diff options
30 files changed, 268 insertions, 256 deletions
diff --git a/erts/doc/src/erl_dist_protocol.xml b/erts/doc/src/erl_dist_protocol.xml index 1951d498cd..185c75fe84 100644 --- a/erts/doc/src/erl_dist_protocol.xml +++ b/erts/doc/src/erl_dist_protocol.xml @@ -109,8 +109,7 @@ <title>Register a Node in EPMD</title> <p>When a distributed node is started it registers itself in the EPMD. The message <c>ALIVE2_REQ</c> described below is sent from the node to - the EPMD. The response from the EPMD is <c>ALIVE2_X_RESP</c> (or - <c>ALIVE2_RESP</c>).</p> + the EPMD. The response from the EPMD is <c>ALIVE2_RESP</c>.</p> <table align="left"> <row> @@ -156,12 +155,12 @@ <tag><c>HighestVersion</c></tag> <item> <p>The highest distribution version that this node can handle. - The value in OTP 22 and later is 6.</p> + The value in Erlang/OTP R6B and later is 5.</p> </item> <tag><c>LowestVersion</c></tag> <item> <p>The lowest distribution version that this node can handle. - The value in OTP 22 and later is 5.</p> + The value in Erlang/OTP R6B and later is 5.</p> </item> <tag><c>Nlen</c></tag> <item> @@ -185,24 +184,7 @@ node is a distributed node. When the connection is closed, the node is automatically unregistered from the EPMD.</p> - <p>The response message is either <c>ALIVE2_X_RESP</c> or - <c>ALIVE2_RESP</c> depending on distribution version. If both the node - and EPMD support distribution version 6 then response is - <c>ALIVE2_X_RESP</c> otherwise it is the older <c>ALIVE2_RESP</c>:</p> - - <table align="left"> - <row> - <cell align="center">1</cell> - <cell align="center">1</cell> - <cell align="center">4</cell> - </row> - <row> - <cell align="center"><c>118</c></cell> - <cell align="center"><c>Result</c></cell> - <cell align="center"><c>Creation</c></cell> - </row> - <tcaption>ALIVE2_X_RESP (118) with 32 bit creation</tcaption> - </table> + <p>The response message <c>ALIVE2_RESP</c> is as follows:</p> <table align="left"> <row> @@ -215,7 +197,7 @@ <cell align="center"><c>Result</c></cell> <cell align="center"><c>Creation</c></cell> </row> - <tcaption>ALIVE2_RESP (121) with 16-bit creation</tcaption> + <tcaption>ALIVE2_RESP (121)</tcaption> </table> <p>Result = 0 -> ok, result > 0 -> error.</p> diff --git a/erts/doc/src/erl_ext_fig.gif b/erts/doc/src/erl_ext_fig.gif Binary files differindex 40dd17bd5e..14d6bbc871 100644 --- a/erts/doc/src/erl_ext_fig.gif +++ b/erts/doc/src/erl_ext_fig.gif diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c index d0e2d9afc2..b81056c774 100644 --- a/erts/emulator/beam/bif.c +++ b/erts/emulator/beam/bif.c @@ -1915,7 +1915,7 @@ do_send(Process *p, Eterm to, Eterm msg, Eterm return_term, Eterm *refp, erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); erts_dsprintf(dsbufp, "Discarding message %T from %T to %T in an old " - "incarnation (%u) of this node (%u)\n", + "incarnation (%d) of this node (%d)\n", msg, p->common.id, to, @@ -1959,7 +1959,7 @@ do_send(Process *p, Eterm to, Eterm msg, Eterm return_term, Eterm *refp, erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf(); erts_dsprintf(dsbufp, "Discarding message %T from %T to %T in an old " - "incarnation (%u) of this node (%u)\n", + "incarnation (%d) of this node (%d)\n", msg, p->common.id, to, diff --git a/erts/emulator/beam/big.c b/erts/emulator/beam/big.c index 7666f23a4f..522f50287a 100644 --- a/erts/emulator/beam/big.c +++ b/erts/emulator/beam/big.c @@ -2176,24 +2176,6 @@ term_to_Uint64(Eterm term, Uint64 *up) #endif } -int -term_to_Uint32(Eterm term, Uint32 *up) -{ -#if ERTS_SIZEOF_ETERM == 4 - return term_to_Uint(term,up); -#else - if (is_small(term)) { - Sint i = signed_val(term); - if (i >= 0) { - *up = (Uint32) i; - return 1; - } - } - *up = BADARG; - return 0; -#endif -} - int term_to_Sint(Eterm term, Sint *sp) { diff --git a/erts/emulator/beam/big.h b/erts/emulator/beam/big.h index 3fed076419..ad19cce395 100644 --- a/erts/emulator/beam/big.h +++ b/erts/emulator/beam/big.h @@ -168,8 +168,6 @@ Eterm erts_uint64_array_to_big(Uint **, int, int, Uint64 *); int term_to_Uint64(Eterm, Uint64*); int term_to_Sint64(Eterm, Sint64*); #endif -int term_to_Uint32(Eterm, Uint32*); - Uint32 big_to_uint32(Eterm b); int term_equals_2pow32(Eterm); diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c index 456b6fdac0..30fe13fad3 100644 --- a/erts/emulator/beam/dist.c +++ b/erts/emulator/beam/dist.c @@ -3756,10 +3756,12 @@ int distribution_info(fmtfn_t to, void *arg) /* Called by break handler */ BIF_RETTYPE setnode_2(BIF_ALIST_2) { Process *net_kernel; - Uint32 creation; + Uint creation; /* valid creation ? */ - if(!term_to_Uint32(BIF_ARG_2, &creation)) + if(!term_to_Uint(BIF_ARG_2, &creation)) + goto error; + if(creation > 3) goto error; /* valid node name ? */ @@ -3803,7 +3805,7 @@ BIF_RETTYPE setnode_2(BIF_ALIST_2) erts_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN); erts_thr_progress_block(); inc_no_nodes(); - erts_set_this_node(BIF_ARG_1, creation); + erts_set_this_node(BIF_ARG_1, (Uint32) creation); erts_is_alive = 1; send_nodes_mon_msgs(NULL, am_nodeup, BIF_ARG_1, am_visible, NIL); erts_thr_progress_unblock(); diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h index f953a2ab8c..067028634b 100644 --- a/erts/emulator/beam/dist.h +++ b/erts/emulator/beam/dist.h @@ -54,12 +54,11 @@ #define DFLAG_DIST_MANDATORY (DFLAG_EXTENDED_REFERENCES \ | DFLAG_EXTENDED_PIDS_PORTS \ | DFLAG_UTF8_ATOMS \ - | DFLAG_NEW_FUN_TAGS \ - | DFLAG_BIG_CREATION) + | DFLAG_NEW_FUN_TAGS) /* * Additional optimistic flags when encoding toward pending connection. - * If remote node (erl_interface) does not support these then we may need + * If remote node (erl_interface) does not supporting these then we may need * to transcode messages enqueued before connection setup was finished. */ #define DFLAG_DIST_HOPEFULLY (DFLAG_EXPORT_PTR_TAG \ @@ -76,6 +75,7 @@ | DFLAG_SMALL_ATOM_TAGS \ | DFLAG_UTF8_ATOMS \ | DFLAG_MAP_TAG \ + | DFLAG_BIG_CREATION \ | DFLAG_SEND_SENDER \ | DFLAG_BIG_SEQTRACE_LABELS \ | DFLAG_EXIT_PAYLOAD \ diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index a2f6284c9d..7ff345a54b 100644 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -2799,10 +2799,7 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) } else if (BIF_ARG_1 == am_threads) { return am_true; } else if (BIF_ARG_1 == am_creation) { - Uint hsz = 0; - erts_bld_uint(NULL, &hsz, erts_this_node->creation); - hp = hsz ? HAlloc(BIF_P, hsz) : NULL; - BIF_RET(erts_bld_uint(&hp, NULL, erts_this_node->creation)); + return make_small(erts_this_node->creation); } else if (BIF_ARG_1 == am_break_ignored) { extern int ignore_break; if (ignore_break) diff --git a/erts/emulator/beam/erl_node_tables.c b/erts/emulator/beam/erl_node_tables.c index 49dea8919b..5eb9939b73 100644 --- a/erts/emulator/beam/erl_node_tables.c +++ b/erts/emulator/beam/erl_node_tables.c @@ -977,7 +977,7 @@ static void print_node(void *venp, void *vpndp) if(pndp->sysname == NIL) { erts_print(pndp->to, pndp->to_arg, "Name: %T ", enp->sysname); } - erts_print(pndp->to, pndp->to_arg, " %u", enp->creation); + erts_print(pndp->to, pndp->to_arg, " %d", enp->creation); #ifdef DEBUG erts_print(pndp->to, pndp->to_arg, " (refc=%ld)", erts_refc_read(&enp->refc, 0)); @@ -1020,7 +1020,7 @@ void erts_print_node_info(fmtfn_t to, /* ----------------------------------------------------------------------- */ void -erts_set_this_node(Eterm sysname, Uint32 creation) +erts_set_this_node(Eterm sysname, Uint creation) { ERTS_LC_ASSERT(erts_thr_progress_is_blocking()); ASSERT(2 <= de_refc_read(erts_this_dist_entry, 2)); diff --git a/erts/emulator/beam/erl_node_tables.h b/erts/emulator/beam/erl_node_tables.h index fc3e117463..aa8af12555 100644 --- a/erts/emulator/beam/erl_node_tables.h +++ b/erts/emulator/beam/erl_node_tables.h @@ -259,7 +259,7 @@ void erts_set_dist_entry_pending(DistEntry *); void erts_set_dist_entry_connected(DistEntry *, Eterm, Uint); ErlNode *erts_find_or_insert_node(Eterm, Uint32, Eterm); void erts_schedule_delete_node(ErlNode *); -void erts_set_this_node(Eterm, Uint32); +void erts_set_this_node(Eterm, Uint); Uint erts_node_table_size(void); void erts_init_node_tables(int); void erts_node_table_info(fmtfn_t, void *); diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c index fa8314c115..395ff51ad3 100644 --- a/erts/emulator/beam/external.c +++ b/erts/emulator/beam/external.c @@ -51,17 +51,18 @@ #define MAX_STRING_LEN 0xffff -/* - * MAX value for the creation field in pid, port and reference - * for the old PID_EXT, PORT_EXT, REFERENCE_EXT and NEW_REFERENCE_EXT. - * Older nodes (OTP 19-21) will send us these so we must be able to decode them. - * - * From OTP 22 DFLAG_BIG_CREATION is mandatory so this node will always - * encode with new big 32-bit creations using NEW_PID_EXT, NEW_PORT_EXT - * and NEWER_REFERENCE_EXT. +/* MAX value for the creation field in pid, port and reference + for the local node and for the current external format. + + Larger creation values than this are allowed in external pid, port and refs + encoded with NEW_PID_EXT, NEW_PORT_EXT and NEWER_REFERENCE_EXT. + The point here is to prepare for future upgrade to 32-bit creation. + OTP-19 (erts-8.0) can handle big creation values from other (newer) nodes, + but do not use big creation values for the local node yet, + as we still may have to communicate with older nodes. */ -#define ERTS_MAX_TINY_CREATION (3) -#define is_tiny_creation(Cre) ((unsigned)(Cre) <= ERTS_MAX_TINY_CREATION) +#define ERTS_MAX_LOCAL_CREATION (3) +#define is_valid_creation(Cre) ((unsigned)(Cre) <= ERTS_MAX_LOCAL_CREATION) #undef ERTS_DEBUG_USE_DIST_SEP #ifdef DEBUG @@ -2383,8 +2384,7 @@ enc_pid(ErtsAtomCacheMap *acmp, Eterm pid, byte* ep, Uint32 dflags) Eterm sysname = ((is_internal_pid(pid) && (dflags & DFLAG_INTERNAL_TAGS)) ? INTERNAL_LOCAL_SYSNAME : pid_node_name(pid)); Uint32 creation = pid_creation(pid); - - *ep++ = NEW_PID_EXT; + byte* tagp = ep++; /* insert atom here containing host and sysname */ ep = enc_atom(acmp, sysname, ep, dflags); @@ -2396,8 +2396,15 @@ enc_pid(ErtsAtomCacheMap *acmp, Eterm pid, byte* ep, Uint32 dflags) ep += 4; put_int32(os, ep); ep += 4; - put_int32(creation, ep); - ep += 4; + if (creation <= ERTS_MAX_LOCAL_CREATION) { + *tagp = PID_EXT; + *ep++ = creation; + } else { + ASSERT(is_external_pid(pid)); + *tagp = NEW_PID_EXT; + put_int32(creation, ep); + ep += 4; + } return ep; } @@ -2517,7 +2524,7 @@ dec_pid(ErtsDistExternal *edep, ErtsHeapFactory* factory, byte* ep, if (tag == PID_EXT) { cre = get_int8(ep); ep += 1; - if (!is_tiny_creation(cre)) { + if (!is_valid_creation(cre)) { return NULL; } } else { @@ -2778,18 +2785,25 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Eterm sysname = (((dflags & DFLAG_INTERNAL_TAGS) && is_internal_ref(obj)) ? INTERNAL_LOCAL_SYSNAME : ref_node_name(obj)); Uint32 creation = ref_creation(obj); + byte* tagp = ep++; ASSERT(dflags & DFLAG_EXTENDED_REFERENCES); erts_magic_ref_save_bin(obj); - *ep++ = NEWER_REFERENCE_EXT; i = ref_no_numbers(obj); put_int16(i, ep); ep += 2; ep = enc_atom(acmp, sysname, ep, dflags); - put_int32(creation, ep); - ep += 4; + if (creation <= ERTS_MAX_LOCAL_CREATION) { + *tagp = NEW_REFERENCE_EXT; + *ep++ = creation; + } else { + ASSERT(is_external_ref(obj)); + *tagp = NEWER_REFERENCE_EXT; + put_int32(creation, ep); + ep += 4; + } ref_num = ref_numbers(obj); for (j = 0; j < i; j++) { put_int32(ref_num[j], ep); @@ -2802,14 +2816,21 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Eterm sysname = (((dflags & DFLAG_INTERNAL_TAGS) && is_internal_port(obj)) ? INTERNAL_LOCAL_SYSNAME : port_node_name(obj)); Uint32 creation = port_creation(obj); + byte* tagp = ep++; - *ep++ = NEW_PORT_EXT; ep = enc_atom(acmp, sysname, ep, dflags); j = port_number(obj); put_int32(j, ep); ep += 4; - put_int32(creation, ep); - ep += 4; + if (creation <= ERTS_MAX_LOCAL_CREATION) { + *tagp = PORT_EXT; + *ep++ = creation; + } else { + ASSERT(is_external_port(obj)); + *tagp = NEW_PORT_EXT; + put_int32(creation, ep); + ep += 4; + } break; } case LIST_DEF: @@ -3504,7 +3525,7 @@ dec_term_atom_common: if (tag == PORT_EXT) { cre = get_int8(ep); ep++; - if (!is_tiny_creation(cre)) { + if (!is_valid_creation(cre)) { goto error; } } @@ -3551,7 +3572,7 @@ dec_term_atom_common: cre = get_int8(ep); ep += 1; - if (!is_tiny_creation(cre)) { + if (!is_valid_creation(cre)) { goto error; } goto ref_ext_common; @@ -3565,7 +3586,7 @@ dec_term_atom_common: cre = get_int8(ep); ep += 1; - if (!is_tiny_creation(cre)) { + if (!is_valid_creation(cre)) { goto error; } r0 = get_int32(ep); @@ -4263,21 +4284,30 @@ encode_size_struct_int(TTBSizeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, result += 1 + 4 + 1 + i; /* tag,size,sign,digits */ break; case EXTERNAL_PID_DEF: + if (external_pid_creation(obj) > ERTS_MAX_LOCAL_CREATION) + result += 3; + /*fall through*/ case PID_DEF: result += (1 + encode_size_struct2(acmp, pid_node_name(obj), dflags) + - 4 + 4 + 4); + 4 + 4 + 1); break; case EXTERNAL_REF_DEF: + if (external_ref_creation(obj) > ERTS_MAX_LOCAL_CREATION) + result += 3; + /*fall through*/ case REF_DEF: ASSERT(dflags & DFLAG_EXTENDED_REFERENCES); i = ref_no_numbers(obj); result += (1 + 2 + encode_size_struct2(acmp, ref_node_name(obj), dflags) + - 4 + 4*i); + 1 + 4*i); break; case EXTERNAL_PORT_DEF: + if (external_port_creation(obj) > ERTS_MAX_LOCAL_CREATION) + result += 3; + /*fall through*/ case PORT_DEF: result += (1 + encode_size_struct2(acmp, port_node_name(obj), dflags) + - 4 + 4); + 4 + 1); break; case LIST_DEF: { int is_str = is_external_string(obj, &m); diff --git a/erts/epmd/epmd.mk b/erts/epmd/epmd.mk index f6889a7ff1..b1fd04dc04 100644 --- a/erts/epmd/epmd.mk +++ b/erts/epmd/epmd.mk @@ -67,5 +67,5 @@ EPMD_NODE_TYPE=110 # Distribution format 5 contains the new md5 based handshake. EPMD_DIST_LOW=5 -EPMD_DIST_HIGH=6 +EPMD_DIST_HIGH=5 diff --git a/erts/epmd/src/epmd.h b/erts/epmd/src/epmd.h index 7332294d3d..cffcd4ae7a 100644 --- a/erts/epmd/src/epmd.h +++ b/erts/epmd/src/epmd.h @@ -26,7 +26,6 @@ #define EPMD_ALIVE2_REQ 'x' #define EPMD_PORT2_REQ 'z' #define EPMD_ALIVE2_RESP 'y' -#define EPMD_ALIVE2_X_RESP 'v' #define EPMD_PORT2_RESP 'w' #define EPMD_NAMES_REQ 'n' diff --git a/erts/epmd/src/epmd_int.h b/erts/epmd/src/epmd_int.h index a5156a142e..ed9bbdb8cd 100644 --- a/erts/epmd/src/epmd_int.h +++ b/erts/epmd/src/epmd_int.h @@ -277,12 +277,6 @@ static const struct in6_addr in6addr_loopback = #define put_int16(i, s) {((unsigned char*)(s))[0] = ((i) >> 8) & 0xff; \ ((unsigned char*)(s))[1] = (i) & 0xff;} -#define put_int32(i, s) do {((char*)(s))[0] = (char)((i) >> 24) & 0xff; \ - ((char*)(s))[1] = (char)((i) >> 16) & 0xff; \ - ((char*)(s))[2] = (char)((i) >> 8) & 0xff; \ - ((char*)(s))[3] = (char)(i) & 0xff;} \ - while (0) - #if defined(__GNUC__) # define EPMD_INLINE __inline__ #elif defined(__WIN32__) @@ -313,10 +307,10 @@ struct enode { int fd; /* The socket in use */ unsigned short port; /* Port number of Erlang node */ char symname[MAXSYMLEN+1]; /* Name of the Erlang node */ - unsigned int cr_counter; /* Used to generate 'creation' numbers */ + short creation; /* Started as a random number 1..3 */ char nodetype; /* 77 = normal erlang node 72 = hidden (c-node */ char protocol; /* 0 = tcp/ipv4 */ - unsigned short highvsn; /* 5: creation=1..3, 6: creation=1..(2^32-1)*/ + unsigned short highvsn; /* 0 = OTP-R3 erts-4.6.x, 1 = OTP-R4 erts-4.7.x*/ unsigned short lowvsn; int extralen; char extra[MAXSYMLEN+1]; diff --git a/erts/epmd/src/epmd_srv.c b/erts/epmd/src/epmd_srv.c index 633ec71e5f..3c6f1fbdf4 100644 --- a/erts/epmd/src/epmd_srv.c +++ b/erts/epmd/src/epmd_srv.c @@ -665,21 +665,6 @@ static int do_accept(EpmdVars *g,int listensock) return conn_open(g,msgsock); } -static void bump_creation(Node* node) -{ - if (++node->cr_counter == 0) - node->cr_counter = 1; -} -static unsigned int get_creation(Node* node) -{ - if (node->highvsn >= 6) { - return node->cr_counter; /* 1..(2^32-1)*/ - } - else { - return (node->cr_counter - 1) % 3 + 1; /* 1..3 */ - } -} - /* buf is actually one byte larger than bsize, giving place for null termination */ static void do_request(g, fd, s, buf, bsize) @@ -721,10 +706,8 @@ static void do_request(g, fd, s, buf, bsize) unsigned char protocol; unsigned short highvsn; unsigned short lowvsn; - unsigned int creation; int namelen; int extralen; - int replylen; char *name; char *extra; eport = get_int16(&buf[1]); @@ -754,22 +737,17 @@ static void do_request(g, fd, s, buf, bsize) extra = &buf[11+namelen+2]; extra[extralen]='\000'; - node = node_reg2(g, namelen, name, fd, eport, nodetype, protocol, - highvsn, lowvsn, extralen, extra); - creation = node ? get_creation(node) : 99; - wbuf[1] = node ? 0 : 1; /* ok | error */ - if (highvsn >= 6) { - wbuf[0] = EPMD_ALIVE2_X_RESP; - put_int32(creation, wbuf+2); - replylen = 6; - } - else { - wbuf[0] = EPMD_ALIVE2_RESP; - put_int16(creation, wbuf+2); - replylen = 4; - } + wbuf[0] = EPMD_ALIVE2_RESP; + if ((node = node_reg2(g, namelen, name, fd, eport, nodetype, protocol, + highvsn, lowvsn, extralen, extra)) == NULL) { + wbuf[1] = 1; /* error */ + put_int16(99, wbuf+2); + } else { + wbuf[1] = 0; /* ok */ + put_int16(node->creation, wbuf+2); + } - if (!reply(g, fd, wbuf, replylen)) + if (!reply(g, fd, wbuf, 4)) { node_unreg(g, name); dbg_tty_printf(g,1,"** failed to send ALIVE2_RESP for \"%s\"", @@ -1222,8 +1200,8 @@ static int node_unreg(EpmdVars *g,char *name) for (; node; prev = &node->next, node = node->next) if (is_same_str(node->symname, name)) { - dbg_tty_printf(g,1,"unregistering '%s:%u', port %d", - node->symname, get_creation(node), node->port); + dbg_tty_printf(g,1,"unregistering '%s:%d', port %d", + node->symname, node->creation, node->port); *prev = node->next; /* Link out from "reg" list */ @@ -1257,8 +1235,8 @@ static int node_unreg_sock(EpmdVars *g,int fd) for (; node; prev = &node->next, node = node->next) if (node->fd == fd) { - dbg_tty_printf(g,1,"unregistering '%s:%u', port %d", - node->symname, get_creation(node), node->port); + dbg_tty_printf(g,1,"unregistering '%s:%d', port %d", + node->symname, node->creation, node->port); *prev = node->next; /* Link out from "reg" list */ @@ -1286,8 +1264,19 @@ static int node_unreg_sock(EpmdVars *g,int fd) } /* - * Register a new node + * Finding a node slot and a (name,creation) name is a bit tricky. + * We try in order + * + * 1. If the name was used before and we can reuse that slot but use + * a new "creation" digit in the range 1..3. + * + * 2. We try to find a new unused slot. + * + * 3. We try to use an used slot this isn't used any longer. + * FIXME: The criteria for *what* slot to steal should be improved. + * Perhaps use the oldest or something. */ + static Node *node_reg2(EpmdVars *g, int namelen, char* name, @@ -1357,7 +1346,7 @@ static Node *node_reg2(EpmdVars *g, } /* Try to find the name in the used queue so that we - can change "creation" number */ + can change "creation" number 1..3 */ prev = NULL; @@ -1386,8 +1375,9 @@ static Node *node_reg2(EpmdVars *g, g->nodes.unreg_count--; - /* When reusing we change the "creation" number */ - bump_creation(node); + /* When reusing we change the "creation" number 1..3 */ + + node->creation = node->creation % 3 + 1; break; } @@ -1414,8 +1404,7 @@ static Node *node_reg2(EpmdVars *g, exit(1); } - node->cr_counter = current_time(g); /* "random" */ - bump_creation(node); + node->creation = (current_time(g) % 3) + 1; /* "random" 1-3 */ } } @@ -1434,11 +1423,11 @@ static Node *node_reg2(EpmdVars *g, select_fd_set(g, fd); if (highvsn == 0) { - dbg_tty_printf(g,1,"registering '%s:%u', port %d", - node->symname, get_creation(node), node->port); + dbg_tty_printf(g,1,"registering '%s:%d', port %d", + node->symname, node->creation, node->port); } else { - dbg_tty_printf(g,1,"registering '%s:%u', port %d", - node->symname, get_creation(node), node->port); + dbg_tty_printf(g,1,"registering '%s:%d', port %d", + node->symname, node->creation, node->port); dbg_tty_printf(g,1,"type %d proto %d highvsn %d lowvsn %d", nodetype, protocol, highvsn, lowvsn); } @@ -1572,8 +1561,8 @@ static void print_names(EpmdVars *g) for (node = g->nodes.reg; node; node = node->next) { - fprintf(stderr,"***** active name \"%s#%u\" at port %d, fd = %d\r\n", - node->symname, get_creation(node), node->port, node->fd); + fprintf(stderr,"***** active name \"%s#%d\" at port %d, fd = %d\r\n", + node->symname, node->creation, node->port, node->fd); count ++; } @@ -1583,8 +1572,8 @@ static void print_names(EpmdVars *g) for (node = g->nodes.unreg; node; node = node->next) { - fprintf(stderr,"***** old/unused name \"%s#%u\"\r\n", - node->symname, get_creation(node)); + fprintf(stderr,"***** old/unused name \"%s#%d\"\r\n", + node->symname, node->creation); count ++; } diff --git a/erts/test/erl_print_SUITE.erl b/erts/test/erl_print_SUITE.erl index 0a5987df88..463d890688 100644 --- a/erts/test/erl_print_SUITE.erl +++ b/erts/test/erl_print_SUITE.erl @@ -324,9 +324,6 @@ run_case(Config, TestArgs, Fun) -> -define(PORT_EXT, 102). -define(PID_EXT, 103). -define(NEW_REFERENCE_EXT, 114). --define(NEW_PID_EXT, $X). --define(NEW_PORT_EXT, $Y). --define(NEWER_REFERENCE_EXT, $Z). uint32_be(Uint) when is_integer(Uint), 0 =< Uint, Uint < 1 bsl 32 -> [(Uint bsr 24) band 16#ff, @@ -354,13 +351,13 @@ mk_pid({NodeName, Creation}, Number, Serial) when is_atom(NodeName) -> mk_pid({atom_to_list(NodeName), Creation}, Number, Serial); mk_pid({NodeName, Creation}, Number, Serial) -> case catch binary_to_term(list_to_binary([?VERSION_MAGIC, - ?NEW_PID_EXT, + ?PID_EXT, ?ATOM_EXT, uint16_be(length(NodeName)), NodeName, uint32_be(Number), uint32_be(Serial), - uint32_be(Creation)])) of + uint8(Creation)])) of Pid when is_pid(Pid) -> Pid; {'EXIT', {badarg, _}} -> @@ -373,12 +370,12 @@ mk_port({NodeName, Creation}, Number) when is_atom(NodeName) -> mk_port({atom_to_list(NodeName), Creation}, Number); mk_port({NodeName, Creation}, Number) -> case catch binary_to_term(list_to_binary([?VERSION_MAGIC, - ?NEW_PORT_EXT, + ?PORT_EXT, ?ATOM_EXT, uint16_be(length(NodeName)), NodeName, uint32_be(Number), - uint32_be(Creation)])) of + uint8(Creation)])) of Port when is_port(Port) -> Port; {'EXIT', {badarg, _}} -> @@ -391,16 +388,33 @@ mk_ref({NodeName, Creation}, Numbers) when is_atom(NodeName), is_integer(Creation), is_list(Numbers) -> mk_ref({atom_to_list(NodeName), Creation}, Numbers); +mk_ref({NodeName, Creation}, [Number]) when is_list(NodeName), + is_integer(Creation), + is_integer(Number) -> + case catch binary_to_term(list_to_binary([?VERSION_MAGIC, + ?REFERENCE_EXT, + ?ATOM_EXT, + uint16_be(length(NodeName)), + NodeName, + uint32_be(Number), + uint8(Creation)])) of + Ref when is_reference(Ref) -> + Ref; + {'EXIT', {badarg, _}} -> + exit({badarg, mk_ref, [{NodeName, Creation}, [Number]]}); + Other -> + exit({unexpected_binary_to_term_result, Other}) + end; mk_ref({NodeName, Creation}, Numbers) when is_list(NodeName), is_integer(Creation), is_list(Numbers) -> case catch binary_to_term(list_to_binary([?VERSION_MAGIC, - ?NEWER_REFERENCE_EXT, + ?NEW_REFERENCE_EXT, uint16_be(length(Numbers)), ?ATOM_EXT, uint16_be(length(NodeName)), NodeName, - uint32_be(Creation), + uint8(Creation), lists:map(fun (N) -> uint32_be(N) end, @@ -415,10 +429,11 @@ mk_ref({NodeName, Creation}, Numbers) when is_list(NodeName), my_cre() -> erlang:system_info(creation). -oth_cre(N) when N >= 0, N < (1 bsl 32) -> - (N rem ((1 bsl 32) - 1)) + 1; -oth_cre(N) -> - exit({invalid_creation, N}). +oth_cre(0) -> 1; +oth_cre(1) -> 2; +oth_cre(2) -> 3; +oth_cre(3) -> 1; +oth_cre(N) -> exit({invalid_creation, N}). str_1_bsl_10000() -> "19950631168807583848837421626835850838234968318861924548520089498529438830221946631919961684036194597899331129423209124271556491349413781117593785932096323957855730046793794526765246551266059895520550086918193311542508608460618104685509074866089624888090489894838009253941633257850621568309473902556912388065225096643874441046759871626985453222868538161694315775629640762836880760732228535091641476183956381458969463899410840960536267821064621427333394036525565649530603142680234969400335934316651459297773279665775606172582031407994198179607378245683762280037302885487251900834464581454650557929601414833921615734588139257095379769119277800826957735674444123062018757836325502728323789270710373802866393031428133241401624195671690574061419654342324638801248856147305207431992259611796250130992860241708340807605932320161268492288496255841312844061536738951487114256315111089745514203313820202931640957596464756010405845841566072044962867016515061920631004186422275908670900574606417856951911456055068251250406007519842261898059237118054444788072906395242548339221982707404473162376760846613033778706039803413197133493654622700563169937455508241780972810983291314403571877524768509857276937926433221599399876886660808368837838027643282775172273657572744784112294389733810861607423253291974813120197604178281965697475898164531258434135959862784130128185406283476649088690521047580882615823961985770122407044330583075869039319604603404973156583208672105913300903752823415539745394397715257455290510212310947321610753474825740775273986348298498340756937955646638621874569499279016572103701364433135817214311791398222983845847334440270964182851005072927748364550578634501100852987812389473928699540834346158807043959118985815145779177143619698728131459483783202081474982171858011389071228250905826817436220577475921417653715687725614904582904992461028630081535583308130101987675856234343538955409175623400844887526162643568648833519463720377293240094456246923254350400678027273837755376406726898636241037491410966718557050759098100246789880178271925953381282421954028302759408448955014676668389697996886241636313376393903373455801407636741877711055384225739499110186468219696581651485130494222369947714763069155468217682876200362777257723781365331611196811280792669481887201298643660768551639860534602297871557517947385246369446923087894265948217008051120322365496288169035739121368338393591756418733850510970271613915439590991598154654417336311656936031122249937969999226781732358023111862644575299135758175008199839236284615249881088960232244362173771618086357015468484058622329792853875623486556440536962622018963571028812361567512543338303270029097668650568557157505516727518899194129711337690149916181315171544007728650573189557450920330185304847113818315407324053319038462084036421763703911550639789000742853672196280903477974533320468368795868580237952218629120080742819551317948157624448298518461509704888027274721574688131594750409732115080498190455803416826949787141316063210686391511681774304792596709376". diff --git a/lib/erl_interface/src/connect/ei_connect.c b/lib/erl_interface/src/connect/ei_connect.c index be7a2a6b0e..7a304e6d4f 100644 --- a/lib/erl_interface/src/connect/ei_connect.c +++ b/lib/erl_interface/src/connect/ei_connect.c @@ -659,7 +659,7 @@ int ei_connect_xinit_ussi(ei_cnode* ec, const char *thishostname, return ERL_ERROR; } - ec->creation = creation; + ec->creation = creation & 0x3; /* 2 bits */ if (cookie) { if (strlen(cookie) >= sizeof(ec->ei_connect_cookie)) { @@ -698,7 +698,7 @@ int ei_connect_xinit_ussi(ei_cnode* ec, const char *thishostname, strcpy(ec->self.node,thisnodename); ec->self.num = 0; ec->self.serial = 0; - ec->self.creation = creation; + ec->self.creation = creation & 0x3; /* 2 bits */ ec->cbs = cbs; ec->setup_context = setup_context; diff --git a/lib/erl_interface/src/encode/encode_pid.c b/lib/erl_interface/src/encode/encode_pid.c index 0dfdb16372..d14746b40f 100644 --- a/lib/erl_interface/src/encode/encode_pid.c +++ b/lib/erl_interface/src/encode/encode_pid.c @@ -25,6 +25,7 @@ int ei_encode_pid(char *buf, int *index, const erlang_pid *p) { char* s = buf + *index; + const char tag = (p->creation > 3) ? ERL_NEW_PID_EXT : ERL_PID_EXT; ++(*index); /* skip ERL_PID_EXT */ if (ei_encode_atom_len_as(buf, index, p->node, strlen(p->node), @@ -32,17 +33,21 @@ int ei_encode_pid(char *buf, int *index, const erlang_pid *p) return -1; if (buf) { - put8(s, ERL_NEW_PID_EXT); + put8(s, tag); s = buf + *index; /* now the integers */ put32be(s,p->num & 0x7fff); /* 15 bits */ put32be(s,p->serial & 0x1fff); /* 13 bits */ - put32be(s, p->creation); /* 32 bits */ + if (tag == ERL_PID_EXT) { + put8(s,(p->creation & 0x03)); /* 2 bits */ + } else { + put32be(s, p->creation); /* 32 bits */ + } } - *index += 4 + 4 + 4; + *index += 4 + 4 + (tag == ERL_PID_EXT ? 1 : 4); return 0; } diff --git a/lib/erl_interface/src/encode/encode_port.c b/lib/erl_interface/src/encode/encode_port.c index 0fb4018db1..eb464380c0 100644 --- a/lib/erl_interface/src/encode/encode_port.c +++ b/lib/erl_interface/src/encode/encode_port.c @@ -25,6 +25,7 @@ int ei_encode_port(char *buf, int *index, const erlang_port *p) { char *s = buf + *index; + const char tag = p->creation > 3 ? ERL_NEW_PORT_EXT : ERL_PORT_EXT; ++(*index); /* skip ERL_PORT_EXT */ if (ei_encode_atom_len_as(buf, index, p->node, strlen(p->node), ERLANG_UTF8, @@ -32,15 +33,19 @@ int ei_encode_port(char *buf, int *index, const erlang_port *p) return -1; } if (buf) { - put8(s, ERL_NEW_PORT_EXT); + put8(s, tag); s = buf + *index; /* now the integers */ put32be(s,p->id & 0x0fffffff /* 28 bits */); - put32be(s, p->creation); + if (tag == ERL_PORT_EXT) { + put8(s,(p->creation & 0x03)); + } else { + put32be(s, p->creation); + } } - *index += 4 + 4; + *index += 4 + (tag == ERL_PORT_EXT ? 1 : 4); return 0; } diff --git a/lib/erl_interface/src/encode/encode_ref.c b/lib/erl_interface/src/encode/encode_ref.c index 8c2e0a25f7..5ccfc32c6d 100644 --- a/lib/erl_interface/src/encode/encode_ref.c +++ b/lib/erl_interface/src/encode/encode_ref.c @@ -24,6 +24,7 @@ int ei_encode_ref(char *buf, int *index, const erlang_ref *p) { + const char tag = (p->creation > 3) ? ERL_NEWER_REFERENCE_EXT : ERL_NEW_REFERENCE_EXT; char *s = buf + *index; int i; @@ -36,7 +37,7 @@ int ei_encode_ref(char *buf, int *index, const erlang_ref *p) /* Always encode as an extended reference; all participating parties are now expected to be able to decode extended references. */ if (buf) { - put8(s, ERL_NEWER_REFERENCE_EXT); + put8(s, tag); /* first, number of integers */ put16be(s, p->len); @@ -45,12 +46,15 @@ int ei_encode_ref(char *buf, int *index, const erlang_ref *p) s = buf + *index; /* now the integers */ - put32be(s, p->creation); + if (tag == ERL_NEW_REFERENCE_EXT) + put8(s,(p->creation & 0x03)); + else + put32be(s, p->creation); for (i = 0; i < p->len; i++) put32be(s,p->n[i]); } - *index += p->len*4 + 4; + *index += p->len*4 + (tag == ERL_NEW_REFERENCE_EXT ? 1 : 4); return 0; } diff --git a/lib/erl_interface/src/epmd/ei_epmd.h b/lib/erl_interface/src/epmd/ei_epmd.h index f72c354e32..ac153b6e66 100644 --- a/lib/erl_interface/src/epmd/ei_epmd.h +++ b/lib/erl_interface/src/epmd/ei_epmd.h @@ -25,8 +25,8 @@ #endif #ifndef EI_DIST_HIGH -#define EI_DIST_HIGH 6 /* OTP 22 and later */ -#define EI_DIST_LOW 5 /* OTP R4 - 21 */ +#define EI_DIST_HIGH 5 /* R4 and later */ +#define EI_DIST_LOW 1 /* R3 and earlier */ #endif #ifndef EPMD_PORT @@ -45,7 +45,6 @@ #ifndef EI_EPMD_ALIVE2_REQ #define EI_EPMD_ALIVE2_REQ 120 #define EI_EPMD_ALIVE2_RESP 121 -#define EI_EPMD_ALIVE2_X_RESP 118 #define EI_EPMD_PORT2_REQ 122 #define EI_EPMD_PORT2_RESP 119 #define EI_EPMD_STOP_REQ 's' diff --git a/lib/erl_interface/src/epmd/epmd_publish.c b/lib/erl_interface/src/epmd/epmd_publish.c index ef8a5d6b70..20b8e867e8 100644 --- a/lib/erl_interface/src/epmd/epmd_publish.c +++ b/lib/erl_interface/src/epmd/epmd_publish.c @@ -68,8 +68,7 @@ static int ei_epmd_r4_publish (int port, const char *alive, unsigned ms) int nlen = strlen(alive); int len = elen + nlen + 13; /* hard coded: be careful! */ int n; - int err, response, res; - unsigned creation; + int err, res, creation; ssize_t dlen; unsigned tmo = ms == 0 ? EI_SCLBK_INF_TMO : ms; @@ -125,10 +124,8 @@ static int ei_epmd_r4_publish (int port, const char *alive, unsigned ms) /* Don't close fd here! It keeps us registered with epmd */ s = buf; - response = get8(s); - if (response != EI_EPMD_ALIVE2_RESP && - response != EI_EPMD_ALIVE2_X_RESP) { - EI_TRACE_ERR1("ei_epmd_r4_publish","<- unknown (%d)",response); + if (((res=get8(s)) != EI_EPMD_ALIVE2_RESP)) { /* response */ + EI_TRACE_ERR1("ei_epmd_r4_publish","<- unknown (%d)",res); EI_TRACE_ERR0("ei_epmd_r4_publish","-> CLOSE"); ei_close__(fd); erl_errno = EIO; @@ -144,21 +141,18 @@ static int ei_epmd_r4_publish (int port, const char *alive, unsigned ms) return -1; } - if (response == EI_EPMD_ALIVE2_RESP) - creation = get16be(s); - else /* EI_EPMD_ALIVE2_X_RESP */ - creation = get32be(s); + creation = get16be(s); EI_TRACE_CONN2("ei_epmd_r4_publish", - " result=%d (ok) creation=%u",res,creation); + " result=%d (ok) creation=%d",res,creation); - /* - * Would be nice to somehow use the nice "unique" creation value - * received here from epmd instead of using the crappy one - * passed (already) to ei_connect_init. - */ + /* probably should save fd so we can close it later... */ + /* epmd_saveconn(OPEN,fd,alive); */ - /* return the descriptor */ + /* return the creation number, for no good reason */ + /* return creation;*/ + + /* no - return the descriptor */ return fd; } diff --git a/lib/erl_interface/src/prog/erl_call.c b/lib/erl_interface/src/prog/erl_call.c index dce2ecdec2..ab91157035 100644 --- a/lib/erl_interface/src/prog/erl_call.c +++ b/lib/erl_interface/src/prog/erl_call.c @@ -292,7 +292,8 @@ int erl_call(int argc, char **argv) flags.cookie = NULL; } - creation = time(NULL) + 1; /* "random" */ + /* FIXME decide how many bits etc or leave to connect_xinit? */ + creation = (time(NULL) % 3) + 1; /* "random" */ if (flags.hidden == NULL) { /* As default we are c17@gethostname */ diff --git a/lib/erl_interface/test/erl_eterm_SUITE.erl b/lib/erl_interface/test/erl_eterm_SUITE.erl index 4605293c74..77910a9fc7 100644 --- a/lib/erl_interface/test/erl_eterm_SUITE.erl +++ b/lib/erl_interface/test/erl_eterm_SUITE.erl @@ -73,10 +73,6 @@ -import(runner, [get_term/1]). --define(REFERENCE_EXT, $e). --define(NEW_REFERENCE_EXT, $r). --define(NEWER_REFERENCE_EXT, $Z). - %% This test suite controls the running of the C language functions %% in eterm_test.c and print_term.c. @@ -1030,11 +1026,9 @@ cnode_1(Config) when is_list(Config) -> check_ref(Ref) -> case bin_ext_type(Ref) of - ?REFERENCE_EXT -> + 101 -> ct:fail(oldref); - ?NEW_REFERENCE_EXT -> - ok; - ?NEWER_REFERENCE_EXT -> + 114 -> ok; Type -> ct:fail({type, Type}) diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java index 3abdf9535f..9cbd735751 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPid.java @@ -27,6 +27,7 @@ public class OtpErlangPid extends OtpErlangObject implements Comparable<Object> // don't change this! private static final long serialVersionUID = 1664394142301803659L; + private final int tag; private final String node; private final int id; private final int serial; @@ -44,6 +45,7 @@ public class OtpErlangPid extends OtpErlangObject implements Comparable<Object> public OtpErlangPid(final OtpLocalNode self) { final OtpErlangPid p = self.createPid(); + tag = p.tag; id = p.id; serial = p.serial; creation = p.creation; @@ -65,6 +67,7 @@ public class OtpErlangPid extends OtpErlangObject implements Comparable<Object> throws OtpErlangDecodeException { final OtpErlangPid p = buf.read_pid(); + tag = p.tag; node = p.node(); id = p.id(); serial = p.serial(); @@ -115,6 +118,7 @@ public class OtpErlangPid extends OtpErlangObject implements Comparable<Object> */ protected OtpErlangPid(final int tag, final String node, final int id, final int serial, final int creation) { + this.tag = tag; this.node = node; if (tag == OtpExternal.pidTag) { this.id = id & 0x7fff; // 15 bits @@ -129,7 +133,7 @@ public class OtpErlangPid extends OtpErlangObject implements Comparable<Object> } protected int tag() { - return OtpExternal.newPidTag; + return tag; } /** diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPort.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPort.java index c8648d7aa3..79b5d2736c 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPort.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangPort.java @@ -26,6 +26,7 @@ public class OtpErlangPort extends OtpErlangObject { // don't change this! private static final long serialVersionUID = 4037115468007644704L; + private final int tag; private final String node; private final int id; private final int creation; @@ -42,6 +43,7 @@ public class OtpErlangPort extends OtpErlangObject { private OtpErlangPort(final OtpSelf self) { final OtpErlangPort p = self.createPort(); + tag = p.tag; id = p.id; creation = p.creation; node = p.node; @@ -62,6 +64,7 @@ public class OtpErlangPort extends OtpErlangObject { throws OtpErlangDecodeException { final OtpErlangPort p = buf.read_port(); + tag = p.tag; node = p.node(); id = p.id(); creation = p.creation(); @@ -102,6 +105,7 @@ public class OtpErlangPort extends OtpErlangObject { */ public OtpErlangPort(final int tag, final String node, final int id, final int creation) { + this.tag = tag; this.node = node; if (tag == OtpExternal.portTag) { this.id = id & 0xfffffff; // 28 bits @@ -114,7 +118,7 @@ public class OtpErlangPort extends OtpErlangObject { } protected int tag() { - return OtpExternal.newPortTag; + return tag; } /** diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangRef.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangRef.java index 2bf8d9a56b..2165397013 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangRef.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangRef.java @@ -28,6 +28,7 @@ public class OtpErlangRef extends OtpErlangObject { // don't change this! private static final long serialVersionUID = -7022666480768586521L; + private final int tag; private final String node; private final int creation; @@ -48,6 +49,7 @@ public class OtpErlangRef extends OtpErlangObject { public OtpErlangRef(final OtpLocalNode self) { final OtpErlangRef r = self.createRef(); + tag = r.tag; ids = r.ids; creation = r.creation; node = r.node; @@ -68,6 +70,7 @@ public class OtpErlangRef extends OtpErlangObject { throws OtpErlangDecodeException { final OtpErlangRef r = buf.read_ref(); + tag = r.tag; node = r.node(); creation = r.creation(); @@ -87,6 +90,7 @@ public class OtpErlangRef extends OtpErlangObject { * another arbitrary number. */ public OtpErlangRef(final String node, final int id, final int creation) { + this.tag = OtpExternal.newRefTag; this.node = node; ids = new int[1]; ids[0] = id & 0x3ffff; // 18 bits @@ -134,6 +138,7 @@ public class OtpErlangRef extends OtpErlangObject { */ public OtpErlangRef(final int tag, final String node, final int[] ids, final int creation) { + this.tag = tag; this.node = node; // use at most 3 words @@ -157,7 +162,7 @@ public class OtpErlangRef extends OtpErlangObject { } protected int tag() { - return OtpExternal.newerRefTag; + return tag; } /** diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpOutputStream.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpOutputStream.java index a3b089c1da..187705a0b5 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpOutputStream.java +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpOutputStream.java @@ -713,7 +713,7 @@ public class OtpOutputStream extends ByteArrayOutputStream { */ public void write_pid(final String node, final int id, final int serial, final int creation) { - write1(OtpExternal.newPidTag); + write1(OtpExternal.pidTag); write_atom(node); write4BE(id & 0x7fff); // 15 bits write4BE(serial & 0x1fff); // 13 bits @@ -727,11 +727,20 @@ public class OtpOutputStream extends ByteArrayOutputStream { * the pid */ public void write_pid(OtpErlangPid pid) { - write1(OtpExternal.newPidTag); + write1(pid.tag()); write_atom(pid.node()); write4BE(pid.id()); write4BE(pid.serial()); - write4BE(pid.creation()); + switch (pid.tag()) { + case OtpExternal.pidTag: + write1(pid.creation()); + break; + case OtpExternal.newPidTag: + write4BE(pid.creation()); + break; + default: + throw new AssertionError("Invalid pid tag " + pid.tag()); + } } @@ -749,7 +758,7 @@ public class OtpOutputStream extends ByteArrayOutputStream { * be used. */ public void write_port(final String node, final int id, final int creation) { - write1(OtpExternal.newPortTag); + write1(OtpExternal.portTag); write_atom(node); write4BE(id & 0xfffffff); // 28 bits write1(creation & 0x3); // 2 bits @@ -762,10 +771,19 @@ public class OtpOutputStream extends ByteArrayOutputStream { * the port. */ public void write_port(OtpErlangPort port) { - write1(OtpExternal.newPortTag); + write1(port.tag()); write_atom(port.node()); write4BE(port.id()); - write4BE(port.creation()); + switch (port.tag()) { + case OtpExternal.portTag: + write1(port.creation()); + break; + case OtpExternal.newPortTag: + write4BE(port.creation()); + break; + default: + throw new AssertionError("Invalid port tag " + port.tag()); + } } /** @@ -811,7 +829,7 @@ public class OtpOutputStream extends ByteArrayOutputStream { arity = 3; // max 3 words in ref } - write1(OtpExternal.newerRefTag); + write1(OtpExternal.newRefTag); // how many id values write2BE(arity); @@ -839,12 +857,24 @@ public class OtpOutputStream extends ByteArrayOutputStream { int[] ids = ref.ids(); int arity = ids.length; - write1(OtpExternal.newerRefTag); + write1(ref.tag()); write2BE(arity); write_atom(ref.node()); - write4BE(ref.creation()); - for (int i = 0; i < arity; i++) { + switch (ref.tag()) { + case OtpExternal.newRefTag: + write1(ref.creation()); + write4BE(ids[0] & 0x3ffff); // first word gets truncated to 18 bits + break; + case OtpExternal.newerRefTag: + write4BE(ref.creation()); + write4BE(ids[0]); // full first word + break; + default: + throw new AssertionError("Invalid ref tag " + ref.tag()); + } + + for (int i = 1; i < arity; i++) { write4BE(ids[i]); } } diff --git a/lib/kernel/src/erl_epmd.erl b/lib/kernel/src/erl_epmd.erl index f31a1722ce..7a14e2635c 100644 --- a/lib/kernel/src/erl_epmd.erl +++ b/lib/kernel/src/erl_epmd.erl @@ -33,10 +33,10 @@ -define(erlang_daemon_port, 4369). -endif. -ifndef(epmd_dist_high). --define(epmd_dist_high, 6). +-define(epmd_dist_high, 4370). -endif. -ifndef(epmd_dist_low). --define(epmd_dist_low, 5). +-define(epmd_dist_low, 4370). -endif. %% External exports @@ -342,13 +342,6 @@ wait_for_reg_reply(Socket, SoFar) -> receive {tcp, Socket, Data0} -> case SoFar ++ Data0 of - [$v, Result, A, B, C, D] -> - case Result of - 0 -> - {alive, Socket, ?u32(A, B, C, D)}; - _ -> - {error, duplicate_name} - end; [$y, Result, A, B] -> case Result of 0 -> diff --git a/lib/kernel/test/erl_distribution_wb_SUITE.erl b/lib/kernel/test/erl_distribution_wb_SUITE.erl index f3db6705a2..8256444bdc 100644 --- a/lib/kernel/test/erl_distribution_wb_SUITE.erl +++ b/lib/kernel/test/erl_distribution_wb_SUITE.erl @@ -47,9 +47,6 @@ R end). --define(EPMD_DIST_HIGH, 6). --define(EPMD_DIST_LOW, 5). - -define(DFLAG_PUBLISHED,1). -define(DFLAG_ATOM_CACHE,2). -define(DFLAG_EXTENDED_REFERENCES,4). @@ -60,18 +57,15 @@ -define(DFLAG_NEW_FUN_TAGS,16#80). -define(DFLAG_EXTENDED_PIDS_PORTS,16#100). -define(DFLAG_UTF8_ATOMS, 16#10000). --define(DFLAG_BIG_CREATION, 16#40000). %% From R9 and forward extended references is compulsory %% From R10 and forward extended pids and ports are compulsory %% From R20 and forward UTF8 atoms are compulsory %% From R21 and forward NEW_FUN_TAGS is compulsory (no more tuple fallback {fun, ...}) -%% From R22 and forward BIG_CREATION is compulsory -define(COMPULSORY_DFLAGS, (?DFLAG_EXTENDED_REFERENCES bor ?DFLAG_EXTENDED_PIDS_PORTS bor ?DFLAG_UTF8_ATOMS bor - ?DFLAG_NEW_FUN_TAGS bor - ?DFLAG_BIG_CREATION)). + ?DFLAG_NEW_FUN_TAGS)). -define(PASS_THROUGH, $p). @@ -214,9 +208,9 @@ pending_up_md5(Node,OurName,Cookie) -> {ok, SocketA} = gen_tcp:connect(atom_to_list(NB),PortNo, [{active,false}, {packet,2}]), - send_name(SocketA,OurName, ?EPMD_DIST_HIGH), + send_name(SocketA,OurName,5), ok = recv_status(SocketA), - {hidden,Node,?EPMD_DIST_HIGH,HisChallengeA} = recv_challenge(SocketA), % See 1) + {hidden,Node,5,HisChallengeA} = recv_challenge(SocketA), % See 1) OurChallengeA = gen_challenge(), OurDigestA = gen_digest(HisChallengeA, Cookie), send_challenge_reply(SocketA, OurChallengeA, OurDigestA), @@ -230,11 +224,11 @@ pending_up_md5(Node,OurName,Cookie) -> {ok, SocketB} = gen_tcp:connect(atom_to_list(NB),PortNo, [{active,false}, {packet,2}]), - send_name(SocketB,OurName, ?EPMD_DIST_HIGH), + send_name(SocketB,OurName,5), alive = recv_status(SocketB), send_status(SocketB, true), gen_tcp:close(SocketA), - {hidden,Node,?EPMD_DIST_HIGH,HisChallengeB} = recv_challenge(SocketB), % See 1) + {hidden,Node,5,HisChallengeB} = recv_challenge(SocketB), % See 1) OurChallengeB = gen_challenge(), OurDigestB = gen_digest(HisChallengeB, Cookie), send_challenge_reply(SocketB, OurChallengeB, OurDigestB), @@ -260,7 +254,7 @@ simultaneous_md5(Node, OurName, Cookie) when OurName < Node -> Else -> exit(Else) end, - EpmdSocket = register_node(OurName, LSocket, ?EPMD_DIST_LOW, ?EPMD_DIST_HIGH), + EpmdSocket = register(OurName, LSocket, 1, 5), {NA, NB} = split(Node), rpc:cast(Node, net_adm, ping, [OurName]), receive after 1000 -> ok end, @@ -268,7 +262,7 @@ simultaneous_md5(Node, OurName, Cookie) when OurName < Node -> {ok, SocketA} = gen_tcp:connect(atom_to_list(NB),PortNo, [{active,false}, {packet,2}]), - send_name(SocketA,OurName, ?EPMD_DIST_HIGH), + send_name(SocketA,OurName,5), %% We are still not marked up on the other side, as our first message %% is not sent. SocketB = case gen_tcp:accept(LSocket) of @@ -281,11 +275,11 @@ simultaneous_md5(Node, OurName, Cookie) when OurName < Node -> %% Now we are expected to close A gen_tcp:close(SocketA), %% But still Socket B will continue - {normal,Node,?EPMD_DIST_HIGH} = recv_name(SocketB), % See 1) + {normal,Node,5} = recv_name(SocketB), % See 1) send_status(SocketB, ok_simultaneous), MyChallengeB = gen_challenge(), - send_challenge(SocketB, OurName, MyChallengeB, ?EPMD_DIST_HIGH), - {ok,HisChallengeB} = recv_challenge_reply(SocketB, MyChallengeB, Cookie), + send_challenge(SocketB, OurName, MyChallengeB,5), + HisChallengeB = recv_challenge_reply(SocketB, MyChallengeB, Cookie), DigestB = gen_digest(HisChallengeB,Cookie), send_challenge_ack(SocketB, DigestB), inet:setopts(SocketB, [{active, false}, @@ -307,8 +301,7 @@ simultaneous_md5(Node, OurName, Cookie) when OurName > Node -> Else -> exit(Else) end, - EpmdSocket = register_node(OurName, LSocket, - ?EPMD_DIST_LOW, ?EPMD_DIST_HIGH), + EpmdSocket = register(OurName, LSocket, 1, 5), {NA, NB} = split(Node), rpc:cast(Node, net_adm, ping, [OurName]), receive after 1000 -> ok end, @@ -322,16 +315,16 @@ simultaneous_md5(Node, OurName, Cookie) when OurName > Node -> Else2 -> exit(Else2) end, - send_name(SocketA,OurName, ?EPMD_DIST_HIGH), + send_name(SocketA,OurName,5), ok_simultaneous = recv_status(SocketA), %% Socket B should die during this case catch begin - {normal,Node,?EPMD_DIST_HIGH} = recv_name(SocketB), % See 1) + {normal,Node,5} = recv_name(SocketB), % See 1) send_status(SocketB, ok_simultaneous), MyChallengeB = gen_challenge(), send_challenge(SocketB, OurName, MyChallengeB, 5), - {ok,HisChallengeB} = recv_challenge_reply( + HisChallengeB = recv_challenge_reply( SocketB, MyChallengeB, Cookie), @@ -353,7 +346,7 @@ simultaneous_md5(Node, OurName, Cookie) when OurName > Node -> end, gen_tcp:close(SocketB), %% But still Socket A will continue - {hidden,Node,?EPMD_DIST_HIGH,HisChallengeA} = recv_challenge(SocketA), % See 1) + {hidden,Node,5,HisChallengeA} = recv_challenge(SocketA), % See 1) OurChallengeA = gen_challenge(), OurDigestA = gen_digest(HisChallengeA, Cookie), send_challenge_reply(SocketA, OurChallengeA, OurDigestA), @@ -379,7 +372,7 @@ missing_compulsory_dflags(Config) when is_list(Config) -> [{active,false}, {packet,2}]), BadNode = list_to_atom(atom_to_list(Name2)++"@"++atom_to_list(NB)), - send_name(SocketA,BadNode, ?EPMD_DIST_HIGH, 0), + send_name(SocketA,BadNode,5,0), not_allowed = recv_status(SocketA), gen_tcp:close(SocketA), stop_node(Node), @@ -523,16 +516,16 @@ send_challenge_reply(Socket, Challenge, Digest) -> recv_challenge_reply(Socket, ChallengeA, Cookie) -> case gen_tcp:recv(Socket, 0) of - {ok,[$r,CB3,CB2,CB1,CB0 | SumB]=Data} when length(SumB) == 16 -> + {ok,[$r,CB3,CB2,CB1,CB0 | SumB]} when length(SumB) == 16 -> SumA = gen_digest(ChallengeA, Cookie), ChallengeB = ?u32(CB3,CB2,CB1,CB0), if SumB == SumA -> - {ok,ChallengeB}; + ChallengeB; true -> - {error,Data} + ?shutdown(bad_challenge_reply) end; - Err -> - {error,Err} + _ -> + ?shutdown(no_node) end. send_challenge_ack(Socket, Digest) -> @@ -627,13 +620,6 @@ wait_for_reg_reply(Socket, SoFar) -> receive {tcp, Socket, Data0} -> case SoFar ++ Data0 of - [$v, Result, A, B, C, D] -> - case Result of - 0 -> - {alive, Socket, ?u32(A, B, C, D)}; - _ -> - {error, duplicate_name} - end; [$y, Result, A, B] -> case Result of 0 -> @@ -654,7 +640,7 @@ wait_for_reg_reply(Socket, SoFar) -> end. -register_node(NodeName, ListenSocket, VLow, VHigh) -> +register(NodeName, ListenSocket, VLow, VHigh) -> {ok,{_,TcpPort}} = inet:sockname(ListenSocket), case do_register_node(NodeName, TcpPort, VLow, VHigh) of {alive, Socket, _Creation} -> |
