listener_ports(smartlist_t *old_conns,
connection_t *conn;
int real_port = port->port == CFG_AUTO_PORT ? 0 : port->port;
tor_assert(real_port <= UINT16_MAX);
if (port->no_listen)
continue;
if (port->is_unix_addr) {
listensockaddr = (struct sockaddr *)
@ -1888,82 +1894,6 @@ retry_listener_ports(smartlist_t *old_conns,
return r;
}
/**
* Launch any configured listener connections of type <b>type</b>. (A
* listener is configured if <b>port_option</b> is non-zero. If any
* ListenAddress configuration options are given in <b>cfg</b>, create a
* connection binding to each one. Otherwise, create a single
* connection binding to the address <b>default_addr</b>.)
*
* We assume that we're starting with a list of existing listener connection_t
* pointers in <b>old_conns</b>: we do not launch listeners that are already
* in that list. Instead, we just remove them from the list.
*
* All new connections we launch are added to <b>new_conns</b>.
*/
static int
retry_listeners(smartlist_t *old_conns,
int type, const config_line_t *cfg,
int port_option, const char *default_addr,
smartlist_t *new_conns,
int is_sockaddr_un)
{
smartlist_t *ports = smartlist_create();
tor_addr_t dflt_addr;
int retval = 0;
if (default_addr) {
tor_addr_parse(&dflt_addr, default_addr);
} else {
tor_addr_make_unspec(&dflt_addr);
}
if (port_option) {
if (!cfg) {
port_cfg_t *port = tor_malloc_zero(sizeof(port_cfg_t));
tor_addr_copy(&port->addr, &dflt_addr);
port->port = port_option;
port->type = type;
smartlist_add(ports, port);
} else {
const config_line_t *c;
for (c = cfg; c; c = c->next) {
port_cfg_t *port;
tor_addr_t addr;
uint16_t portval = 0;
if (is_sockaddr_un) {
size_t len = strlen(c->value);
port = tor_malloc_zero(sizeof(port_cfg_t) + len + 1);
port->is_unix_addr = 1;
memcpy(port->unix_addr, c->value, len+1);
} else {
if (tor_addr_port_lookup(c->value, &addr, &portval) < 0) {
log_warn(LD_CONFIG, "Can't parse/resolve %s %s",
c->key, c->value);
retval = -1;
continue;
}
port = tor_malloc_zero(sizeof(port_cfg_t));
tor_addr_copy(&port->addr, &addr);
}
port->type = type;
port->port = portval ? portval : port_option;
smartlist_add(ports, port);
}
}
}
if (retval == -1)
goto cleanup;
retval = retry_listener_ports(old_conns, ports, new_conns);
cleanup:
SMARTLIST_FOREACH(ports, port_cfg_t *, p, tor_free(p));
smartlist_free(ports);
return retval;
}
/** Launch listeners for each port you should have open. Only launch
* listeners who are not already open, and only close listeners we no longer
* want.
@ -1986,37 +1916,9 @@ retry_all_listeners(smartlist_t *replaced_conns,
smartlist_add(listeners, conn);
} SMARTLIST_FOREACH_END(conn);
if (! options->ClientOnly && ! options->DisableNetwork) {
if (retry_listeners(listeners,
CONN_TYPE_OR_LISTENER, options->ORListenAddress,
options->ORPort, "0.0.0.0",
new_conns, 0) < 0)
retval = -1;
if (retry_listeners(listeners,
CONN_TYPE_DIR_LISTENER, options->DirListenAddress,
options->DirPort, "0.0.0.0",
new_conns, 0) < 0)
retval = -1;
}
if (!options->DisableNetwork) {
if (retry_listener_ports(listeners,
get_configured_client_ports(),
new_conns) < 0)
retval = -1;
}
if (retry_listeners(listeners,
CONN_TYPE_CONTROL_LISTENER,
options->ControlListenAddress,
options->ControlPort, "127.0.0.1",
new_conns, 0) < 0)
retval = -1;
if (retry_listeners(listeners,
CONN_TYPE_CONTROL_LISTENER,
options->ControlSocket,
options->ControlSocket ? 1 : 0, NULL,
new_conns, 1) < 0)
if (retry_listener_ports(listeners,
get_configured_ports(),
new_conns) < 0)
retval = -1;
/* Any members that were still in 'listeners' don't correspond to
@ -2034,6 +1936,7 @@ retry_all_listeners(smartlist_t *replaced_conns,
smartlist_free(listeners);
/* XXXprop186 should take all advertised ports into account */
if (old_or_port != router_get_advertised_or_port(options) ||
old_dir_port != router_get_advertised_dir_port(options, 0)) {
/* Our chosen ORPort or DirPort is not what it used to be: the

4
src/or/connection_edge.c
View File

@ -2593,7 +2593,7 @@ connection_ap_make_link(connection_t *partner,
want_onehop ? "direct" : "anonymized",
safe_str_client(address), port);
conn = entry_connection_new(CONN_TYPE_AP, AF_INET);
conn = entry_connection_new(CONN_TYPE_AP, tor_addr_family(&partner->addr));
base_conn = ENTRY_TO_CONN(conn);
base_conn->linked = 1; /* so that we can add it safely below. */
@ -3199,7 +3199,7 @@ connection_exit_connect_dir(edge_connection_t *exitconn)
exitconn->_base.state = EXIT_CONN_STATE_OPEN;
dirconn = dir_connection_new(AF_INET);
dirconn = dir_connection_new(tor_addr_family(&exitconn->_base.addr));
tor_addr_copy(&dirconn->_base.addr, &exitconn->_base.addr);
dirconn->_base.port = 0;

21
src/or/connection_or.c
View File

@ -630,7 +630,9 @@ connection_or_update_token_buckets(smartlist_t *conns,
/** If we don't necessarily know the router we're connecting to, but we
* have an addr/port/id_digest, then fill in as much as we can. Start
* by checking to see if this describes a router we know. */
* by checking to see if this describes a router we know.
* <b>started_here</b> is 1 if we are the initiator of <b>conn</b> and
* 0 if it's an incoming connection. */
void
connection_or_init_conn_from_address(or_connection_t *conn,
const tor_addr_t *addr, uint16_t port,
@ -645,10 +647,11 @@ connection_or_init_conn_from_address(or_connection_t *conn,
tor_addr_copy(&conn->_base.addr, addr);
tor_addr_copy(&conn->real_addr, addr);
if (r) {
tor_addr_t node_addr;
node_get_addr(r, &node_addr);
/* XXXX proposal 118 will make this more complex. */
if (tor_addr_eq(&conn->_base.addr, &node_addr))
tor_addr_port_t node_ap;
node_get_pref_orport(r, &node_ap);
/* XXXX proposal 186 is making this more complex. For now, a conn
is canonical when it uses the _preferred_ address. */
if (tor_addr_eq(&conn->_base.addr, &node_ap.addr))
conn->is_canonical = 1;
if (!started_here) {
/* Override the addr/port, so our log messages will make sense.
@ -661,12 +664,12 @@ connection_or_init_conn_from_address(or_connection_t *conn,
* right IP address and port 56244, that wouldn't be as helpful. now we
* log the "right" port too, so we know if it's moria1 or moria2.
*/
tor_addr_copy(&conn->_base.addr, &node_addr);
conn->_base.port = node_get_orport(r);
tor_addr_copy(&conn->_base.addr, &node_ap.addr);
conn->_base.port = node_ap.port;
}
conn->nickname = tor_strdup(node_get_nickname(r));
tor_free(conn->_base.address);
conn->_base.address = tor_dup_addr(&node_addr);
conn->_base.address = tor_dup_addr(&node_ap.addr);
} else {
const char *n;
/* If we're an authoritative directory server, we may know a
@ -1033,7 +1036,7 @@ connection_or_connect(const tor_addr_t *_addr, uint16_t port,
return NULL;
}
conn = or_connection_new(AF_INET);
conn = or_connection_new(tor_addr_family(&addr));
/* set up conn so it's got all the data we need to remember */
connection_or_init_conn_from_address(conn, &addr, port, id_digest, 1);

2
src/or/control.c
View File

@ -2402,7 +2402,7 @@ handle_control_extendcircuit(control_connection_t *conn, uint32_t len,
/* now circ refers to something that is ready to be extended */
SMARTLIST_FOREACH(nodes, const node_t *, node,
{
extend_info_t *info = extend_info_from_node(node);
extend_info_t *info = extend_info_from_node(node, 0);
tor_assert(info); /* True, since node_has_descriptor(node) == true */
circuit_append_new_exit(circ, info);
extend_info_free(info);

10
src/or/directory.c
View File

@ -919,7 +919,7 @@ directory_initiate_command_rend(const char *address, const tor_addr_t *_addr,
return;
}
conn = dir_connection_new(AF_INET);
conn = dir_connection_new(tor_addr_family(&addr));
/* set up conn so it's got all the data we need to remember */
tor_addr_copy(&conn->_base.addr, &addr);
@ -1619,9 +1619,11 @@ connection_dir_client_reached_eof(dir_connection_t *conn)
if (!reason) reason = tor_strdup("[no reason given]");
log_debug(LD_DIR,
"Received response from directory server '%s:%d': %d %s",
"Received response from directory server '%s:%d': %d %s "
"(purpose: %d)",
conn->_base.address, conn->_base.port, status_code,
escaped(reason));
escaped(reason),
conn->_base.purpose);
/* now check if it's got any hints for us about our IP address. */
if (conn->dirconn_direct) {
@ -3729,7 +3731,7 @@ download_status_reset(download_status_t *dls)
const int *schedule;
size_t schedule_len;
find_dl_schedule_and_len(dls, get_options()->DirPort,
find_dl_schedule_and_len(dls, get_options()->DirPort != NULL,
&schedule, &schedule_len);
dls->n_download_failures = 0;

2
src/or/directory.h
View File

@ -80,7 +80,7 @@ time_t download_status_increment_failure(download_status_t *dls,
* the optional status code <b>sc</b>. */
#define download_status_failed(dls, sc) \
download_status_increment_failure((dls), (sc), NULL, \
get_options()->DirPort, time(NULL))
get_options()->DirPort!=NULL, time(NULL))
void download_status_reset(download_status_t *dls);
static int download_status_is_ready(download_status_t *dls, time_t now,

8
src/or/dirserv.c
View File

@ -1212,7 +1212,7 @@ directory_fetches_from_authorities(const or_options_t *options)
return 1; /* we don't know our IP address; ask an authority. */
refuseunknown = ! router_my_exit_policy_is_reject_star() &&
should_refuse_unknown_exits(options);
if (options->DirPort == 0 && !refuseunknown)
if (options->DirPort == NULL && !refuseunknown)
return 0;
if (!server_mode(options) || !advertised_server_mode())
return 0;
@ -1248,7 +1248,7 @@ directory_fetches_dir_info_later(const or_options_t *options)
int
directory_caches_v2_dir_info(const or_options_t *options)
{
return options->DirPort != 0;
return options->DirPort != NULL;
}
/** Return 1 if we want to keep descriptors, networkstatuses, etc around
@ -1273,7 +1273,7 @@ directory_caches_dir_info(const or_options_t *options)
int
directory_permits_begindir_requests(const or_options_t *options)
{
return options->BridgeRelay != 0 || options->DirPort != 0;
return options->BridgeRelay != 0 || options->DirPort != NULL;
}
/** Return 1 if we want to allow controllers to ask us directory
@ -1282,7 +1282,7 @@ directory_permits_begindir_requests(const or_options_t *options)
int
directory_permits_controller_requests(const or_options_t *options)
{
return options->DirPort != 0;
return options->DirPort != NULL;
}
/** Return 1 if we have no need to fetch new descriptors. This generally

5
src/or/main.c
View File

@ -1511,9 +1511,10 @@ run_scheduled_events(time_t now)
options->PortForwarding &&
is_server) {
#define PORT_FORWARDING_CHECK_INTERVAL 5
/* XXXXX this should take a list of ports, not just two! */
tor_check_port_forwarding(options->PortForwardingHelper,
options->DirPort,
options->ORPort,
get_primary_dir_port(),
get_primary_or_port(),
now);
time_to_check_port_forwarding = now+PORT_FORWARDING_CHECK_INTERVAL;
}

113
src/or/nodelist.c
View File

@ -646,24 +646,70 @@ node_exit_policy_rejects_all(const node_t *node)
return 1;
}
/** Copy the address for <b>node</b> into *<b>addr_out</b>. */
int
node_get_addr(const node_t *node, tor_addr_t *addr_out)
/** Return list of tor_addr_port_t with all OR ports (in the sense IP
* addr + TCP port) for <b>node</b>. Caller must free all elements
* using tor_free() and free the list using smartlist_free().
*
* XXX this is potentially a memory fragmentation hog -- if on
* critical path consider the option of having the caller allocate the
* memory
*/
smartlist_t *
node_get_all_orports(const node_t *node)
{
smartlist_t *sl = smartlist_create();
if (node->ri != NULL) {
if (node->ri->addr != 0) {
tor_addr_port_t *ap = tor_malloc(sizeof(tor_addr_port_t));
tor_addr_from_ipv4h(&ap->addr, node->ri->addr);
ap->port = node->ri->or_port;
smartlist_add(sl, ap);
}
if (!tor_addr_is_null(&node->ri->ipv6_addr)) {
tor_addr_port_t *ap = tor_malloc(sizeof(tor_addr_port_t));
tor_addr_copy(&ap->addr, &node->ri->ipv6_addr);
ap->port = node->ri->or_port;
smartlist_add(sl, ap);
}
} else if (node->rs != NULL) {
tor_addr_port_t *ap = tor_malloc(sizeof(tor_addr_port_t));
tor_addr_from_ipv4h(&ap->addr, node->rs->addr);
ap->port = node->rs->or_port;
smartlist_add(sl, ap);
}
return sl;
}
/** Copy the primary (IPv4) OR port (IP address and TCP port) for
* <b>node</b> into *<b>ap_out</b>. */
void
node_get_prim_orport(const node_t *node, tor_addr_port_t *ap_out)
{
if (node->ri) {
tor_addr_from_ipv4h(addr_out, node->ri->addr);
return 0;
} else if (node->rs) {
tor_addr_from_ipv4h(addr_out, node->rs->addr);
return 0;
router_get_prim_orport(node->ri, ap_out);
}
return -1;
else if (node->rs) {
tor_addr_from_ipv4h(&ap_out->addr, node->rs->addr);
ap_out->port = node->rs->or_port;
}
}
/** Wrapper around node_get_prim_orport for backward
compatibility. */
void
node_get_addr(const node_t *node, tor_addr_t *addr_out)
{
tor_addr_port_t ap;
node_get_prim_orport(node, &ap);
tor_addr_copy(addr_out, &ap.addr);
}
/** Return the host-order IPv4 address for <b>node</b>, or 0 if it doesn't
* seem to have one. */
uint32_t
node_get_addr_ipv4h(const node_t *node)
node_get_prim_addr_ipv4h(const node_t *node)
{
if (node->ri) {
return node->ri->addr;
@ -673,9 +719,38 @@ node_get_addr_ipv4h(const node_t *node)
return 0;
}
/** Copy a string representation of the IP address for <b>node</b> into the
* <b>len</b>-byte buffer at <b>buf</b>.
*/
/** Copy the preferred OR port (IP address and TCP port) for
* <b>node</b> into <b>ap_out</b>. */
void
node_get_pref_orport(const node_t *node, tor_addr_port_t *ap_out)
{
if (node->ri) {
router_get_pref_orport(node->ri, ap_out);
} else if (node->rs) {
/* No IPv6 in routerstatus_t yet. XXXprop186 ok for private
bridges but needs fixing */
tor_addr_from_ipv4h(&ap_out->addr, node->rs->addr);
ap_out->port = node->rs->or_port;
}
}
/** Copy the preferred IPv6 OR port (address and TCP port) for
* <b>node</b> into *<b>ap_out</b>. */
void
node_get_pref_ipv6_orport(const node_t *node, tor_addr_port_t *ap_out)
{
if (node->ri) {
router_get_pref_ipv6_orport(node->ri, ap_out);
} else if (node->rs) {
/* No IPv6 in routerstatus_t yet. XXXprop186 ok for private
bridges but needs fixing */
tor_addr_make_unspec(&ap_out->addr);
ap_out->port = 0;
}
}
/** Copy a string representation of an IP address for <b>node</b> into
* the <b>len</b>-byte buffer at <b>buf</b>. */
void
node_get_address_string(const node_t *node, char *buf, size_t len)
{
@ -701,18 +776,6 @@ node_get_declared_uptime(const node_t *node)
return -1;
}
/** Return <b>node</b>'s declared or_port */
uint16_t
node_get_orport(const node_t *node)
{
if (node->ri)
return node->ri->or_port;
else if (node->rs)
return node->rs->or_port;
else
return 0;
}
/** Return <b>node</b>'s platform string, or NULL if we don't know it. */
const char *
node_get_platform(const node_t *node)

13
src/or/nodelist.h
View File

@ -37,10 +37,13 @@ int node_get_purpose(const node_t *node);
(node_get_purpose((node)) == ROUTER_PURPOSE_BRIDGE)
int node_is_me(const node_t *node);
int node_exit_policy_rejects_all(const node_t *node);
int node_get_addr(const node_t *node, tor_addr_t *addr_out);
uint32_t node_get_addr_ipv4h(const node_t *node);
smartlist_t *node_get_all_orports(const node_t *node);
void node_get_prim_orport(const node_t *node, tor_addr_port_t *addr_port_out);
void node_get_pref_orport(const node_t *node, tor_addr_port_t *addr_port_out);
void node_get_pref_ipv6_orport(const node_t *node,
tor_addr_port_t *addr_port_out);
uint32_t node_get_prim_addr_ipv4h(const node_t *node);
int node_allows_single_hop_exits(const node_t *node);
uint16_t node_get_orport(const node_t *node);
const char *node_get_nickname(const node_t *node);
const char *node_get_platform(const node_t *node);
void node_get_address_string(const node_t *node, char *cp, size_t len);
@ -50,6 +53,10 @@ const smartlist_t *node_get_declared_family(const node_t *node);
smartlist_t *nodelist_get_list(void);
/* Temporary during transition to multiple addresses. */
void node_get_addr(const node_t *node, tor_addr_t *addr_out);
#define node_get_addr_ipv4h(n) node_get_prim_addr_ipv4h((n))
/* XXXX These need to move out of routerlist.c */
void nodelist_refresh_countries(void);
void node_set_country(node_t *node);

22
src/or/or.h
View File

@ -1722,6 +1722,13 @@ typedef struct {
uint16_t or_port; /**< Port for TLS connections. */
uint16_t dir_port; /**< Port for HTTP directory connections. */
/* DOCDOC */
/* XXXXX187 Actually these should probably be part of a list of addresses,
* not just a special case. Use abstractions to access these; don't do it
* directly. */
tor_addr_t ipv6_addr;
uint16_t ipv6_orport;
crypto_pk_env_t *onion_pkey; /**< Public RSA key for onions. */
crypto_pk_env_t *identity_pkey; /**< Public RSA key for signing. */
@ -1753,6 +1760,8 @@ typedef struct {
/** True if, after we have added this router, we should re-launch
* tests for it. */
unsigned int needs_retest_if_added:1;
/** True if ipv6_addr:ipv6_orport is preferred. */
unsigned int ipv6_preferred:1;
/** Tor can use this router for general positions in circuits; we got it
* from a directory server as usual, or we're an authority and a server
@ -2833,6 +2842,13 @@ typedef struct port_cfg_t {
int session_group; /**< A session group, or -1 if this port is not in a
* session group. */
/* Server port types (or, dir) only: */
unsigned int no_advertise : 1;
unsigned int no_listen : 1;
unsigned int all_addrs : 1;
unsigned int ipv4_only : 1;
unsigned int ipv6_only : 1;
/* Unix sockets only: */
/** Path for an AF_UNIX address */
char unix_addr[FLEXIBLE_ARRAY_MEMBER];
@ -2948,17 +2964,17 @@ typedef struct {
int DirAllowPrivateAddresses;
char *User; /**< Name of user to run Tor as. */
char *Group; /**< Name of group to run Tor as. */
int ORPort; /**< Port to listen on for OR connections. */
config_line_t *ORPort; /**< Ports to listen on for OR connections. */
config_line_t *SocksPort; /**< Ports to listen on for SOCKS connections. */
/** Ports to listen on for transparent pf/netfilter connections. */
config_line_t *TransPort;
config_line_t *NATDPort; /**< Ports to listen on for transparent natd
* connections. */
int ControlPort; /**< Port to listen on for control connections. */
config_line_t *ControlPort; /**< Port to listen on for control connections. */
config_line_t *ControlSocket; /**< List of Unix Domain Sockets to listen on
* for control connections. */
int ControlSocketsGroupWritable; /**< Boolean: Are control sockets g+rw? */
int DirPort; /**< Port to listen on for directory connections. */
config_line_t *DirPort; /**< Port to listen on for directory connections. */
config_line_t *DNSPort; /**< Port to listen on for DNS requests. */
int AssumeReachable; /**< Whether to publish our descriptor regardless. */
int AuthoritativeDir; /**< Boolean: is this an authoritative directory? */

2
src/or/rendclient.c
View File

@ -1059,7 +1059,7 @@ rend_client_get_random_intro_impl(const rend_cache_entry_t *entry,
smartlist_del(usable_nodes, i);
goto again;
}
new_extend_info = extend_info_from_node(node);
new_extend_info = extend_info_from_node(node, 0);
if (!new_extend_info) {
log_info(LD_REND, "We don't have a descriptor for the intro-point relay "
"'%s'; trying another.",

4
src/or/rendservice.c
View File

@ -1142,7 +1142,7 @@ rend_service_introduce(origin_circuit_t *circuit, const uint8_t *request,
goto err;
}
extend_info = extend_info_from_node(node);
extend_info = extend_info_from_node(node, 0);
}
if (len != REND_COOKIE_LEN+DH_KEY_LEN) {
@ -2151,7 +2151,7 @@ rend_services_introduce(void)
intro_point_set_changed = 1;
smartlist_add(intro_nodes, (void*)node);
intro = tor_malloc_zero(sizeof(rend_intro_point_t));
intro->extend_info = extend_info_from_node(node);
intro->extend_info = extend_info_from_node(node, 0);
intro->intro_key = crypto_new_pk_env();
tor_assert(!crypto_pk_generate_key(intro->intro_key));
intro->time_published = -1;

113
src/or/router.c
View File

@ -893,7 +893,8 @@ consider_testing_reachability(int test_or, int test_dir)
log_info(LD_CIRC, "Testing %s of my ORPort: %s:%d.",
!orport_reachable ? "reachability" : "bandwidth",
me->address, me->or_port);
ei = extend_info_from_router(me);
/* XXX IPv6 self testing IPv6 orports will need pref_addr */
ei = extend_info_from_router(me, 0);
circuit_launch_by_extend_info(CIRCUIT_PURPOSE_TESTING, ei,
CIRCLAUNCH_NEED_CAPACITY|CIRCLAUNCH_IS_INTERNAL);
extend_info_free(ei);
@ -1083,7 +1084,7 @@ int
server_mode(const or_options_t *options)
{
if (options->ClientOnly) return 0;
return (options->ORPort != 0 || options->ORListenAddress);
return (options->ORPort || options->ORListenAddress);
}
/** Return true iff we are trying to be a non-bridge server.
@ -1134,7 +1135,14 @@ int
proxy_mode(const or_options_t *options)
{
(void)options;
return smartlist_len(get_configured_client_ports()) > 0;
SMARTLIST_FOREACH_BEGIN(get_configured_ports(), const port_cfg_t *, p) {
if (p->type == CONN_TYPE_AP_LISTENER ||
p->type == CONN_TYPE_AP_TRANS_LISTENER ||
p->type == CONN_TYPE_AP_DNS_LISTENER ||
p->type == CONN_TYPE_AP_NATD_LISTENER)
return 1;
} SMARTLIST_FOREACH_END(p);
return 0;
}
/** Decide if we're a publishable server. We are a publishable server if:
@ -1193,17 +1201,21 @@ consider_publishable_server(int force)
/** Return the port that we should advertise as our ORPort; this is either
* the one configured in the ORPort option, or the one we actually bound to
* if ORPort is "auto". */
* if ORPort is "auto".
*/
uint16_t
router_get_advertised_or_port(const or_options_t *options)
{
if (options->ORPort == CFG_AUTO_PORT) {
int port = get_primary_or_port();
(void)options;
if (port == CFG_AUTO_PORT) {
connection_t *c = connection_get_by_type(CONN_TYPE_OR_LISTENER);
if (c)
return c->port;
return 0;
}
return options->ORPort;
return port;
}
/** Return the port that we should advertise as our DirPort;
@ -1214,15 +1226,18 @@ router_get_advertised_or_port(const or_options_t *options)
uint16_t
router_get_advertised_dir_port(const or_options_t *options, uint16_t dirport)
{
if (!options->DirPort)
int dirport_configured = get_primary_dir_port();
(void)options;
if (!dirport_configured)
return dirport;
if (options->DirPort == CFG_AUTO_PORT) {
if (dirport_configured == CFG_AUTO_PORT) {
connection_t *c = connection_get_by_type(CONN_TYPE_DIR_LISTENER);
if (c)
return c->port;
return 0;
}
return options->DirPort;
return dirport_configured;
}
/*
@ -1479,6 +1494,24 @@ router_rebuild_descriptor(int force)
ri->cache_info.published_on = time(NULL);
ri->onion_pkey = crypto_pk_dup_key(get_onion_key()); /* must invoke from
* main thread */
if (options->BridgeRelay) {
/* For now, only bridges advertise an ipv6 or-address. And only one. */
const port_cfg_t *ipv6_orport = NULL;
SMARTLIST_FOREACH_BEGIN(get_configured_ports(), const port_cfg_t *, p) {
if (p->type == CONN_TYPE_OR_LISTENER &&
! p->no_advertise &&
! p->ipv4_only &&
tor_addr_family(&p->addr) == AF_INET6 &&
! tor_addr_is_internal(&p->addr, 1)) {
ipv6_orport = p;
break;
}
} SMARTLIST_FOREACH_END(p);
if (ipv6_orport) {
tor_addr_copy(&ri->ipv6_addr, &ipv6_orport->addr);
ri->ipv6_orport = ipv6_orport->port;
}
}
ri->identity_pkey = crypto_pk_dup_key(get_server_identity_key());
if (crypto_pk_get_digest(ri->identity_pkey,
ri->cache_info.identity_digest)<0) {
@ -1888,6 +1921,7 @@ router_dump_router_to_string(char *s, size_t maxlen, routerinfo_t *router,
int result=0;
addr_policy_t *tmpe;
char *family_line;
char *extra_or_address = NULL;
const or_options_t *options = get_options();
/* Make sure the identity key matches the one in the routerinfo. */
@ -1940,9 +1974,22 @@ router_dump_router_to_string(char *s, size_t maxlen, routerinfo_t *router,
router->cache_info.extra_info_digest, DIGEST_LEN);
}
if (router->ipv6_orport &&
tor_addr_family(&router->ipv6_addr) == AF_INET6) {
char addr[TOR_ADDR_BUF_LEN];
const char *a;
a = tor_addr_to_str(addr, &router->ipv6_addr, sizeof(addr), 1);
if (a) {
tor_asprintf(&extra_or_address,
"or-address %s:%d\n", a, router->ipv6_orport);
log_notice(LD_OR, "My line is <%s>", extra_or_address);
}
}
/* Generate the easy portion of the router descriptor. */
result = tor_snprintf(s, maxlen,
"router %s %s %d 0 %d\n"
"%s"
"platform %s\n"
"opt protocols Link 1 2 Circuit 1\n"
"published %s\n"
@ -1957,6 +2004,7 @@ router_dump_router_to_string(char *s, size_t maxlen, routerinfo_t *router,
router->address,
router->or_port,
decide_to_advertise_dirport(options, router->dir_port),
extra_or_address ? extra_or_address : "",
router->platform,
published,
fingerprint,
@ -1977,6 +2025,7 @@ router_dump_router_to_string(char *s, size_t maxlen, routerinfo_t *router,
tor_free(family_line);
tor_free(onion_pkey);
tor_free(identity_pkey);
tor_free(extra_or_address);
if (result < 0) {
log_warn(LD_BUG,"descriptor snprintf #1 ran out of room!");
@ -2072,6 +2121,52 @@ router_dump_router_to_string(char *s, size_t maxlen, routerinfo_t *router,
return (int)written+1;
}
/** Copy the primary (IPv4) OR port (IP address and TCP port) for
* <b>router</b> into *<b>ap_out</b>. */
void
router_get_prim_orport(const routerinfo_t *router, tor_addr_port_t *ap_out)
{
tor_assert(ap_out != NULL);
tor_addr_from_ipv4h(&ap_out->addr, router->addr);
ap_out->port = router->or_port;
}
/** Return 1 if we prefer the IPv6 address and OR TCP port of
* <b>router</b>, else 0.
*
* We prefer the IPv6 address if the router has one and
* i) the routerinfo_t says so
* or
* ii) the router has no IPv4 address. */
int
router_ipv6_preferred(const routerinfo_t *router)
{
return (!tor_addr_is_null(&router->ipv6_addr)
&& (router->ipv6_preferred || router->addr == 0));
}
/** Copy the preferred OR port (IP address and TCP port) for
* <b>router</b> into *<b>addr_out</b>. */
void
router_get_pref_orport(const routerinfo_t *router, tor_addr_port_t *ap_out)
{
if (router_ipv6_preferred(router))
router_get_pref_ipv6_orport(router, ap_out);
else
router_get_prim_orport(router, ap_out);
}
/** Copy the preferred IPv6 OR port (IP address and TCP port) for
* <b>router</b> into *<b>ap_out</b>. */
void
router_get_pref_ipv6_orport(const routerinfo_t *router,
tor_addr_port_t *ap_out)
{
tor_assert(ap_out != NULL);
tor_addr_copy(&ap_out->addr, &router->ipv6_addr);
ap_out->port = router->ipv6_orport;
}
/** Load the contents of <b>filename</b>, find the last line starting with
* <b>end_line</b>, ensure that its timestamp is not more than 25 hours in
* the past or more than 1 hour in the future with respect to <b>now</b>,

7
src/or/router.h
View File

@ -85,6 +85,13 @@ int router_pick_published_address(const or_options_t *options, uint32_t *addr);
int router_rebuild_descriptor(int force);
int router_dump_router_to_string(char *s, size_t maxlen, routerinfo_t *router,
crypto_pk_env_t *ident_key);
void router_get_prim_orport(const routerinfo_t *router,
tor_addr_port_t *addr_port_out);
void router_get_pref_orport(const routerinfo_t *router,
tor_addr_port_t *addr_port_out);
void router_get_pref_ipv6_orport(const routerinfo_t *router,
tor_addr_port_t *addr_port_out);
int router_ipv6_preferred(const routerinfo_t *router);
int extrainfo_dump_to_string(char **s, extrainfo_t *extrainfo,
crypto_pk_env_t *ident_key);
int is_legal_nickname(const char *s);

38
src/or/routerparse.c
View File

@ -64,6 +64,7 @@ typedef enum {
K_DIR_OPTIONS,
K_CLIENT_VERSIONS,
K_SERVER_VERSIONS,
K_OR_ADDRESS,
K_P,
K_R,
K_S,
@ -286,6 +287,7 @@ static token_rule_t routerdesc_token_table[] = {
T01("family", K_FAMILY, ARGS, NO_OBJ ),
T01("caches-extra-info", K_CACHES_EXTRA_INFO, NO_ARGS, NO_OBJ ),
T0N("or-address", K_OR_ADDRESS, GE(1), NO_OBJ ),
T0N("opt", K_OPT, CONCAT_ARGS, OBJ_OK ),
T1( "bandwidth", K_BANDWIDTH, GE(3), NO_OBJ ),
@ -541,6 +543,7 @@ static int router_get_hashes_impl(const char *s, size_t s_len,
const char *start_str, const char *end_str,
char end_char);
static void token_clear(directory_token_t *tok);
static smartlist_t *find_all_by_keyword(smartlist_t *s, directory_keyword k);
static smartlist_t *find_all_exitpolicy(smartlist_t *s);
static directory_token_t *_find_by_keyword(smartlist_t *s,
directory_keyword keyword,
@ -1506,6 +1509,27 @@ router_parse_entry_from_string(const char *s, const char *end,
"older Tors.");
goto err;
}
{
smartlist_t *or_addresses = find_all_by_keyword(tokens, K_OR_ADDRESS);
if (or_addresses) {
SMARTLIST_FOREACH_BEGIN(or_addresses, directory_token_t *, t) {
tor_addr_t a;
maskbits_t bits;
uint16_t port_min, port_max;
/* XXXX Prop186 the full spec allows much more than this. */
if (tor_addr_parse_mask_ports(t->args[0], &a, &bits, &port_min,
&port_max) == AF_INET6 &&
bits == 128 &&
port_min == port_max) {
/* Okay, this is one we can understand. */
tor_addr_copy(&router->ipv6_addr, &a);
router->ipv6_orport = port_min;
break;
}
} SMARTLIST_FOREACH_END(t);
smartlist_free(or_addresses);
}
}
exit_policy_tokens = find_all_exitpolicy(tokens);
if (!smartlist_len(exit_policy_tokens)) {
log_warn(LD_DIR, "No exit policy tokens in descriptor.");
@ -4134,6 +4158,20 @@ _find_by_keyword(smartlist_t *s, directory_keyword keyword,
return tok;
}
/** DOCDOC */
static smartlist_t *
find_all_by_keyword(smartlist_t *s, directory_keyword k)
{
smartlist_t *out = NULL;
SMARTLIST_FOREACH(s, directory_token_t *, t,
if (t->tp == k) {
if (!out)
out = smartlist_create();
smartlist_add(out, t);
});
return out;
}
/** Return a newly allocated smartlist of all accept or reject tokens in
* <b>s</b>.
*/

4
src/or/transports.c
View File

@ -12,6 +12,7 @@
#include "circuitbuild.h"
#include "transports.h"
#include "util.h"
#include "router.h"
#ifdef MS_WINDOWS
static void set_managed_proxy_environment(LPVOID *envp,
@ -1079,7 +1080,8 @@ set_managed_proxy_environment(char ***envp, const managed_proxy_t *mp)
bindaddr = get_bindaddr_for_proxy(mp);
/* XXX temp */
tor_asprintf(tmp++, "TOR_PT_ORPORT=127.0.0.1:%d", options->ORPort);
tor_asprintf(tmp++, "TOR_PT_ORPORT=127.0.0.1:%d",
router_get_advertised_or_port(options));
tor_asprintf(tmp++, "TOR_PT_SERVER_BINDADDR=%s", bindaddr);
tor_asprintf(tmp++, "TOR_PT_SERVER_TRANSPORTS=%s", transports_to_launch);
/* XXX temp*/

3
src/test/test_dir.c
View File

@ -96,6 +96,8 @@ test_dir_formats(void)
r1->cache_info.published_on = 0;
r1->or_port = 9000;
r1->dir_port = 9003;
tor_addr_parse(&r1->ipv6_addr, "1:2:3:4::");
r1->ipv6_orport = 9999;
r1->onion_pkey = crypto_pk_dup_key(pk1);
r1->identity_pkey = crypto_pk_dup_key(pk2);
r1->bandwidthrate = 1000;
@ -141,6 +143,7 @@ test_dir_formats(void)
test_assert(router_dump_router_to_string(buf, 2048, r1, pk2)>0);
strlcpy(buf2, "router Magri 18.244.0.1 9000 0 9003\n"
"or-address [1:2:3:4::]:9999\n"
"platform Tor "VERSION" on ", sizeof(buf2));
strlcat(buf2, get_uname(), sizeof(buf2));
strlcat(buf2, "\n"