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-rw-r--r--erts/configure.in2
-rw-r--r--erts/doc/src/epmd.xml19
-rw-r--r--erts/doc/src/erl.xml9
-rw-r--r--erts/doc/src/init.xml13
-rw-r--r--erts/emulator/beam/beam_bif_load.c3
-rw-r--r--erts/emulator/beam/beam_load.c2
-rw-r--r--erts/emulator/beam/bif.c2
-rw-r--r--erts/emulator/beam/dist.c2
-rw-r--r--erts/emulator/beam/erl_bits.c6
-rw-r--r--erts/emulator/beam/erl_gc.c3
-rw-r--r--erts/emulator/beam/erl_process.c2
-rw-r--r--erts/emulator/beam/erl_unicode.c2
-rw-r--r--erts/emulator/beam/io.c5
-rw-r--r--erts/epmd/src/epmd.c37
-rw-r--r--erts/epmd/src/epmd_cli.c2
-rw-r--r--erts/epmd/src/epmd_int.h59
-rw-r--r--erts/epmd/src/epmd_srv.c224
-rw-r--r--erts/etc/unix/to_erl.c8
18 files changed, 239 insertions, 161 deletions
diff --git a/erts/configure.in b/erts/configure.in
index 2590357372..31d1d55b8a 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -1793,7 +1793,7 @@ AC_CHECK_FUNCS([getipnodebyname getipnodebyaddr gethostbyname2])
AC_CHECK_FUNCS([ieee_handler fpsetmask finite isnan isinf res_gethostbyname dlopen \
pread pwrite writev memmove strerror strerror_r strncasecmp \
- gethrtime localtime_r gmtime_r mmap mremap memcpy mallopt \
+ gethrtime localtime_r gmtime_r inet_pton mmap mremap memcpy mallopt \
sbrk _sbrk __sbrk brk _brk __brk \
flockfile fstat strlcpy strlcat setsid posix2time setlocale nl_langinfo poll])
diff --git a/erts/doc/src/epmd.xml b/erts/doc/src/epmd.xml
index 474230cb38..8c3c1e5237 100644
--- a/erts/doc/src/epmd.xml
+++ b/erts/doc/src/epmd.xml
@@ -116,6 +116,16 @@
<p>These options are available when starting the actual name server. The name server is normally started automatically by the <c>erl</c> command (if not already available), but it can also be started at i.e. system start-up.</p>
<taglist>
+ <tag><c><![CDATA[-address List]]></c></tag>
+ <item>
+ <p>Let this instance of <c>epmd</c> listen only on the
+ comma-separated list of IP addresses and on the loopback address
+ (which is implicitely added to the list if it has not been
+ specified). This can also be set using the
+ <c><![CDATA[ERL_EPMD_ADDRESS]]></c> environment variable, see the
+ section <seealso marker="#environment_variables">Environment
+ variables</seealso> below.</p>
+ </item>
<tag><c><![CDATA[-port No]]></c></tag>
<item>
<p>Let this instance of epmd listen to another TCP port than
@@ -228,6 +238,15 @@
<marker id="environment_variables"></marker>
<title>Environment variables</title>
<taglist>
+ <tag><c><![CDATA[ERL_EPMD_ADDRESS]]></c></tag>
+ <item>
+ <p>This environment variable may be set to a comma-separated
+ list of IP addresses, in which case the <c>epmd</c> daemon
+ will listen only on the specified address(es) and on the
+ loopback address (which is implicitely added to the list if it
+ has not been specified). The default behaviour is to listen on
+ all available IP addresses.</p>
+ </item>
<tag><c><![CDATA[ERL_EPMD_PORT]]></c></tag>
<item>
<p>This environment variable can contain the port number epmd will use.
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml
index f4c81d9c47..514ee5ffaf 100644
--- a/erts/doc/src/erl.xml
+++ b/erts/doc/src/erl.xml
@@ -1004,6 +1004,15 @@
add to the code path.
See <seealso marker="kernel:code">code(3)</seealso>.</p>
</item>
+ <tag><c><![CDATA[ERL_EPMD_ADDRESS]]></c></tag>
+ <item>
+ <p>This environment variable may be set to a comma-separated
+ list of IP addresses, in which case the
+ <seealso marker="epmd">epmd</seealso> daemon
+ will listen only on the specified address(es) and on the
+ loopback address (which is implicitely added to the list if it
+ has not been specified).</p>
+ </item>
<tag><c><![CDATA[ERL_EPMD_PORT]]></c></tag>
<item>
<p>This environment variable can contain the port number to use when
diff --git a/erts/doc/src/init.xml b/erts/doc/src/init.xml
index 33364c709a..0e828389f6 100644
--- a/erts/doc/src/init.xml
+++ b/erts/doc/src/init.xml
@@ -67,19 +67,6 @@
</desc>
</func>
<func>
- <name>get_args() -> [Arg]</name>
- <fsummary>Get all non-flag command line arguments</fsummary>
- <type>
- <v>Arg = atom()</v>
- </type>
- <desc>
- <p>Returns any plain command line arguments as a list of atoms
- (possibly empty). It is recommended that
- <c>get_plain_arguments/1</c> is used instead, because of
- the limited length of atoms.</p>
- </desc>
- </func>
- <func>
<name>get_argument(Flag) -> {ok, Arg} | error</name>
<fsummary>Get the values associated with a command line user flag</fsummary>
<type>
diff --git a/erts/emulator/beam/beam_bif_load.c b/erts/emulator/beam/beam_bif_load.c
index 6ae9736141..1ca405961f 100644
--- a/erts/emulator/beam/beam_bif_load.c
+++ b/erts/emulator/beam/beam_bif_load.c
@@ -472,9 +472,6 @@ check_process_code(Process* rp, Module* modp)
for (oh = MSO(rp).first; oh; oh = oh->next) {
if (thing_subtag(oh->thing_word) == FUN_SUBTAG) {
ErlFunThing* funp = (ErlFunThing*) oh;
- BeamInstr* fun_code;
-
- fun_code = funp->fe->address;
if (INSIDE((BeamInstr *) funp->fe->address)) {
if (done_gc) {
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c
index c697b1ef31..57fe25453d 100644
--- a/erts/emulator/beam/beam_load.c
+++ b/erts/emulator/beam/beam_load.c
@@ -1411,7 +1411,6 @@ static int
load_code(LoaderState* stp)
{
int i;
- int tmp;
int ci;
int last_func_start = 0;
char* sign;
@@ -1931,7 +1930,6 @@ load_code(LoaderState* stp)
case 'P': /* Byte offset into tuple or stack */
case 'Q': /* Like 'P', but packable */
VerifyTag(stp, tag, TAG_u);
- tmp = tmp_op->a[arg].val;
code[ci++] = (BeamInstr) ((tmp_op->a[arg].val+1) * sizeof(Eterm));
break;
case 'l': /* Floating point register. */
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index f01580eb2b..6b1ce823cb 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -368,7 +368,6 @@ static int demonitor(Process *c_p, Eterm ref)
ErtsMonitor *mon = NULL; /* The monitor entry to delete */
Process *rp; /* Local target process */
Eterm to = NIL; /* Monitor link traget */
- Eterm ref_p; /* Pid of this end */
DistEntry *dep = NULL; /* Target's distribution entry */
int deref_de = 0;
int res;
@@ -381,7 +380,6 @@ static int demonitor(Process *c_p, Eterm ref)
res = ERTS_DEMONITOR_BADARG;
goto done; /* Cannot be this monitor's ref */
}
- ref_p = c_p->id;
mon = erts_lookup_monitor(c_p->monitors, ref);
if (!mon) {
diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c
index 044fd045a6..05eddf4ae0 100644
--- a/erts/emulator/beam/dist.c
+++ b/erts/emulator/beam/dist.c
@@ -904,7 +904,6 @@ int erts_net_message(Port *prt,
ErtsDistExternal ede;
byte *t;
Sint ctl_len;
- int orig_ctl_len;
Eterm arg;
Eterm from, to;
Eterm watcher, watched;
@@ -985,7 +984,6 @@ int erts_net_message(Port *prt,
PURIFY_MSG("data error");
goto data_error;
}
- orig_ctl_len = ctl_len;
if (ctl_len > DIST_CTL_DEFAULT_SIZE) {
ctl = erts_alloc(ERTS_ALC_T_DCTRL_BUF, ctl_len * sizeof(Eterm));
diff --git a/erts/emulator/beam/erl_bits.c b/erts/emulator/beam/erl_bits.c
index 6f8a7436d5..0174e5fc43 100644
--- a/erts/emulator/beam/erl_bits.c
+++ b/erts/emulator/beam/erl_bits.c
@@ -177,7 +177,6 @@ erts_bs_get_integer_2(Process *p, Uint num_bits, unsigned flags, ErlBinMatchBuff
byte* LSB;
byte* MSB;
Uint* hp;
- Uint* hp_end;
Uint words_needed;
Uint actual;
Uint v32;
@@ -405,7 +404,6 @@ erts_bs_get_integer_2(Process *p, Uint num_bits, unsigned flags, ErlBinMatchBuff
default:
words_needed = 1+WSIZE(bytes);
hp = HeapOnlyAlloc(p, words_needed);
- hp_end = hp + words_needed;
res = bytes_to_big(LSB, bytes, sgn, hp);
if (is_small(res)) {
p->htop = hp;
@@ -425,7 +423,6 @@ Eterm
erts_bs_get_binary_2(Process *p, Uint num_bits, unsigned flags, ErlBinMatchBuffer* mb)
{
ErlSubBin* sb;
- size_t num_bytes; /* Number of bytes in binary. */
if (mb->size - mb->offset < num_bits) { /* Asked for too many bits. */
return THE_NON_VALUE;
@@ -435,7 +432,6 @@ erts_bs_get_binary_2(Process *p, Uint num_bits, unsigned flags, ErlBinMatchBuffe
* From now on, we can't fail.
*/
- num_bytes = NBYTES(num_bits);
sb = (ErlSubBin *) HeapOnlyAlloc(p, ERL_SUB_BIN_SIZE);
sb->thing_word = HEADER_SUB_BIN;
@@ -1557,7 +1553,6 @@ Uint32
erts_bs_get_unaligned_uint32(ErlBinMatchBuffer* mb)
{
Uint bytes;
- Uint bits;
Uint offs;
byte bigbuf[4];
byte* LSB;
@@ -1567,7 +1562,6 @@ erts_bs_get_unaligned_uint32(ErlBinMatchBuffer* mb)
ASSERT(mb->size - mb->offset >= 32);
bytes = 4;
- bits = 8;
offs = 0;
LSB = bigbuf;
diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c
index d9150d86fe..c30d67ac88 100644
--- a/erts/emulator/beam/erl_gc.c
+++ b/erts/emulator/beam/erl_gc.c
@@ -455,7 +455,6 @@ erts_garbage_collect_hibernate(Process* p)
Eterm* heap;
Eterm* htop;
Rootset rootset;
- int n;
char* src;
Uint src_size;
Uint actual_size;
@@ -486,7 +485,7 @@ erts_garbage_collect_hibernate(Process* p)
sizeof(Eterm)*heap_size);
htop = heap;
- n = setup_rootset(p, p->arg_reg, p->arity, &rootset);
+ (void) setup_rootset(p, p->arg_reg, p->arity, &rootset);
#if HIPE
hipe_empty_nstack(p);
#endif
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index f8997f3c07..21ee72edf2 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -1267,7 +1267,6 @@ ssi_flags_set_wake(ErtsSchedulerSleepInfo *ssi)
static void
wake_scheduler(ErtsRunQueue *rq, int incq, int one)
{
- int res;
ErtsSchedulerSleepInfo *ssi;
ErtsSchedulerSleepList *sl;
@@ -1298,7 +1297,6 @@ wake_scheduler(ErtsRunQueue *rq, int incq, int one)
if (ssi->next)
ssi->next->prev = ssi->prev;
- res = sl->list != NULL;
erts_smp_spin_unlock(&sl->lock);
ERTS_THR_MEMORY_BARRIER;
diff --git a/erts/emulator/beam/erl_unicode.c b/erts/emulator/beam/erl_unicode.c
index 545b345a71..dacf228e92 100644
--- a/erts/emulator/beam/erl_unicode.c
+++ b/erts/emulator/beam/erl_unicode.c
@@ -902,7 +902,6 @@ static BIF_RETTYPE build_utf8_return(Process *p,Eterm bin,int pos,
static BIF_RETTYPE characters_to_utf8_trap(BIF_ALIST_3)
{
Eterm *real_bin;
- Sint need;
byte* bytes;
Eterm rest_term;
int left, sleft;
@@ -918,7 +917,6 @@ static BIF_RETTYPE characters_to_utf8_trap(BIF_ALIST_3)
ASSERT(is_binary(BIF_ARG_1));
real_bin = binary_val(BIF_ARG_1);
ASSERT(*real_bin == HEADER_PROC_BIN);
- need = ((ProcBin *) real_bin)->val->orig_size;
pos = (int) binary_size(BIF_ARG_1);
bytes = binary_bytes(BIF_ARG_1);
sleft = left = allowed_iterations(BIF_P);
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index f21a96c754..2e884a350e 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -1226,7 +1226,6 @@ void init_io(void)
{
int i;
ErlDrvEntry** dp;
- ErlDrvEntry* drv;
char maxports[21]; /* enough for any 64-bit integer */
size_t maxportssize = sizeof(maxports);
Uint ports_bits = ERTS_PORTS_BITS;
@@ -1309,10 +1308,8 @@ void init_io(void)
init_driver(&fd_driver, &fd_driver_entry, NULL);
init_driver(&vanilla_driver, &vanilla_driver_entry, NULL);
init_driver(&spawn_driver, &spawn_driver_entry, NULL);
- for (dp = driver_tab; *dp != NULL; dp++) {
- drv = *dp;
+ for (dp = driver_tab; *dp != NULL; dp++)
erts_add_driver_entry(*dp, NULL, 1);
- }
erts_smp_tsd_set(driver_list_lock_status_key, NULL);
erts_smp_mtx_unlock(&erts_driver_list_lock);
diff --git a/erts/epmd/src/epmd.c b/erts/epmd/src/epmd.c
index e94533f0ba..c503c8c8cf 100644
--- a/erts/epmd/src/epmd.c
+++ b/erts/epmd/src/epmd.c
@@ -33,6 +33,7 @@
static void usage(EpmdVars *);
static void run_daemon(EpmdVars*);
+static char* get_addresses(void);
static int get_port_no(void);
static int check_relaxed(void);
#ifdef __WIN32__
@@ -133,6 +134,7 @@ int main(int argc, char** argv)
{
EpmdVars g_empd_vars;
EpmdVars *g = &g_empd_vars;
+ int i;
#ifdef __WIN32__
WORD wVersionRequested;
WSADATA wsaData;
@@ -158,8 +160,9 @@ int main(int argc, char** argv)
g->argv = NULL;
#endif
- g->port = get_port_no();
- g->debug = 0;
+ g->addresses = get_addresses();
+ g->port = get_port_no();
+ g->debug = 0;
g->silent = 0;
g->is_daemon = 0;
@@ -168,12 +171,14 @@ int main(int argc, char** argv)
g->delay_accept = 0;
g->delay_write = 0;
g->progname = argv[0];
- g->listenfd = -1;
g->conn = NULL;
g->nodes.reg = g->nodes.unreg = g->nodes.unreg_tail = NULL;
g->nodes.unreg_count = 0;
g->active_conn = 0;
+ for (i = 0; i < MAX_LISTEN_SOCKETS; i++)
+ g->listenfd[i] = -1;
+
argc--;
argv++;
while (argc > 0) {
@@ -208,6 +213,11 @@ int main(int argc, char** argv)
else
usage(g);
epmd_cleanup_exit(g,0);
+ } else if (strcmp(argv[0], "-address") == 0) {
+ if (argc == 1)
+ usage(g);
+ g->addresses = argv[1];
+ argv += 2; argc -= 2;
} else if (strcmp(argv[0], "-port") == 0) {
if ((argc == 1) ||
((g->port = atoi(argv[1])) == 0))
@@ -252,13 +262,10 @@ int main(int argc, char** argv)
/*
* max_conn must not be greater than FD_SETSIZE.
* (at least QNX crashes)
- *
- * More correctly, it must be FD_SETSIZE - 1, beacuse the
- * listen FD is stored outside the connection array.
*/
if (g->max_conn > FD_SETSIZE) {
- g->max_conn = FD_SETSIZE - 1;
+ g->max_conn = FD_SETSIZE;
}
if (g->is_daemon) {
@@ -393,11 +400,14 @@ static void run_daemon(EpmdVars *g)
static void usage(EpmdVars *g)
{
- fprintf(stderr, "usage: epmd [-d|-debug] [DbgExtra...] [-port No] [-daemon]\n");
- fprintf(stderr, " [-relaxed_command_check]\n");
+ fprintf(stderr, "usage: epmd [-d|-debug] [DbgExtra...] [-address List]\n");
+ fprintf(stderr, " [-port No] [-daemon] [-relaxed_command_check]\n");
fprintf(stderr, " epmd [-d|-debug] [-port No] [-names|-kill|-stop name]\n\n");
fprintf(stderr, "See the Erlang epmd manual page for info about the usage.\n\n");
fprintf(stderr, "Regular options\n");
+ fprintf(stderr, " -address List\n");
+ fprintf(stderr, " Let epmd listen only on the comma-separated list of IP\n");
+ fprintf(stderr, " addresses (and on the loopback interface).\n");
fprintf(stderr, " -port No\n");
fprintf(stderr, " Let epmd listen to another port than default %d\n",
EPMD_PORT_NO);
@@ -555,8 +565,9 @@ void epmd_cleanup_exit(EpmdVars *g, int exitval)
epmd_conn_close(g,&g->conn[i]);
free(g->conn);
}
- if(g->listenfd >= 0)
- close(g->listenfd);
+ for(i=0; i < MAX_LISTEN_SOCKETS; i++)
+ if(g->listenfd[i] >= 0)
+ close(g->listenfd[i]);
free_all_nodes(g);
if(g->argv){
for(i=0; g->argv[i] != NULL; ++i)
@@ -568,6 +579,10 @@ void epmd_cleanup_exit(EpmdVars *g, int exitval)
exit(exitval);
}
+static char* get_addresses(void)
+{
+ return getenv("ERL_EPMD_ADDRESS");
+}
static int get_port_no(void)
{
char* port_str = getenv("ERL_EPMD_PORT");
diff --git a/erts/epmd/src/epmd_cli.c b/erts/epmd/src/epmd_cli.c
index 7c60ba0420..ac55ba6bb6 100644
--- a/erts/epmd/src/epmd_cli.c
+++ b/erts/epmd/src/epmd_cli.c
@@ -137,7 +137,7 @@ static int conn_to_epmd(EpmdVars *g)
{ /* store port number in unsigned short */
unsigned short sport = g->port;
- SET_ADDR_LOOPBACK(address, FAMILY, sport);
+ SET_ADDR(address, EPMD_ADDR_LOOPBACK, sport);
}
if (connect(connect_sock, (struct sockaddr*)&address, sizeof address) < 0)
diff --git a/erts/epmd/src/epmd_int.h b/erts/epmd/src/epmd_int.h
index c2558d52a1..2a0de4df9c 100644
--- a/erts/epmd/src/epmd_int.h
+++ b/erts/epmd/src/epmd_int.h
@@ -168,42 +168,40 @@
#if defined(HAVE_IN6) && defined(AF_INET6) && defined(EPMD6)
#define EPMD_SOCKADDR_IN sockaddr_in6
-#define FAMILY AF_INET6
-
-#define SET_ADDR_LOOPBACK(addr, af, port) do { \
- memset((char*)&(addr), 0, sizeof(addr)); \
- (addr).sin6_family = (af); \
- (addr).sin6_flowinfo = 0; \
- (addr).sin6_addr = in6addr_loopback; \
- (addr).sin6_port = htons(port); \
+#define EPMD_IN_ADDR in6_addr
+#define EPMD_S_ADDR s6_addr
+#define EPMD_ADDR_LOOPBACK in6addr_loopback.s6_addr
+#define EPMD_ADDR_ANY in6addr_any.s6_addr
+#define FAMILY AF_INET6
+
+#define SET_ADDR(dst, addr, port) do { \
+ memset((char*)&(dst), 0, sizeof(dst)); \
+ memcpy((char*)&(dst).sin6_addr.s6_addr, (char*)&(addr), 16); \
+ (dst).sin6_family = AF_INET6; \
+ (dst).sin6_flowinfo = 0; \
+ (dst).sin6_port = htons(port); \
} while(0)
-#define SET_ADDR_ANY(addr, af, port) do { \
- memset((char*)&(addr), 0, sizeof(addr)); \
- (addr).sin6_family = (af); \
- (addr).sin6_flowinfo = 0; \
- (addr).sin6_addr = in6addr_any; \
- (addr).sin6_port = htons(port); \
- } while(0)
+#define IS_ADDR_LOOPBACK(addr) \
+ (memcmp((addr).s6_addr, in6addr_loopback.s6_addr, 16) == 0)
#else /* Not IP v6 */
#define EPMD_SOCKADDR_IN sockaddr_in
-#define FAMILY AF_INET
-
-#define SET_ADDR_LOOPBACK(addr, af, port) do { \
- memset((char*)&(addr), 0, sizeof(addr)); \
- (addr).sin_family = (af); \
- (addr).sin_addr.s_addr = htonl(INADDR_LOOPBACK); \
- (addr).sin_port = htons(port); \
+#define EPMD_IN_ADDR in_addr
+#define EPMD_S_ADDR s_addr
+#define EPMD_ADDR_LOOPBACK htonl(INADDR_LOOPBACK)
+#define EPMD_ADDR_ANY htonl(INADDR_ANY)
+#define FAMILY AF_INET
+
+#define SET_ADDR(dst, addr, port) do { \
+ memset((char*)&(dst), 0, sizeof(dst)); \
+ (dst).sin_family = AF_INET; \
+ (dst).sin_addr.s_addr = (addr); \
+ (dst).sin_port = htons(port); \
} while(0)
-#define SET_ADDR_ANY(addr, af, port) do { \
- memset((char*)&(addr), 0, sizeof(addr)); \
- (addr).sin_family = (af); \
- (addr).sin_addr.s_addr = htonl(INADDR_ANY); \
- (addr).sin_port = htons(port); \
- } while(0)
+#define IS_ADDR_LOOPBACK(addr) ((addr).s_addr == htonl(INADDR_LOOPBACK))
#endif /* Not IP v6 */
@@ -231,6 +229,8 @@
/* Maximum length of a node name == atom name */
#define MAXSYMLEN 255
+#define MAX_LISTEN_SOCKETS 16
+
#define INBUF_SIZE 1024
#define OUTBUF_SIZE 1024
@@ -299,7 +299,8 @@ typedef struct {
Connection *conn;
Nodes nodes;
fd_set orig_read_mask;
- int listenfd;
+ int listenfd[MAX_LISTEN_SOCKETS];
+ char *addresses;
char **argv;
} EpmdVars;
diff --git a/erts/epmd/src/epmd_srv.c b/erts/epmd/src/epmd_srv.c
index 3499ab2934..4d9b454f97 100644
--- a/erts/epmd/src/epmd_srv.c
+++ b/erts/epmd/src/epmd_srv.c
@@ -24,6 +24,10 @@
#include "epmd.h" /* Renamed from 'epmd_r4.h' */
#include "epmd_int.h"
+#ifndef INADDR_NONE
+# define INADDR_NONE 0xffffffff
+#endif
+
/*
*
* This server is a local name server for Erlang nodes. Erlang nodes can
@@ -79,91 +83,157 @@ static void print_names(EpmdVars*);
void run(EpmdVars *g)
{
- int listensock;
+ struct EPMD_SOCKADDR_IN iserv_addr[MAX_LISTEN_SOCKETS];
+ int listensock[MAX_LISTEN_SOCKETS];
+ int num_sockets;
int i;
int opt;
- struct EPMD_SOCKADDR_IN iserv_addr;
+ unsigned short sport = g->port;
node_init(g);
g->conn = conn_init(g);
dbg_printf(g,2,"try to initiate listening port %d", g->port);
-
- if ((listensock = socket(FAMILY,SOCK_STREAM,0)) < 0) {
- dbg_perror(g,"error opening stream socket");
- epmd_cleanup_exit(g,1);
- }
- g->listenfd = listensock;
+
+ if (g->addresses != NULL)
+ {
+ char *tmp;
+ char *token;
+ int loopback_ok = 0;
+
+ if ((tmp = (char *)malloc(strlen(g->addresses) + 1)) == NULL)
+ {
+ dbg_perror(g,"cannot allocate memory");
+ epmd_cleanup_exit(g,1);
+ }
+ strcpy(tmp,g->addresses);
+
+ for(token = strtok(tmp,", "), num_sockets = 0;
+ token != NULL;
+ token = strtok(NULL,", "), num_sockets++)
+ {
+ struct EPMD_IN_ADDR addr;
+#ifdef HAVE_INET_PTON
+ int ret;
+
+ if ((ret = inet_pton(FAMILY,token,&addr)) == -1)
+ {
+ dbg_perror(g,"cannot convert IP address to network format");
+ epmd_cleanup_exit(g,1);
+ }
+ else if (ret == 0)
+#elif !defined(EPMD6)
+ if ((addr.EPMD_S_ADDR = inet_addr(token)) == INADDR_NONE)
+#endif
+ {
+ dbg_tty_printf(g,0,"cannot parse IP address \"%s\"",token);
+ epmd_cleanup_exit(g,1);
+ }
+
+ if (IS_ADDR_LOOPBACK(addr))
+ loopback_ok = 1;
+
+ if (num_sockets - loopback_ok == MAX_LISTEN_SOCKETS - 1)
+ {
+ dbg_tty_printf(g,0,"cannot listen on more than %d IP addresses",
+ MAX_LISTEN_SOCKETS);
+ epmd_cleanup_exit(g,1);
+ }
+
+ SET_ADDR(iserv_addr[num_sockets],addr.EPMD_S_ADDR,sport);
+ }
+
+ free(tmp);
+
+ if (!loopback_ok)
+ {
+ SET_ADDR(iserv_addr[num_sockets],EPMD_ADDR_LOOPBACK,sport);
+ num_sockets++;
+ }
+ }
+ else
+ {
+ SET_ADDR(iserv_addr[0],EPMD_ADDR_ANY,sport);
+ num_sockets = 1;
+ }
+
+#if !defined(__WIN32__)
+ /* We ignore the SIGPIPE signal that is raised when we call write
+ twice on a socket closed by the other end. */
+ signal(SIGPIPE, SIG_IGN);
+#endif
/*
* Initialize number of active file descriptors.
* Stdin, stdout, and stderr are still open.
- * One for the listen socket.
*/
- g->active_conn = 3+1;
+ g->active_conn = 3 + num_sockets;
+ g->max_conn -= num_sockets;
+
+ FD_ZERO(&g->orig_read_mask);
+
+ for (i = 0; i < num_sockets; i++)
+ {
+ if ((listensock[i] = socket(FAMILY,SOCK_STREAM,0)) < 0)
+ {
+ dbg_perror(g,"error opening stream socket");
+ epmd_cleanup_exit(g,1);
+ }
+ g->listenfd[i] = listensock[i];
- /*
- * Note that we must not enable the SO_REUSEADDR on Windows,
- * because addresses will be reused even if they are still in use.
- */
+ /*
+ * Note that we must not enable the SO_REUSEADDR on Windows,
+ * because addresses will be reused even if they are still in use.
+ */
#if !defined(__WIN32__)
- /* We ignore the SIGPIPE signal that is raised when we call write
- twice on a socket closed by the other end. */
- signal(SIGPIPE, SIG_IGN);
-
- opt = 1; /* Set this option */
- if (setsockopt(listensock,SOL_SOCKET,SO_REUSEADDR,(char* ) &opt,
- sizeof(opt)) <0) {
- dbg_perror(g,"can't set sockopt");
- epmd_cleanup_exit(g,1);
- }
+ opt = 1;
+ if (setsockopt(listensock[i],SOL_SOCKET,SO_REUSEADDR,(char* ) &opt,
+ sizeof(opt)) <0)
+ {
+ dbg_perror(g,"can't set sockopt");
+ epmd_cleanup_exit(g,1);
+ }
#endif
- /* In rare cases select returns because there is someone
- to accept but the request is withdrawn before the
- accept function is called. We set the listen socket
- to be non blocking to prevent us from being hanging
- in accept() waiting for the next request. */
+ /* In rare cases select returns because there is someone
+ to accept but the request is withdrawn before the
+ accept function is called. We set the listen socket
+ to be non blocking to prevent us from being hanging
+ in accept() waiting for the next request. */
#if (defined(__WIN32__) || defined(NO_FCNTL))
- opt = 1;
- if (ioctl(listensock, FIONBIO, &opt) != 0) /* Gives warning in VxWorks */
+ opt = 1;
+ /* Gives warning in VxWorks */
+ if (ioctl(listensock[i], FIONBIO, &opt) != 0)
#else
- opt = fcntl(listensock, F_GETFL, 0);
- if (fcntl(listensock, F_SETFL, opt | O_NONBLOCK) == -1)
+ opt = fcntl(listensock[i], F_GETFL, 0);
+ if (fcntl(listensock[i], F_SETFL, opt | O_NONBLOCK) == -1)
#endif /* __WIN32__ || VXWORKS */
- dbg_perror(g,"failed to set non-blocking mode of listening socket %d",
- listensock);
+ dbg_perror(g,"failed to set non-blocking mode of listening socket %d",
+ listensock[i]);
- { /* store port number in unsigned short */
- unsigned short sport = g->port;
- SET_ADDR_ANY(iserv_addr, FAMILY, sport);
- }
-
- if(bind(listensock,(struct sockaddr*) &iserv_addr, sizeof(iserv_addr)) < 0 )
- {
- if (errno == EADDRINUSE)
+ if (bind(listensock[i], (struct sockaddr*) &iserv_addr[i],
+ sizeof(iserv_addr[i])) < 0)
{
- dbg_tty_printf(g,1,"there is already a epmd running at port %d",
- g->port);
- epmd_cleanup_exit(g,0);
- }
- else
- {
- dbg_perror(g,"failed to bind socket");
- epmd_cleanup_exit(g,1);
+ if (errno == EADDRINUSE)
+ {
+ dbg_tty_printf(g,1,"there is already a epmd running at port %d",
+ g->port);
+ epmd_cleanup_exit(g,0);
+ }
+ else
+ {
+ dbg_perror(g,"failed to bind socket");
+ epmd_cleanup_exit(g,1);
+ }
}
- }
-
- dbg_printf(g,2,"starting");
- if(listen(listensock, SOMAXCONN) < 0) {
- dbg_perror(g,"failed to listen on socket");
- epmd_cleanup_exit(g,1);
- }
-
- FD_ZERO(&g->orig_read_mask);
- FD_SET(listensock,&g->orig_read_mask);
+ if(listen(listensock[i], SOMAXCONN) < 0) {
+ dbg_perror(g,"failed to listen on socket");
+ epmd_cleanup_exit(g,1);
+ }
+ FD_SET(listensock[i],&g->orig_read_mask);
+ }
dbg_tty_printf(g,2,"entering the main select() loop");
@@ -200,17 +270,18 @@ void run(EpmdVars *g)
sleep(g->delay_accept);
}
- if (FD_ISSET(listensock,&read_mask)) {
- if (do_accept(g, listensock) && g->active_conn < g->max_conn) {
- /*
- * The accept() succeeded, and we have at least one file
- * descriptor still free, which means that another accept()
- * could succeed. Go do do another select(), in case there
- * are more incoming connections waiting to be accepted.
- */
- goto select_again;
+ for (i = 0; i < num_sockets; i++)
+ if (FD_ISSET(listensock[i],&read_mask)) {
+ if (do_accept(g, listensock[i]) && g->active_conn < g->max_conn) {
+ /*
+ * The accept() succeeded, and we have at least one file
+ * descriptor still free, which means that another accept()
+ * could succeed. Go do do another select(), in case there
+ * are more incoming connections waiting to be accepted.
+ */
+ goto select_again;
+ }
}
- }
/* Check all open streams marked by select for data or a
close. We also close all open sockets except ALIVE
@@ -738,6 +809,7 @@ static int conn_open(EpmdVars *g,int fd)
for (i = 0; i < g->max_conn; i++) {
if (g->conn[i].open == EPMD_FALSE) {
struct sockaddr_in si;
+ struct sockaddr_in di;
#ifdef HAVE_SOCKLEN_T
socklen_t st;
#else
@@ -758,12 +830,16 @@ static int conn_open(EpmdVars *g,int fd)
/* Determine if connection is from localhost */
if (getpeername(s->fd,(struct sockaddr*) &si,&st) ||
st < sizeof(si)) {
- /* Failure to get peername is regarder as non local host */
+ /* Failure to get peername is regarded as non local host */
s->local_peer = EPMD_FALSE;
} else {
+ /* Only 127.x.x.x and connections from the host's IP address
+ allowed, no false positives */
s->local_peer =
- ((((unsigned) ntohl(si.sin_addr.s_addr)) & 0xFF000000U) ==
- 0x7F000000U); /* Only 127.x.x.x allowed, no false positives */
+ (((((unsigned) ntohl(si.sin_addr.s_addr)) & 0xFF000000U) ==
+ 0x7F000000U) ||
+ (getsockname(s->fd,(struct sockaddr*) &di,&st) ?
+ EPMD_FALSE : si.sin_addr.s_addr == di.sin_addr.s_addr));
}
dbg_tty_printf(g,2,(s->local_peer) ? "Local peer connected" :
"Non-local peer connected");
diff --git a/erts/etc/unix/to_erl.c b/erts/etc/unix/to_erl.c
index 886b301997..b7c3c956c6 100644
--- a/erts/etc/unix/to_erl.c
+++ b/erts/etc/unix/to_erl.c
@@ -125,7 +125,7 @@ static void usage(char *pname)
int main(int argc, char **argv)
{
char FIFO1[FILENAME_MAX], FIFO2[FILENAME_MAX];
- int i, len, wfd, rfd, result = 0;
+ int i, len, wfd, rfd;
fd_set readfds;
char buf[BUFSIZ];
char pipename[FILENAME_MAX];
@@ -367,7 +367,6 @@ int main(int argc, char **argv)
}
else {
fprintf(stderr, "Error in select.\n");
- result = -1;
break;
}
}
@@ -398,7 +397,6 @@ int main(int argc, char **argv)
close(wfd);
if (len < 0) {
fprintf(stderr, "Error in reading from stdin.\n");
- result = -1;
} else {
fprintf(stderr, "[EOF]\n\r");
}
@@ -420,7 +418,6 @@ int main(int argc, char **argv)
fprintf(stderr, "Error in writing to FIFO.\n");
close(rfd);
close(wfd);
- result = -1;
break;
}
STATUS("\" OK\r\n");
@@ -447,7 +444,6 @@ int main(int argc, char **argv)
close(wfd);
if (len < 0) {
fprintf(stderr, "Error in reading from FIFO.\n");
- result = -1;
} else
fprintf(stderr, "[End]\n\r");
break;
@@ -456,7 +452,6 @@ int main(int argc, char **argv)
if ((len=version_handshake(buf,len,wfd)) < 0) {
close(rfd);
close(wfd);
- result = -1;
break;
}
if (protocol_ver >= 1) {
@@ -475,7 +470,6 @@ int main(int argc, char **argv)
fprintf(stderr, "Error in writing to terminal.\n");
close(rfd);
close(wfd);
- result = -1;
break;
}
STATUS("\" OK\r\n");
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-12 11:37:25 +0000