diff options
Diffstat (limited to 'erts/emulator/drivers/common/inet_drv.c')
| -rw-r--r-- | erts/emulator/drivers/common/inet_drv.c | 1802 |
1 files changed, 1334 insertions, 468 deletions
diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c index 301ce2d0e2..5ce0e1de9e 100644 --- a/erts/emulator/drivers/common/inet_drv.c +++ b/erts/emulator/drivers/common/inet_drv.c @@ -1,18 +1,19 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1997-2013. All Rights Reserved. + * Copyright Ericsson AB 1997-2016. All Rights Reserved. * - * The contents of this file are subject to the Erlang Public License, - * Version 1.1, (the "License"); you may not use this file except in - * compliance with the License. You should have received a copy of the - * Erlang Public License along with this software. If not, it can be - * retrieved online at http://www.erlang.org/. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at * - * Software distributed under the License is distributed on an "AS IS" - * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - * the License for the specific language governing rights and limitations - * under the License. + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. * * %CopyrightEnd% */ @@ -33,6 +34,7 @@ #include <stdio.h> #include <stdlib.h> +#include <stddef.h> #include <ctype.h> #include <sys/types.h> #include <errno.h> @@ -57,6 +59,9 @@ #ifdef HAVE_NETPACKET_PACKET_H #include <netpacket/packet.h> #endif +#ifdef HAVE_SYS_UN_H +#include <sys/un.h> +#endif /* All platforms fail on malloc errors. */ #define FATAL_MALLOC @@ -86,6 +91,13 @@ #endif typedef unsigned long long llu_t; +#ifndef INT16_MIN +#define INT16_MIN (-32768) +#endif +#ifndef INT16_MAX +#define INT16_MAX (32767) +#endif + #ifdef __WIN32__ #define STRNCASECMP strncasecmp @@ -189,6 +201,7 @@ typedef unsigned long long llu_t; #define HAVE_MULTICAST_SUPPORT +#define HAVE_UDP #define ERRNO_BLOCK WSAEWOULDBLOCK @@ -256,14 +269,13 @@ static BOOL (WINAPI *fpSetHandleInformation)(HANDLE,DWORD,DWORD); #define sock_htonl(x) htonl((x)) #define sock_send(s,buf,len,flag) send((s),(buf),(len),(flag)) #define sock_sendv(s, vec, size, np, flag) \ - WSASend((s),(WSABUF*)(vec),\ - (size),(np),(flag),NULL,NULL) + WSASend((s),(WSABUF*)(vec),(size),(np),(flag),NULL,NULL) #define sock_recv(s,buf,len,flag) recv((s),(buf),(len),(flag)) #define sock_recvfrom(s,buf,blen,flag,addr,alen) \ - recvfrom((s),(buf),(blen),(flag),(addr),(alen)) + recvfrom((s),(buf),(blen),(flag),(addr),(alen)) #define sock_sendto(s,buf,blen,flag,addr,alen) \ - sendto((s),(buf),(blen),(flag),(addr),(alen)) + sendto((s),(buf),(blen),(flag),(addr),(alen)) #define sock_hostname(buf, len) gethostname((buf), (len)) #define sock_getservbyname(name,proto) getservbyname((name),(proto)) @@ -282,7 +294,11 @@ static BOOL (WINAPI *fpSetHandleInformation)(HANDLE,DWORD,DWORD); static unsigned long zero_value = 0; static unsigned long one_value = 1; -#else +#define TCP_SHUT_WR SD_SEND +#define TCP_SHUT_RD SD_RECEIVE +#define TCP_SHUT_RDWR SD_BOTH + +#else /* !__WIN32__ */ #include <sys/time.h> #ifdef NETDB_H_NEEDS_IN_H @@ -315,9 +331,19 @@ static unsigned long one_value = 1; #include <net/if.h> +#ifdef HAVE_SCHED_H +#include <sched.h> +#endif + +#ifdef HAVE_SETNS_H +#include <setns.h> +#endif + +#define HAVE_UDP + /* SCTP support -- currently for UNIX platforms only: */ #undef HAVE_SCTP -#if (!defined(__WIN32__) && defined(HAVE_SCTP_H)) +#if defined(HAVE_SCTP_H) #include <netinet/sctp.h> @@ -409,16 +435,47 @@ static unsigned long one_value = 1; # define sctp_adaptation_layer_event sctp_adaption_layer_event #endif -#ifdef __GNUC__ +#if defined(__GNUC__) && defined(HAVE_SCTP_BINDX) static typeof(sctp_bindx) *p_sctp_bindx = NULL; +#else +static int (*p_sctp_bindx) + (int sd, struct sockaddr *addrs, int addrcnt, int flags) = NULL; +#endif + +#if defined(__GNUC__) && defined(HAVE_SCTP_PEELOFF) static typeof(sctp_peeloff) *p_sctp_peeloff = NULL; #else -static int (*p_sctp_bindx)(int sd, struct sockaddr *addrs, - int addrcnt, int flags) = NULL; -static int (*p_sctp_peeloff)(int sd, sctp_assoc_t assoc_id) = NULL; +static int (*p_sctp_peeloff) + (int sd, sctp_assoc_t assoc_id) = NULL; +#endif + +#if defined(__GNUC__) && defined(HAVE_SCTP_GETLADDRS) +static typeof(sctp_getladdrs) *p_sctp_getladdrs = NULL; +#else +static int (*p_sctp_getladdrs) + (int sd, sctp_assoc_t assoc_id, struct sockaddr **ss) = NULL; #endif -#endif /* SCTP supported */ +#if defined(__GNUC__) && defined(HAVE_SCTP_FREELADDRS) +static typeof(sctp_freeladdrs) *p_sctp_freeladdrs = NULL; +#else +static void (*p_sctp_freeladdrs)(struct sockaddr *addrs) = NULL; +#endif + +#if defined(__GNUC__) && defined(HAVE_SCTP_GETPADDRS) +static typeof(sctp_getpaddrs) *p_sctp_getpaddrs = NULL; +#else +static int (*p_sctp_getpaddrs) + (int sd, sctp_assoc_t assoc_id, struct sockaddr **ss) = NULL; +#endif + +#if defined(__GNUC__) && defined(HAVE_SCTP_FREEPADDRS) +static typeof(sctp_freepaddrs) *p_sctp_freepaddrs = NULL; +#else +static void (*p_sctp_freepaddrs)(struct sockaddr *addrs) = NULL; +#endif + +#endif /* #if defined(HAVE_SCTP_H) */ #ifndef WANT_NONBLOCKING #define WANT_NONBLOCKING @@ -506,18 +563,21 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n) (d)->event_mask = (onoff) ? \ ((d)->event_mask | (flags)) : \ ((d)->event_mask & ~(flags)); \ - DEBUGF(("sock_select(%ld): flags=%02X, onoff=%d, event_mask=%02lX\r\n", \ - (long) (d)->port, (flags), (onoff), (unsigned long) (d)->event_mask)); \ + DEBUGF(("(%s / %d) sock_select(%ld): flags=%02X, onoff=%d, event_mask=%02lX\r\n", \ + __FILE__, __LINE__, (long) (d)->port, (flags), (onoff), (unsigned long) (d)->event_mask)); \ inet_driver_select((d)->port, (ErlDrvEvent)(long)(d)->event, (flags), (onoff)); \ } while(0) +#define TCP_SHUT_WR SHUT_WR +#define TCP_SHUT_RD SHUT_RD +#define TCP_SHUT_RDWR SHUT_RDWR -#endif /* __WIN32__ */ +#endif /* !__WIN32__ */ #ifdef HAVE_SOCKLEN_T # define SOCKLEN_T socklen_t #else -# define SOCKLEN_T int +# define SOCKLEN_T size_t #endif #include "packet_parser.h" @@ -531,6 +591,26 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n) (((unsigned char*) (s))[1] << 8) | \ (((unsigned char*) (s))[0])) +#ifdef HAVE_SYS_UN_H + +/* strnlen doesn't exist everywhere */ +static size_t my_strnlen(const char *s, size_t maxlen) +{ + size_t i = 0; + while (i < maxlen && s[i] != '\0') + i++; + return i; +} + +/* Check that some character in the buffer != '\0' */ +static int is_nonzero(const char *s, size_t n) +{ + size_t i; + for (i = 0; i < n; i++) if (s[i] != '\0') return !0; + return 0; +} + +#endif #ifdef VALGRIND # include <valgrind/memcheck.h> @@ -551,10 +631,13 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n) */ /* general address encode/decode tag */ +#define INET_AF_UNSPEC 0 #define INET_AF_INET 1 #define INET_AF_INET6 2 #define INET_AF_ANY 3 /* INADDR_ANY or IN6ADDR_ANY_INIT */ #define INET_AF_LOOPBACK 4 /* INADDR_LOOPBACK or IN6ADDR_LOOPBACK_INIT */ +#define INET_AF_LOCAL 5 +#define INET_AF_UNDEFINED 6 /* Unknown */ /* open and INET_REQ_GETTYPE enumeration */ #define INET_TYPE_STREAM 1 @@ -573,10 +656,11 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n) #define INET_PASSIVE 0 /* false */ #define INET_ACTIVE 1 /* true */ #define INET_ONCE 2 /* true; active once then passive */ +#define INET_MULTI 3 /* true; active N then passive */ /* INET_REQ_GETSTATUS enumeration */ #define INET_F_OPEN 0x0001 -#define INET_F_BOUND 0x0002 +/* INET_F_BOUND removed - renumber when there comes a bigger rewrite */ #define INET_F_ACTIVE 0x0004 #define INET_F_LISTEN 0x0008 #define INET_F_CON 0x0010 @@ -585,7 +669,7 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n) #define INET_F_BUSY 0x0080 #define INET_F_MULTI_CLIENT 0x0100 /* Multiple clients for one descriptor, i.e. multi-accept */ -/* One numberspace for *_REC_* so if an e.g UDP request is issued +/* One numberspace for *_REQ_* so if an e.g UDP request is issued ** for a TCP socket, the driver can protest. */ #define INET_REQ_OPEN 1 @@ -616,6 +700,8 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n) #define INET_REQ_ACCEPT 26 #define INET_REQ_LISTEN 27 #define INET_REQ_IGNOREFD 28 +#define INET_REQ_GETLADDRS 29 +#define INET_REQ_GETPADDRS 30 /* TCP requests */ /* #define TCP_REQ_ACCEPT 40 MOVED */ @@ -637,6 +723,14 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n) #define TCP_ADDF_CLOSE_SENT 2 /* Close sent (active mode only) */ #define TCP_ADDF_DELAYED_CLOSE_RECV 4 /* If receive fails, report {error,closed} (passive mode) */ #define TCP_ADDF_DELAYED_CLOSE_SEND 8 /* If send fails, report {error,closed} (passive mode) */ +#define TCP_ADDF_PENDING_SHUT_WR 16 /* Call shutdown(sock, SHUT_WR) when queue empties */ +#define TCP_ADDF_PENDING_SHUT_RDWR 32 /* Call shutdown(sock, SHUT_RDWR) when queue empties */ +#define TCP_ADDF_PENDING_SHUTDOWN \ + (TCP_ADDF_PENDING_SHUT_WR | TCP_ADDF_PENDING_SHUT_RDWR) +#define TCP_ADDF_SHOW_ECONNRESET 64 /* Tell user about incoming RST */ +#define TCP_ADDF_DELAYED_ECONNRESET 128 /* An ECONNRESET error occured on send or shutdown */ +#define TCP_ADDF_SHUTDOWN_WR_DONE 256 /* A shutdown(sock, SHUT_WR) or SHUT_RDWR was made */ +#define TCP_ADDF_LINGER_ZERO 512 /* Discard driver queue on port close */ /* *_REQ_* replies */ #define INET_REP_ERROR 0 @@ -680,6 +774,9 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n) #define INET_LOPT_TCP_SEND_TIMEOUT_CLOSE 35 /* auto-close on send timeout or not */ #define INET_LOPT_MSGQ_HIWTRMRK 36 /* set local msgq high watermark */ #define INET_LOPT_MSGQ_LOWTRMRK 37 /* set local msgq low watermark */ +#define INET_LOPT_NETNS 38 /* Network namespace pathname */ +#define INET_LOPT_TCP_SHOW_ECONNRESET 39 /* tell user about incoming RST */ +#define INET_LOPT_LINE_DELIM 40 /* Line delimiting char */ /* SCTP options: a separate range, from 100: */ #define SCTP_OPT_RTOINFO 100 #define SCTP_OPT_ASSOCINFO 101 @@ -761,19 +858,15 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n) #define INET_STATE_CLOSED (0) #define INET_STATE_OPEN (INET_F_OPEN) -#define INET_STATE_BOUND (INET_STATE_OPEN | INET_F_BOUND) -#define INET_STATE_CONNECTED (INET_STATE_BOUND | INET_F_ACTIVE) -#define INET_STATE_LISTENING (INET_STATE_BOUND | INET_F_LISTEN) -#define INET_STATE_CONNECTING (INET_STATE_BOUND | INET_F_CON) +#define INET_STATE_CONNECTED (INET_STATE_OPEN | INET_F_ACTIVE) +#define INET_STATE_LISTENING (INET_STATE_OPEN | INET_F_LISTEN) +#define INET_STATE_CONNECTING (INET_STATE_OPEN | INET_F_CON) #define INET_STATE_ACCEPTING (INET_STATE_LISTENING | INET_F_ACC) #define INET_STATE_MULTI_ACCEPTING (INET_STATE_ACCEPTING | INET_F_MULTI_CLIENT) #define IS_OPEN(d) \ (((d)->state & INET_F_OPEN) == INET_F_OPEN) -#define IS_BOUND(d) \ - (((d)->state & INET_F_BOUND) == INET_F_BOUND) - #define IS_CONNECTED(d) \ (((d)->state & INET_STATE_CONNECTED) == INET_STATE_CONNECTED) @@ -804,9 +897,10 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n) #define INET_IFNAMSIZ 16 /* INET Ignore states */ -#define INET_IGNORE_NONE 0 -#define INET_IGNORE_READ 1 -#define INET_IGNORE_WRITE 1 << 1 +#define INET_IGNORE_NONE 0 +#define INET_IGNORE_READ (1 << 0) +#define INET_IGNORE_WRITE (1 << 1) +#define INET_IGNORE_PASSIVE (1 << 2) /* Max length of Erlang Term Buffer (for outputting structured terms): */ #ifdef HAVE_SCTP @@ -825,23 +919,39 @@ typedef union { #ifdef HAVE_IN6 struct sockaddr_in6 sai6; #endif +#ifdef HAVE_SYS_UN_H + struct sockaddr_un sal; +#endif } inet_address; -/* for AF_INET & AF_INET6 */ -#define inet_address_port(x) ((x)->sai.sin_port) +#define inet_address_port(x) \ + ((((x)->sai.sin_family == AF_INET) || \ + ((x)->sai.sin_family == AF_INET6)) ? \ + ((x)->sai.sin_port) : -1) + +#ifdef HAVE_SYS_UN_H +#define localaddrlen(data) \ + ((((unsigned char*)(data))[0] == INET_AF_LOCAL) ? \ + (1 + 1 + ((unsigned char*)(data))[1]) : 1) +#else +#define localaddrlen(data) (1) +#endif #if defined(HAVE_IN6) && defined(AF_INET6) -#define addrlen(family) \ - ((family == AF_INET) ? sizeof(struct in_addr) : \ - ((family == AF_INET6) ? sizeof(struct in6_addr) : 0)) +#define addrlen(data) \ + ((((unsigned char*)(data))[0] == INET_AF_INET) ? \ + (1 + 2 + 4) : \ + ((((unsigned char*)(data))[0] == INET_AF_INET6) ? \ + (1 + 2 + 16) : localaddrlen(data))) #else -#define addrlen(family) \ - ((family == AF_INET) ? sizeof(struct in_addr) : 0) +#define addrlen(data) \ + ((((unsigned char*)(data))[0] == INET_AF_INET) ? \ + (1 + 2 + 4) : localaddrlen(data)) #endif typedef struct _multi_timer_data { - ErlDrvNowData when; + ErlDrvTime when; ErlDrvTermData caller; void (*timeout_function)(ErlDrvData drv_data, ErlDrvTermData caller); struct _multi_timer_data *next; @@ -916,6 +1026,7 @@ typedef struct { inet_async_op op_queue[INET_MAX_ASYNC]; /* call queue */ int active; /* 0 = passive, 1 = active, 2 = active once */ + Sint16 active_count; /* counter for {active,N} */ int stype; /* socket type: SOCK_STREAM/SOCK_DGRAM/SOCK_SEQPACKET */ int sprotocol; /* socket protocol: @@ -927,8 +1038,10 @@ typedef struct { inet_address peer_addr; /* fake peer address */ inet_address name_addr; /* fake local address */ - inet_address* peer_ptr; /* fake peername or NULL */ - inet_address* name_ptr; /* fake sockname or NULL */ + inet_address* peer_ptr; /* fake peername or NULL */ + inet_address* name_ptr; /* fake sockname or NULL */ + SOCKLEN_T peer_addr_len; /* fake peername size */ + SOCKLEN_T name_addr_len; /* fake sockname size */ int bufsz; /* minimum buffer constraint */ unsigned int hsz; /* the list header size, -1 is large !!! */ @@ -947,6 +1060,7 @@ typedef struct { #else Uint32 send_oct[2]; /* number of octets sent, 64 bits */ #endif + char delimiter; /* Line delimiting character (def: '\n') */ unsigned long send_cnt; /* number of packets sent */ unsigned long send_max; /* maximum packet send */ double send_avg; /* average packet size sent */ @@ -955,6 +1069,10 @@ typedef struct { int is_ignored; /* if a fd is ignored by the inet_drv. This flag should be set to true when the fd is used outside of inet_drv. */ +#ifdef HAVE_SETNS + char *netns; /* Socket network namespace name + as full file path */ +#endif } inet_descriptor; @@ -978,12 +1096,13 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData, unsigned int, static void tcp_inet_timeout(ErlDrvData); static void tcp_inet_process_exit(ErlDrvData, ErlDrvMonitor *); static void inet_stop_select(ErlDrvEvent, void*); +static void inet_emergency_close(ErlDrvData); #ifdef __WIN32__ static void tcp_inet_event(ErlDrvData, ErlDrvEvent); static void find_dynamic_functions(void); #endif -static struct erl_drv_entry tcp_inet_driver_entry = +static struct erl_drv_entry tcp_inet_driver_entry = { tcp_inet_init, /* inet_init will add this driver !! */ tcp_inet_start, @@ -1012,11 +1131,13 @@ static struct erl_drv_entry tcp_inet_driver_entry = ERL_DRV_FLAG_USE_PORT_LOCKING|ERL_DRV_FLAG_SOFT_BUSY, NULL, tcp_inet_process_exit, - inet_stop_select + inet_stop_select, + inet_emergency_close }; +#ifdef HAVE_UDP static int packet_inet_init(void); static void packet_inet_stop(ErlDrvData); static void packet_inet_command(ErlDrvData, char*, ErlDrvSizeT); @@ -1064,8 +1185,10 @@ static struct erl_drv_entry udp_inet_driver_entry = ERL_DRV_FLAG_USE_PORT_LOCKING, NULL, NULL, - inet_stop_select + inet_stop_select, + inet_emergency_close }; +#endif #ifdef HAVE_SCTP static struct erl_drv_entry sctp_inet_driver_entry = @@ -1097,7 +1220,8 @@ static struct erl_drv_entry sctp_inet_driver_entry = ERL_DRV_FLAG_USE_PORT_LOCKING, NULL, NULL, /* process_exit */ - inet_stop_select + inet_stop_select, + inet_emergency_close }; #endif @@ -1126,9 +1250,12 @@ static int tcp_sendv(tcp_descriptor* desc, ErlIOVec* ev); static int tcp_recv(tcp_descriptor* desc, int request_len); static int tcp_deliver(tcp_descriptor* desc, int len); +static int tcp_shutdown_error(tcp_descriptor* desc, int err); + static int tcp_inet_output(tcp_descriptor* desc, HANDLE event); static int tcp_inet_input(tcp_descriptor* desc, HANDLE event); +#ifdef HAVE_UDP typedef struct { inet_descriptor inet; /* common data structure (DON'T MOVE) */ int read_packets; /* Number of packets to read per invocation */ @@ -1140,29 +1267,51 @@ typedef struct { static int packet_inet_input(udp_descriptor* udesc, HANDLE event); static int packet_inet_output(udp_descriptor* udesc, HANDLE event); +#endif -/* convert descriptor poiner to inet_descriptor pointer */ +/* convert descriptor pointer to inet_descriptor pointer */ #define INETP(d) (&(d)->inet) static int async_ref = 0; /* async reference id generator */ #define NEW_ASYNC_ID() ((async_ref++) & 0xffff) +/* check for transition from active to passive */ +#define INET_CHECK_ACTIVE_TO_PASSIVE(inet) \ + do { \ + if ((inet)->active == INET_ONCE) \ + (inet)->active = INET_PASSIVE; \ + else if ((inet)->active == INET_MULTI && --((inet)->active_count) == 0) { \ + (inet)->active = INET_PASSIVE; \ + packet_passive_message(inet); \ + } \ + } while (0) static ErlDrvTermData am_ok; +static ErlDrvTermData am_undefined; +static ErlDrvTermData am_unspec; static ErlDrvTermData am_tcp; -static ErlDrvTermData am_udp; static ErlDrvTermData am_error; +static ErlDrvTermData am_einval; static ErlDrvTermData am_inet_async; static ErlDrvTermData am_inet_reply; static ErlDrvTermData am_timeout; static ErlDrvTermData am_closed; +static ErlDrvTermData am_tcp_passive; static ErlDrvTermData am_tcp_closed; static ErlDrvTermData am_tcp_error; -static ErlDrvTermData am_udp_error; static ErlDrvTermData am_empty_out_q; static ErlDrvTermData am_ssl_tls; +#ifdef HAVE_UDP +static ErlDrvTermData am_udp; +static ErlDrvTermData am_udp_passive; +static ErlDrvTermData am_udp_error; +#endif +#ifdef HAVE_SYS_UN_H +static ErlDrvTermData am_local; +#endif #ifdef HAVE_SCTP static ErlDrvTermData am_sctp; +static ErlDrvTermData am_sctp_passive; static ErlDrvTermData am_sctp_error; static ErlDrvTermData am_true; static ErlDrvTermData am_false; @@ -1172,6 +1321,7 @@ static ErlDrvTermData am_list; static ErlDrvTermData am_binary; static ErlDrvTermData am_active; static ErlDrvTermData am_once; +static ErlDrvTermData am_multi; static ErlDrvTermData am_buffer; static ErlDrvTermData am_linger; static ErlDrvTermData am_recbuf; @@ -1181,9 +1331,13 @@ static ErlDrvTermData am_dontroute; static ErlDrvTermData am_priority; static ErlDrvTermData am_tos; static ErlDrvTermData am_ipv6_v6only; +static ErlDrvTermData am_netns; #endif -/* speical errors for bad ports and sequences */ +static char str_eafnosupport[] = "eafnosupport"; +static char str_einval[] = "einval"; + +/* special errors for bad ports and sequences */ #define EXBADPORT "exbadport" #define EXBADSEQ "exbadseq" @@ -1240,7 +1394,7 @@ static const struct in6_addr in6addr_loopback = #endif /* HAVE_IN6 */ /* XXX: is this a driver interface function ??? */ -void erl_exit(int n, char*, ...); +void erts_exit(int n, char*, ...); /* * Malloc wrapper, @@ -1253,7 +1407,7 @@ void erl_exit(int n, char*, ...); static void *alloc_wrapper(ErlDrvSizeT size){ void *ret = driver_alloc(size); if(ret == NULL) - erl_exit(1,"Out of virtual memory in malloc (%s)", __FILE__); + erts_exit(ERTS_ERROR_EXIT,"Out of virtual memory in malloc (%s)", __FILE__); return ret; } #define ALLOC(X) alloc_wrapper(X) @@ -1261,7 +1415,7 @@ static void *alloc_wrapper(ErlDrvSizeT size){ static void *realloc_wrapper(void *current, ErlDrvSizeT size){ void *ret = driver_realloc(current,size); if(ret == NULL) - erl_exit(1,"Out of virtual memory in realloc (%s)", __FILE__); + erts_exit(ERTS_ERROR_EXIT,"Out of virtual memory in realloc (%s)", __FILE__); return ret; } #define REALLOC(X,Y) realloc_wrapper(X,Y) @@ -1365,51 +1519,82 @@ static void *realloc_wrapper(void *current, ErlDrvSizeT size){ # define SCTP_ANC_BUFF_SIZE INET_DEF_BUFFER/2 /* XXX: not very good... */ #endif -static int load_ip_port(ErlDrvTermData* spec, int i, char* buf) -{ - spec[i++] = ERL_DRV_INT; - spec[i++] = (ErlDrvTermData) get_int16(buf); - return i; -} - -static int load_ip_address(ErlDrvTermData* spec, int i, int family, char* buf) +#ifdef HAVE_UDP +static int load_address(ErlDrvTermData* spec, int i, char* buf) { int n; - if (family == AF_INET) { - for (n = 0; n < 4; n++) { + switch (*buf++) { /* Family */ + case INET_AF_INET: { + for (n = 2; n < 2+4; n++) { spec[i++] = ERL_DRV_INT; spec[i++] = (ErlDrvTermData) ((unsigned char)buf[n]); } spec[i++] = ERL_DRV_TUPLE; spec[i++] = 4; + spec[i++] = ERL_DRV_INT; + spec[i++] = (ErlDrvTermData) get_int16(buf); + break; } #if defined(HAVE_IN6) && defined(AF_INET6) - else if (family == AF_INET6) { - for (n = 0; n < 16; n += 2) { + case INET_AF_INET6: { + for (n = 2; n < 2+16; n += 2) { spec[i++] = ERL_DRV_INT; spec[i++] = (ErlDrvTermData) get_int16(buf+n); } spec[i++] = ERL_DRV_TUPLE; spec[i++] = 8; + spec[i++] = ERL_DRV_INT; + spec[i++] = (ErlDrvTermData) get_int16(buf); + break; } #endif - else { +#ifdef HAVE_SYS_UN_H + case INET_AF_LOCAL: { + int len = *(unsigned char*)buf++; + i = LOAD_ATOM(spec, i, am_local); + i = LOAD_BUF2BINARY(spec, i, buf, len); spec[i++] = ERL_DRV_TUPLE; + spec[i++] = 2; + spec[i++] = ERL_DRV_INT; spec[i++] = 0; + break; + } +#endif + case INET_AF_UNSPEC: { + i = LOAD_ATOM(spec, i, am_unspec); + i = LOAD_BUF2BINARY(spec, i, buf, 0); + spec[i++] = ERL_DRV_TUPLE; + spec[i++] = 2; + spec[i++] = ERL_DRV_INT; + spec[i++] = 0; + break; + } + default: { /* INET_AF_UNDEFINED */ + i = LOAD_ATOM(spec, i, am_undefined); + i = LOAD_BUF2BINARY(spec, i, buf, 0); + spec[i++] = ERL_DRV_TUPLE; + spec[i++] = 2; + spec[i++] = ERL_DRV_INT; + spec[i++] = 0; + break; + } } return i; -} + } +#endif #ifdef HAVE_SCTP /* For SCTP, we often need to return {IP, Port} tuples: */ -static int inet_get_address - (int family, char* dst, inet_address* src, unsigned int* len); +static int inet_get_address(char* dst, inet_address* src, unsigned int* len); -#define LOAD_IP_AND_PORT_CNT \ +/* Max of {{int()*8},int()} | {{int()*4},int()} | + * {{'local',binary()},int()} + */ +#define LOAD_INET_GET_ADDRESS_CNT \ (8*LOAD_INT_CNT + LOAD_TUPLE_CNT + LOAD_INT_CNT + LOAD_TUPLE_CNT) -static int load_ip_and_port +static int load_inet_get_address (ErlDrvTermData* spec, int i, inet_descriptor* desc, struct sockaddr_storage* addr) { @@ -1419,17 +1604,15 @@ static int load_ip_and_port unsigned int len = sizeof(struct sockaddr_storage); unsigned int alen = len; char abuf [len]; - int res = - inet_get_address(desc->sfamily, abuf, (inet_address*) addr, &alen); - ASSERT(res==0); - res = 0; + int res = inet_get_address(abuf, (inet_address*) addr, &alen); + ASSERT(res==0); (void)res; + /* Now "abuf" contains: Family(1b), Port(2b), IP(4|16b) */ /* NB: the following functions are safe to use, as they create tuples of copied Ints on the "spec", and do not install any String pts -- a ptr to "abuf" would be dangling upon exiting this function: */ - i = load_ip_address(spec, i, desc->sfamily, abuf+3); - i = load_ip_port (spec, i, abuf+1); + i = load_address(spec, i, abuf); /* IP,Port | Family,Addr */ i = LOAD_TUPLE (spec, i, 2); return i; } @@ -1522,7 +1705,7 @@ check_double_release(InetDrvBufStk *bs, ErlDrvBinary* buf) int i; for (i = 0; i < bs->buf.pos; ++i) { if (bs->buf.stk[i] == buf) { - erl_exit(ERTS_ABORT_EXIT, + erts_exit(ERTS_ABORT_EXIT, "Multiple buffer release in inet_drv, this " "is a bug, save the core and send it to " "[email protected]!"); @@ -1567,10 +1750,12 @@ static void release_buffer(ErlDrvBinary* buf) } } +#ifdef HAVE_UDP static ErlDrvBinary* realloc_buffer(ErlDrvBinary* buf, ErlDrvSizeT newsz) { return driver_realloc_binary(buf, newsz); } +#endif /* use a TRICK, access the refc field to see if any one else has * a ref to this buffer then call driver_free_binary else @@ -2119,7 +2304,6 @@ static ErlDrvTermData am_http_error; static ErlDrvTermData am_abs_path; static ErlDrvTermData am_absoluteURI; static ErlDrvTermData am_star; -static ErlDrvTermData am_undefined; static ErlDrvTermData am_http; static ErlDrvTermData am_https; static ErlDrvTermData am_scheme; @@ -2415,7 +2599,7 @@ int ssl_tls_inetdrv(void* arg, unsigned type, unsigned major, unsigned minor, { tcp_descriptor* desc = (tcp_descriptor*) arg; int i = 0; - ErlDrvTermData spec[28]; + ErlDrvTermData spec[30]; ErlDrvTermData caller = ERL_DRV_NIL; ErlDrvBinary* bin; int ret; @@ -2456,11 +2640,11 @@ int ssl_tls_inetdrv(void* arg, unsigned type, unsigned major, unsigned minor, if (desc->inet.active == INET_PASSIVE) { i = LOAD_TUPLE(spec, i, 2); i = LOAD_TUPLE(spec, i, 4); - ASSERT(i <= 28); + ASSERT(i <= sizeof(spec)/sizeof(*spec)); ret = erl_drv_send_term(desc->inet.dport, caller, spec, i); } else { - ASSERT(i <= 28); + ASSERT(i <= sizeof(spec)/sizeof(*spec)); ret = erl_drv_output_term(desc->inet.dport, spec, i); } done: @@ -2582,6 +2766,9 @@ static ErlDrvTermData am_sctp_rtoinfo, /* Option names */ /* For #sctp_paddrinfo{}: */ am_active, am_inactive, +# if HAVE_DECL_SCTP_UNCONFIRMED + am_unconfirmed, +# endif /* For #sctp_status{}: */ # if HAVE_DECL_SCTP_EMPTY @@ -2807,7 +2994,7 @@ static int sctp_parse_async_event ASSERT(sptr->spc_length <= sz); /* No buffer overrun */ i = LOAD_ATOM (spec, i, am_sctp_paddr_change); - i = load_ip_and_port(spec, i, desc, &sptr->spc_aaddr); + i = load_inet_get_address(spec, i, desc, &sptr->spc_aaddr); switch (sptr->spc_state) { @@ -3231,12 +3418,14 @@ static int tcp_error_message(tcp_descriptor* desc, int err) return erl_drv_output_term(desc->inet.dport, spec, i); } +#ifdef HAVE_UDP /* ** active mode message: -** {udp, S, IP, Port, [H1,...Hsz | Data]} or -** {sctp, S, IP, Port, {[AncilData], Event_or_Data}} +** {udp, S, IP, Port, [H1,...Hsz | Data]} or +** {sctp, S, IP, Port, {[AncilData], Event_or_Data}} ** where ** [H1,...,HSz] are msg headers (without IP/Port, UDP only), +** [AddrLen, H2,...,HSz] are msg headers for UDP AF_UNIX only ** Data : List() | Binary() */ static int packet_binary_message @@ -3246,6 +3435,7 @@ static int packet_binary_message ErlDrvTermData spec [PACKET_ERL_DRV_TERM_DATA_LEN]; int i = 0; int alen; + char* data = bin->orig_bytes+offs; DEBUGF(("packet_binary_message(%ld): len = %d\r\n", (long)desc->port, len)); @@ -3255,13 +3445,12 @@ static int packet_binary_message i = LOAD_ATOM(spec, i, am_udp ); /* UDP only */ # endif i = LOAD_PORT(spec, i, desc->dport); /* S */ - - alen = addrlen(desc->sfamily); - i = load_ip_address(spec, i, desc->sfamily, bin->orig_bytes+offs+3); - i = load_ip_port(spec, i, bin->orig_bytes+offs+1); /* IP, Port */ - - offs += (alen + 3); - len -= (alen + 3); + + alen = addrlen(data); + i = load_address(spec, i, data); /* IP,Port | Family,Addr */ + + offs += alen; + len -= alen; # ifdef HAVE_SCTP if (!IS_SCTP(desc)) @@ -3321,8 +3510,42 @@ static int packet_binary_message ASSERT(i <= PACKET_ERL_DRV_TERM_DATA_LEN); return erl_drv_output_term(desc->dport, spec, i); } +#endif /* +** active mode message: send active-to-passive transition message +** {tcp_passive, S} or +** {udp_passive, S} or +** {sctp_passive, S} +*/ + static int packet_passive_message(inet_descriptor* desc) + { + ErlDrvTermData spec[6]; + int i = 0; + + DEBUGF(("packet_passive_message(%ld):\r\n", (long)desc->port)); + +#if !defined(HAVE_UDP) && !defined(HAVE_SCTP) + i = LOAD_ATOM(spec, i, am_tcp_passive); +#else + if (desc->sprotocol == IPPROTO_TCP) + i = LOAD_ATOM(spec, i, am_tcp_passive); + else { +#ifdef HAVE_SCTP + i = LOAD_ATOM(spec, i, IS_SCTP(desc) ? am_sctp_passive : am_udp_passive); +#else + i = LOAD_ATOM(spec, i, am_udp_passive); +#endif + } +#endif + i = LOAD_PORT(spec, i, desc->dport); + i = LOAD_TUPLE(spec, i, 2); + ASSERT(i <= 6); + return erl_drv_output_term(desc->dport, spec, i); + } + +#ifdef HAVE_UDP +/* ** send active message {udp_error|sctp_error, S, Error} */ static int packet_error_message(udp_descriptor* udesc, int err) @@ -3348,7 +3571,7 @@ static int packet_error_message(udp_descriptor* udesc, int err) ASSERT(i == sizeof(spec)/sizeof(*spec)); return erl_drv_output_term(desc->dport, spec, i); } - +#endif /* ** active=TRUE: @@ -3364,7 +3587,7 @@ static int tcp_reply_data(tcp_descriptor* desc, char* buf, int len) int code; const char* body = buf; int bodylen = len; - + packet_get_body(desc->inet.htype, &body, &bodylen); if (desc->inet.deliver == INET_DELIVER_PORT) { @@ -3382,8 +3605,7 @@ static int tcp_reply_data(tcp_descriptor* desc, char* buf, int len) if (code < 0) return code; - if (desc->inet.active == INET_ONCE) - desc->inet.active = INET_PASSIVE; + INET_CHECK_ACTIVE_TO_PASSIVE(INETP(desc)); return code; } @@ -3410,12 +3632,11 @@ tcp_reply_binary_data(tcp_descriptor* desc, ErlDrvBinary* bin, int offs, int len } if (code < 0) return code; - if (desc->inet.active == INET_ONCE) - desc->inet.active = INET_PASSIVE; + INET_CHECK_ACTIVE_TO_PASSIVE(INETP(desc)); return code; } - +#ifdef HAVE_UDP static int packet_reply_binary_data(inet_descriptor* desc, unsigned int hsz, ErlDrvBinary * bin, int offs, int len, @@ -3434,11 +3655,11 @@ packet_reply_binary_data(inet_descriptor* desc, unsigned int hsz, code = packet_binary_message(desc, bin, offs, len, extra); if (code < 0) return code; - if (desc->active == INET_ONCE) - desc->active = INET_PASSIVE; + INET_CHECK_ACTIVE_TO_PASSIVE(desc); return code; } } +#endif /* ---------------------------------------------------------------------------- @@ -3480,6 +3701,7 @@ sock_init(void) /* May be called multiple times. */ #ifdef HAVE_SCTP static void inet_init_sctp(void) { INIT_ATOM(sctp); + INIT_ATOM(sctp_passive); INIT_ATOM(sctp_error); INIT_ATOM(true); INIT_ATOM(false); @@ -3489,6 +3711,7 @@ static void inet_init_sctp(void) { INIT_ATOM(binary); INIT_ATOM(active); INIT_ATOM(once); + INIT_ATOM(multi); INIT_ATOM(buffer); INIT_ATOM(linger); INIT_ATOM(recbuf); @@ -3498,6 +3721,7 @@ static void inet_init_sctp(void) { INIT_ATOM(priority); INIT_ATOM(tos); INIT_ATOM(ipv6_v6only); + INIT_ATOM(netns); /* Option names */ INIT_ATOM(sctp_rtoinfo); @@ -3575,7 +3799,10 @@ static void inet_init_sctp(void) { /* For #sctp_paddrinfo{}: */ INIT_ATOM(active); INIT_ATOM(inactive); - +# if HAVE_DECL_SCTP_UNCONFIRMED + INIT_ATOM(unconfirmed); +# endif + /* For #sctp_status{}: */ # if HAVE_DECL_SCTP_EMPTY INIT_ATOM(empty); @@ -3604,22 +3831,34 @@ static int inet_init() if (0 != erl_drv_tsd_key_create("inet_buffer_stack_key", &buffer_stack_key)) goto error; - ASSERT(sizeof(struct in_addr) == 4); + ERTS_CT_ASSERT(sizeof(struct in_addr) == 4); # if defined(HAVE_IN6) && defined(AF_INET6) - ASSERT(sizeof(struct in6_addr) == 16); + ERTS_CT_ASSERT(sizeof(struct in6_addr) == 16); # endif INIT_ATOM(ok); + INIT_ATOM(undefined); + INIT_ATOM(unspec); INIT_ATOM(tcp); +#ifdef HAVE_UDP INIT_ATOM(udp); +#endif INIT_ATOM(error); + INIT_ATOM(einval); INIT_ATOM(inet_async); INIT_ATOM(inet_reply); INIT_ATOM(timeout); INIT_ATOM(closed); + INIT_ATOM(tcp_passive); INIT_ATOM(tcp_closed); INIT_ATOM(tcp_error); +#ifdef HAVE_UDP + INIT_ATOM(udp_passive); INIT_ATOM(udp_error); +#endif +#ifdef HAVE_SYS_UN_H + INIT_ATOM(local); +#endif INIT_ATOM(empty_out_q); INIT_ATOM(ssl_tls); @@ -3631,21 +3870,41 @@ static int inet_init() INIT_ATOM(abs_path); INIT_ATOM(absoluteURI); am_star = driver_mk_atom("*"); - INIT_ATOM(undefined); INIT_ATOM(http); INIT_ATOM(https); INIT_ATOM(scheme); /* add TCP, UDP and SCTP drivers */ add_driver_entry(&tcp_inet_driver_entry); +#ifdef HAVE_UDP add_driver_entry(&udp_inet_driver_entry); +#endif + #ifdef HAVE_SCTP /* Check the size of SCTP AssocID -- currently both this driver and the Erlang part require 32 bit: */ - ASSERT(sizeof(sctp_assoc_t)==ASSOC_ID_LEN); -# if defined(HAVE_SCTP_BINDX) && defined (HAVE_SCTP_PEELOFF) + ERTS_CT_ASSERT(sizeof(sctp_assoc_t)==ASSOC_ID_LEN); +# if defined(HAVE_SCTP_BINDX) p_sctp_bindx = sctp_bindx; +# if defined(HAVE_SCTP_PEELOFF) p_sctp_peeloff = sctp_peeloff; +# else + p_sctp_peeloff = NULL; +# endif +# if defined(HAVE_SCTP_GETLADDRS) && defined(HAVE_SCTP_FREELADDRS) + p_sctp_getladdrs = sctp_getladdrs; + p_sctp_freeladdrs = sctp_freeladdrs; +# else + p_sctp_getladdrs = NULL; + p_sctp_freeladdrs = NULL; +# endif +# if defined(HAVE_SCTP_GETPADDRS) && defined(HAVE_SCTP_FREEPADDRS) + p_sctp_getpaddrs = sctp_getpaddrs; + p_sctp_freepaddrs = sctp_freepaddrs; +# else + p_sctp_getpaddrs = NULL; + p_sctp_freepaddrs = NULL; +# endif inet_init_sctp(); add_driver_entry(&sctp_inet_driver_entry); # else @@ -3660,12 +3919,36 @@ static int inet_init() void *ptr; if (erts_sys_ddll_sym(h_libsctp, "sctp_bindx", &ptr) == 0) { p_sctp_bindx = ptr; - inet_init_sctp(); - add_driver_entry(&sctp_inet_driver_entry); if (erts_sys_ddll_sym(h_libsctp, "sctp_peeloff", &ptr) == 0) { p_sctp_peeloff = ptr; } + else p_sctp_peeloff = NULL; + if (erts_sys_ddll_sym(h_libsctp, "sctp_getladdrs", &ptr) == 0) { + p_sctp_getladdrs = ptr; + } + else p_sctp_getladdrs = NULL; + if (erts_sys_ddll_sym(h_libsctp, "sctp_freeladdrs", &ptr) == 0) { + p_sctp_freeladdrs = ptr; + } + else { + p_sctp_freeladdrs = NULL; + p_sctp_getladdrs = NULL; + } + if (erts_sys_ddll_sym(h_libsctp, "sctp_getpaddrs", &ptr) == 0) { + p_sctp_getpaddrs = ptr; + } + else p_sctp_getpaddrs = NULL; + if (erts_sys_ddll_sym(h_libsctp, "sctp_freepaddrs", &ptr) == 0) { + p_sctp_freepaddrs = ptr; + } + else { + p_sctp_freepaddrs = NULL; + p_sctp_getpaddrs = NULL; + } + inet_init_sctp(); + add_driver_entry(&sctp_inet_driver_entry); } + else p_sctp_bindx = NULL; } } # endif @@ -3682,63 +3965,89 @@ static int inet_init() /* -** Set a inaddr structure: -** src = [P1,P0,X1,X2,.....] +** Set an inaddr structure: +** *src = [P1,P0,X1,X2,.....] ** dst points to a structure large enugh to keep any kind ** of inaddr. ** *len is set to length of src on call ** and is set to actual length of dst on return -** return NULL on error and ptr after port address on success +** return NULL if ok or ptr to errno string for error */ static char* inet_set_address(int family, inet_address* dst, - char* src, ErlDrvSizeT* len) + char* *src, ErlDrvSizeT* len) { short port; - if ((family == AF_INET) && (*len >= 2+4)) { + switch (family) { + case AF_INET: { + if (*len < 2+4) return str_einval; sys_memzero((char*)dst, sizeof(struct sockaddr_in)); - port = get_int16(src); + port = get_int16(*src); #ifndef NO_SA_LEN dst->sai.sin_len = sizeof(struct sockaddr_in); #endif dst->sai.sin_family = family; dst->sai.sin_port = sock_htons(port); - sys_memcpy(&dst->sai.sin_addr, src+2, 4); + sys_memcpy(&dst->sai.sin_addr, (*src)+2, 4); *len = sizeof(struct sockaddr_in); - return src + 2+4; + *src += 2 + 4; + return NULL; } #if defined(HAVE_IN6) && defined(AF_INET6) - else if ((family == AF_INET6) && (*len >= 2+16)) { + case AF_INET6: { + if (*len < 2+16) return str_einval; sys_memzero((char*)dst, sizeof(struct sockaddr_in6)); - port = get_int16(src); + port = get_int16(*src); #ifndef NO_SA_LEN dst->sai6.sin6_len = sizeof(struct sockaddr_in6); #endif dst->sai6.sin6_family = family; dst->sai6.sin6_port = sock_htons(port); dst->sai6.sin6_flowinfo = 0; /* XXX this may be set as well ?? */ - sys_memcpy(&dst->sai6.sin6_addr, src+2, 16); - *len = sizeof(struct sockaddr_in6); - return src + 2+16; + sys_memcpy(&dst->sai6.sin6_addr, (*src)+2, 16); + *len = sizeof(struct sockaddr_in6); + *src += 2 + 16; + return NULL; } #endif - return NULL; +#ifdef HAVE_SYS_UN_H + case AF_UNIX: { + int n; + if (*len == 0) return str_einval; + n = *((unsigned char*)(*src)); /* Length field */ + if ((*len < 1+n) || (sizeof(dst->sal.sun_path) < n+1)) { + return str_einval; + } + sys_memzero((char*)dst, sizeof(struct sockaddr_un)); + dst->sal.sun_family = family; + sys_memcpy(dst->sal.sun_path, (*src)+1, n); + *len = offsetof(struct sockaddr_un, sun_path) + n; + *src += 1 + n; + return NULL; + } +#endif + } + return str_eafnosupport; } /* ** Set an inaddr structure, address family comes from source data, ** or from argument if source data specifies constant address. ** -** src = [TAG,P1,P0] when TAG = INET_AF_ANY | INET_AF_LOOPBACK -** src = [TAG,P1,P0,X1,X2,...] when TAG = INET_AF_INET | INET_AF_INET6 +** *src = [TAG,P1,P0] +** when TAG = INET_AF_ANY | INET_AF_LOOPBACK +** *src = [TAG,P1,P0,X1,X2,...] +** when TAG = INET_AF_INET | INET_AF_INET6 | INET_AF_LOCAL +** *src = [TAG,Len,...] +** when TAG = INET_AF_LOCAL */ static char *inet_set_faddress(int family, inet_address* dst, - char *src, ErlDrvSizeT* len) { + char* *src, ErlDrvSizeT* len) { int tag; - if (*len < 1) return NULL; + if (*len < 1) return str_einval; (*len) --; - tag = *(src ++); + tag = *((*src) ++); switch (tag) { case INET_AF_INET: family = AF_INET; @@ -3748,12 +4057,18 @@ static char *inet_set_faddress(int family, inet_address* dst, family = AF_INET6; break; # endif +# ifdef HAVE_SYS_UN_H + case INET_AF_LOCAL: { + family = AF_UNIX; + break; + } +# endif case INET_AF_ANY: case INET_AF_LOOPBACK: { int port; - if (*len < 2) return NULL; - port = get_int16(src); + if (*len < 2) return str_einval; + port = get_int16(*src); switch (family) { case AF_INET: { struct in_addr addr; @@ -3765,7 +4080,7 @@ static char *inet_set_faddress(int family, inet_address* dst, addr.s_addr = sock_htonl(INADDR_LOOPBACK); break; default: - return NULL; + return str_einval; } sys_memzero((char*)dst, sizeof(struct sockaddr_in)); #ifndef NO_SA_LEN @@ -3787,7 +4102,7 @@ static char *inet_set_faddress(int family, inet_address* dst, paddr = &in6addr_loopback; break; default: - return NULL; + return str_einval; } sys_memzero((char*)dst, sizeof(struct sockaddr_in6)); #ifndef NO_SA_LEN @@ -3801,17 +4116,17 @@ static char *inet_set_faddress(int family, inet_address* dst, } break; # endif default: - return NULL; + return str_einval; } - return src + 2; + *src += 2; + return NULL; } break; default: - return NULL; + return str_eafnosupport; } return inet_set_address(family, dst, src, len); } - /* Get a inaddr structure ** src = inaddr structure ** *len is the lenght of structure @@ -3820,10 +4135,13 @@ static char *inet_set_faddress(int family, inet_address* dst, ** and *len is the length of dst on return ** (suitable to deliver to erlang) */ -static int inet_get_address(int family, char* dst, inet_address* src, unsigned int* len) +static int inet_get_address(char* dst, inet_address* src, unsigned int* len) { + /* Compare the code with inet_address_to_erlang() */ + int family; short port; + family = src->sa.sa_family; if ((family == AF_INET) && (*len >= sizeof(struct sockaddr_in))) { dst[0] = INET_AF_INET; port = sock_ntohs(src->sai.sin_port); @@ -3842,9 +4160,142 @@ static int inet_get_address(int family, char* dst, inet_address* src, unsigned i return 0; } #endif +#ifdef HAVE_SYS_UN_H + else if (family == AF_UNIX) { + size_t n, m; + if (*len < offsetof(struct sockaddr_un, sun_path)) return -1; + n = *len - offsetof(struct sockaddr_un, sun_path); + if (255 < n) return -1; + /* Portability fix: Assume that the address is a zero terminated + * string, except when the first byte is \0 i.e the + * string length is 0. Then use the reported length instead. + * This fix handles Linux's abstract socket address + * nonportable extension. + */ + m = my_strnlen(src->sal.sun_path, n); + if ((m == 0) && is_nonzero(src->sal.sun_path, n)) + m = n; + dst[0] = INET_AF_LOCAL; + dst[1] = (char) ((unsigned char) m); + sys_memcpy(dst+2, src->sal.sun_path, m); + *len = 1 + 1 + m; + return 0; + } +#endif + else if (family == AF_UNSPEC) { + dst[0] = INET_AF_UNSPEC; + *len = 1; + } + else { + dst[0] = INET_AF_UNDEFINED; + *len = 1; + } return -1; } +/* Same as the above, but take family from the address structure, +** and advance the address pointer to the next address +** according to the size of the current, +** and return the resulting encoded size +*/ +static int +inet_address_to_erlang(char *dst, inet_address **src, SOCKLEN_T sz) { + /* Compare the code with inet_get_address() */ + short port; + + switch ((*src)->sa.sa_family) { + case AF_INET: + if (dst) { + dst[0] = INET_AF_INET; + port = sock_ntohs((*src)->sai.sin_port); + put_int16(port, dst+1); + sys_memcpy(dst+1+2, (char *) &(*src)->sai.sin_addr, 4); + } + (*src) = (inet_address *) (&(*src)->sai + 1); + return 1 + 2 + 4; +#if defined(HAVE_IN6) && defined(AF_INET6) + case AF_INET6: + if (dst) { + dst[0] = INET_AF_INET6; + port = sock_ntohs((*src)->sai6.sin6_port); + put_int16(port, dst+1); + VALGRIND_MAKE_MEM_DEFINED(&(*src)->sai6.sin6_addr,16); /* false undefs from syscall sctp_get[lp]addrs */ + sys_memcpy(dst+1+2, (char *) &(*src)->sai6.sin6_addr, 16); + } + (*src) = (inet_address *) (&(*src)->sai6 + 1); + return 1 + 2 + 16; +#endif +#ifdef HAVE_SYS_UN_H + case AF_UNIX: { + size_t n, m; + if (sz < offsetof(struct sockaddr_un, sun_path)) return -1; + n = sz - offsetof(struct sockaddr_un, sun_path); + if (255 < n) return -1; + /* Portability fix: Assume that the address is a zero terminated + * string, except when the first byte is \0 i.e the + * string length is 0. Then use the reported length instead. + * This fix handles Linux's abstract socket address + * nonportable extension. + */ + m = my_strnlen((*src)->sal.sun_path, n); + if ((m == 0) && is_nonzero((*src)->sal.sun_path, n)) + m = n; + if (dst) { + dst[0] = INET_AF_LOCAL; + dst[1] = (char) ((unsigned char) m); + sys_memcpy(dst+2, (*src)->sal.sun_path, m); + } + (*src) = (inet_address *) (&(*src)->sal + 1); + return 1 + 1 + m; + } +#endif + default: + return -1; + } +} + +/* Encode n encoded addresses from addrs in the result buffer +*/ +static ErlDrvSizeT reply_inet_addrs +(int n, inet_address *addrs, char **rbuf, ErlDrvSizeT rsize, SOCKLEN_T sz) { + inet_address *ia; + int i, s; + ErlDrvSizeT rlen; + + if (IS_SOCKET_ERROR(n)) return ctl_error(sock_errno(), rbuf, rsize); + if (n == 0) return ctl_reply(INET_REP_OK, NULL, 0, rbuf, rsize); + + /* The sz argument is only used when we have got an actual size + * of addrs[0] from e.g getsockname() and then n == 1 + * so we will loop over 1 element below. Otherwise sz + * would be expected to differ between addresses but that + * can only happen for AF_UNIX and we will only be called with + * n > 1 for SCTP and that will never (?) happen with AF_UNIX + */ + + /* Calculate result length */ + rlen = 1; + ia = addrs; + for (i = 0; i < n; i++) { + s = inet_address_to_erlang(NULL, &ia, sz); + if (s < 0) break; + rlen += s; + } + + if (rlen > rsize) (*rbuf) = ALLOC(rlen); + + (*rbuf)[0] = INET_REP_OK; + rlen = 1; + ia = addrs; + for (i = 0; i < n; i++) { + s = inet_address_to_erlang((*rbuf)+rlen, &ia, sz); + if (s < 0) break; + rlen += s; + } + + return rlen; +} + static void desc_close(inet_descriptor* desc) { if (desc->s != INVALID_SOCKET) { @@ -3894,7 +4345,7 @@ static int erl_inet_close(inet_descriptor* desc) desc_close(desc); desc->state = INET_STATE_CLOSED; } else if (desc->prebound && (desc->s != INVALID_SOCKET)) { - sock_select(desc, FD_READ | FD_WRITE | FD_CLOSE, 0); + sock_select(desc, FD_READ | FD_WRITE | FD_CLOSE | ERL_DRV_USE_NO_CALLBACK, 0); desc->event_mask = 0; #ifdef __WIN32__ desc->forced_events = 0; @@ -3904,20 +4355,94 @@ static int erl_inet_close(inet_descriptor* desc) return 0; } - static ErlDrvSSizeT inet_ctl_open(inet_descriptor* desc, int domain, int type, char** rbuf, ErlDrvSizeT rsize) { + int save_errno; + int protocol; +#ifdef HAVE_SETNS + int current_ns, new_ns; + current_ns = new_ns = 0; +#endif + save_errno = 0; + if (desc->state != INET_STATE_CLOSED) return ctl_xerror(EXBADSEQ, rbuf, rsize); - if ((desc->s = sock_open(domain, type, desc->sprotocol)) == INVALID_SOCKET) - return ctl_error(sock_errno(), rbuf, rsize); - if ((desc->event = sock_create_event(desc)) == INVALID_EVENT) - return ctl_error(sock_errno(), rbuf, rsize); + +#ifdef HAVE_SETNS + if (desc->netns != NULL) { + /* Temporarily change network namespace for this thread + * while creating the socket + */ + current_ns = open("/proc/self/ns/net", O_RDONLY); + if (current_ns == INVALID_SOCKET) + return ctl_error(sock_errno(), rbuf, rsize); + new_ns = open(desc->netns, O_RDONLY); + if (new_ns == INVALID_SOCKET) { + save_errno = sock_errno(); + while (close(current_ns) == INVALID_SOCKET && + sock_errno() == EINTR); + return ctl_error(save_errno, rbuf, rsize); + } + if (setns(new_ns, CLONE_NEWNET) != 0) { + save_errno = sock_errno(); + while (close(new_ns) == INVALID_SOCKET && + sock_errno() == EINTR); + while (close(current_ns) == INVALID_SOCKET && + sock_errno() == EINTR); + return ctl_error(save_errno, rbuf, rsize); + } + else { + while (close(new_ns) == INVALID_SOCKET && + sock_errno() == EINTR); + } + } +#endif + protocol = desc->sprotocol; +#ifdef HAVE_SYS_UN_H + if (domain == AF_UNIX) protocol = 0; +#endif + if ((desc->s = sock_open(domain, type, protocol)) == INVALID_SOCKET) + save_errno = sock_errno(); +#ifdef HAVE_SETNS + if (desc->netns != NULL) { + /* Restore network namespace */ + if (setns(current_ns, CLONE_NEWNET) != 0) { + /* XXX Failed to restore network namespace. + * What to do? Tidy up and return an error... + * Note that the thread now might still be in the namespace. + * Can this even happen? Should the emulator be aborted? + */ + if (desc->s != INVALID_SOCKET) + save_errno = sock_errno(); + while (close(desc->s) == INVALID_SOCKET && + sock_errno() == EINTR); + desc->s = INVALID_SOCKET; + while (close(current_ns) == INVALID_SOCKET && + sock_errno() == EINTR); + return ctl_error(save_errno, rbuf, rsize); + } + else { + while (close(current_ns) == INVALID_SOCKET && + sock_errno() == EINTR); + } + } +#endif + if (desc->s == INVALID_SOCKET) + return ctl_error(save_errno, rbuf, rsize); + + if ((desc->event = sock_create_event(desc)) == INVALID_EVENT) { + save_errno = sock_errno(); + while (close(desc->s) == INVALID_SOCKET && + sock_errno() == EINTR); + desc->s = INVALID_SOCKET; + return ctl_error(save_errno, rbuf, rsize); + } SET_NONBLOCKING(desc->s); #ifdef __WIN32__ driver_select(desc->port, desc->event, ERL_DRV_READ, 1); #endif + desc->state = INET_STATE_OPEN; desc->stype = type; desc->sfamily = domain; @@ -3927,28 +4452,37 @@ static ErlDrvSSizeT inet_ctl_open(inet_descriptor* desc, int domain, int type, /* as inet_open but pass in an open socket (MUST BE OF RIGHT TYPE) */ static ErlDrvSSizeT inet_ctl_fdopen(inet_descriptor* desc, int domain, int type, - SOCKET s, char** rbuf, ErlDrvSizeT rsize) + SOCKET s, Uint32 bound, + char** rbuf, ErlDrvSizeT rsize) { inet_address name; - unsigned int sz = sizeof(name); + unsigned int sz; - /* check that it is a socket and that the socket is bound */ - if (IS_SOCKET_ERROR(sock_name(s, (struct sockaddr*) &name, &sz))) - return ctl_error(sock_errno(), rbuf, rsize); - if (name.sa.sa_family != domain) - return ctl_error(EINVAL, rbuf, rsize); + if (bound) { + /* check that it is a socket and that the socket is bound */ + sz = sizeof(name); + sys_memzero((char *) &name, sz); + if (IS_SOCKET_ERROR(sock_name(s, (struct sockaddr*) &name, &sz))) + return ctl_error(sock_errno(), rbuf, rsize); + if (name.sa.sa_family != domain) + return ctl_error(EINVAL, rbuf, rsize); + } desc->s = s; + if ((desc->event = sock_create_event(desc)) == INVALID_EVENT) return ctl_error(sock_errno(), rbuf, rsize); SET_NONBLOCKING(desc->s); #ifdef __WIN32__ driver_select(desc->port, desc->event, ERL_DRV_READ, 1); #endif - desc->state = INET_STATE_BOUND; /* assume bound */ + + desc->state = INET_STATE_OPEN; + if (type == SOCK_STREAM) { /* check if connected */ sz = sizeof(name); - if (!IS_SOCKET_ERROR(sock_peer(s, (struct sockaddr*) &name, &sz))) + if (!IS_SOCKET_ERROR(sock_peer(s, (struct sockaddr*) &name, &sz))) { desc->state = INET_STATE_CONNECTED; + } } desc->prebound = 1; /* used to prevent a real close since @@ -3974,8 +4508,7 @@ struct addr_if { #ifndef SIOCGIFNETMASK -static struct in_addr net_mask(in) -struct in_addr in; +static struct in_addr net_mask(struct in_addr in) { register u_long i = sock_ntohl(in.s_addr); @@ -4091,6 +4624,36 @@ static char* sockaddr_to_buf(struct sockaddr* addr, char* ptr, char* end) return NULL; } +/* sockaddr_bufsz_need + * Returns the number of bytes needed to store the information + * through sockaddr_to_buf + */ + +static size_t sockaddr_bufsz_need(struct sockaddr* addr) +{ + if (addr->sa_family == AF_INET || addr->sa_family == 0) { + return 1 + sizeof(struct in_addr); + } +#if defined(HAVE_IN6) && defined(AF_INET6) + else if (addr->sa_family == AF_INET6) { + return 1 + sizeof(struct in6_addr); + } +#endif +#if defined(AF_LINK) + if (addr->sa_family == AF_LINK) { + struct sockaddr_dl *sdl_p = (struct sockaddr_dl*) addr; + return 2 + sdl_p->sdl_alen; + } +#endif +#if defined(AF_PACKET) && defined(HAVE_NETPACKET_PACKET_H) + else if(addr->sa_family == AF_PACKET) { + struct sockaddr_ll *sll_p = (struct sockaddr_ll*) addr; + return 2 + sll_p->sll_halen; + } +#endif + return 0; +} + static char* buf_to_sockaddr(char* ptr, char* end, struct sockaddr* addr) { buf_check(ptr,end,1); @@ -4349,7 +4912,7 @@ static ErlDrvSSizeT inet_ctl_getiflist(inet_descriptor* desc, case AF_INET6: #endif case AF_INET: - ASSERT(sp+IFNAMSIZ+1 < sbuf+ifc.ifc_len+1) + ASSERT(sp+IFNAMSIZ+1 < sbuf+ifc.ifc_len+1); strncpy(sp, ifrp->ifr_name, IFNAMSIZ); sp[IFNAMSIZ] = '\0'; sp += strlen(sp), ++sp; @@ -5150,7 +5713,7 @@ done: ia_p->Ipv6IfIndex && ia_p->Ipv6IfIndex != index) { - /* Oops, there was an other interface for IPv6. Possible? XXX */ + /* Oops, there was another interface for IPv6. Possible? XXX */ index = ia_p->Ipv6IfIndex; goto index; } @@ -5169,6 +5732,11 @@ done: } #elif defined(HAVE_GETIFADDRS) +#ifdef DEBUG +#define GETIFADDRS_BUFSZ (1) +#else +#define GETIFADDRS_BUFSZ (512) +#endif static ErlDrvSSizeT inet_ctl_getifaddrs(inet_descriptor* desc_p, char **rbuf_pp, ErlDrvSizeT rsize) @@ -5179,15 +5747,15 @@ static ErlDrvSSizeT inet_ctl_getifaddrs(inet_descriptor* desc_p, char *buf_p; char *buf_alloc_p; - buf_size = 512; - buf_alloc_p = ALLOC(buf_size); + buf_size = GETIFADDRS_BUFSZ; + buf_alloc_p = ALLOC(GETIFADDRS_BUFSZ); buf_p = buf_alloc_p; # define BUF_ENSURE(Size) \ do { \ int NEED_, GOT_ = buf_p - buf_alloc_p; \ NEED_ = GOT_ + (Size); \ if (NEED_ > buf_size) { \ - buf_size = NEED_ + 512; \ + buf_size = NEED_ + GETIFADDRS_BUFSZ; \ buf_alloc_p = REALLOC(buf_alloc_p, buf_size); \ buf_p = buf_alloc_p + GOT_; \ } \ @@ -5200,7 +5768,7 @@ static ErlDrvSSizeT inet_ctl_getifaddrs(inet_descriptor* desc_p, while (! (P_ = sockaddr_to_buf((sa), buf_p, \ buf_alloc_p+buf_size))) { \ int GOT_ = buf_p - buf_alloc_p; \ - buf_size += 512; \ + buf_size += GETIFADDRS_BUFSZ; \ buf_alloc_p = REALLOC(buf_alloc_p, buf_size); \ buf_p = buf_alloc_p + GOT_; \ } \ @@ -5257,10 +5825,11 @@ static ErlDrvSSizeT inet_ctl_getifaddrs(inet_descriptor* desc_p, || ifa_p->ifa_addr->sa_family == AF_PACKET #endif ) { - char *bp = buf_p; - BUF_ENSURE(1); - SOCKADDR_TO_BUF(INET_IFOPT_HWADDR, ifa_p->ifa_addr); - if (buf_p - bp < 4) buf_p = bp; /* Empty hwaddr */ + size_t need = sockaddr_bufsz_need(ifa_p->ifa_addr); + if (need > 3) { + BUF_ENSURE(1 + need); + SOCKADDR_TO_BUF(INET_IFOPT_HWADDR, ifa_p->ifa_addr); + } } #endif } @@ -5275,6 +5844,7 @@ static ErlDrvSSizeT inet_ctl_getifaddrs(inet_descriptor* desc_p, return buf_size; # undef BUF_ENSURE } +#undef GETIFADDRS_BUFSZ #else @@ -5375,9 +5945,9 @@ static int inet_set_opts(inet_descriptor* desc, char* ptr, int len) int arg_sz; enum PacketParseType old_htype = desc->htype; int old_active = desc->active; - int propagate = 0; /* Set to 1 if failure to set this option - should be propagated to erlang (not all - errors can be propagated for BC reasons) */ + int propagate; /* Set to 1 if failure to set this option + should be propagated to erlang (not all + errors can be propagated for BC reasons) */ int res; #ifdef HAVE_SCTP /* SCTP sockets are treated completely separately: */ @@ -5394,6 +5964,7 @@ static int inet_set_opts(inet_descriptor* desc, char* ptr, int len) arg_ptr = (char*) &ival; arg_sz = sizeof(ival); proto = SOL_SOCKET; + propagate = 0; switch(opt) { case INET_LOPT_HEADER: @@ -5424,11 +5995,33 @@ static int inet_set_opts(inet_descriptor* desc, char* ptr, int len) case INET_LOPT_ACTIVE: DEBUGF(("inet_set_opts(%ld): s=%d, ACTIVE=%d\r\n", - (long)desc->port, desc->s,ival)); + (long)desc->port, desc->s, ival)); desc->active = ival; + if (desc->active == INET_MULTI) { + long ac = desc->active_count; + Sint16 nval = get_int16(ptr); + ptr += 2; + len -= 2; + ac += nval; + if (ac > INT16_MAX || ac < INT16_MIN) + return -1; + desc->active_count += nval; + if (desc->active_count < 0) + desc->active_count = 0; + if (desc->active_count == 0) { + desc->active = INET_PASSIVE; + packet_passive_message(desc); + } + } else + desc->active_count = 0; if ((desc->stype == SOCK_STREAM) && (desc->active != INET_PASSIVE) && (desc->state == INET_STATE_CLOSED)) { - tcp_closed_message((tcp_descriptor *) desc); + tcp_descriptor *tdesc = (tcp_descriptor *) desc; + if (tdesc->tcp_add_flags & TCP_ADDF_DELAYED_ECONNRESET) { + tdesc->tcp_add_flags &= ~TCP_ADDF_DELAYED_ECONNRESET; + tcp_error_message(tdesc, ECONNRESET); + } + tcp_closed_message(tdesc); if (desc->exitf) { driver_exit(desc->port, 0); return 0; /* Give up on this socket, descriptor lost */ @@ -5521,6 +6114,7 @@ static int inet_set_opts(inet_descriptor* desc, char* ptr, int len) } continue; +#ifdef HAVE_UDP case INET_LOPT_UDP_READ_PACKETS: if (desc->stype == SOCK_DGRAM) { udp_descriptor* udesc = (udp_descriptor*) desc; @@ -5528,6 +6122,37 @@ static int inet_set_opts(inet_descriptor* desc, char* ptr, int len) udesc->read_packets = ival; } continue; +#endif + +#ifdef HAVE_SETNS + case INET_LOPT_NETNS: + /* It is annoying that ival and len are both (signed) int */ + if (ival < 0) return -1; + if (len < ival) return -1; + if (desc->netns != NULL) FREE(desc->netns); + desc->netns = ALLOC(((unsigned int) ival) + 1); + memcpy(desc->netns, ptr, ival); + desc->netns[ival] = '\0'; + ptr += ival; + len -= ival; + continue; +#endif + + case INET_LOPT_TCP_SHOW_ECONNRESET: + if (desc->sprotocol == IPPROTO_TCP) { + tcp_descriptor* tdesc = (tcp_descriptor*) desc; + if (ival) + tdesc->tcp_add_flags |= TCP_ADDF_SHOW_ECONNRESET; + else + tdesc->tcp_add_flags &= ~TCP_ADDF_SHOW_ECONNRESET; + } + continue; + + case INET_LOPT_LINE_DELIM: + DEBUGF(("inet_set_opts(%ld): s=%d, LINE_DELIM=%d\r\n", + (long)desc->port, desc->s, ival)); + desc->delimiter = (char)ival; + continue; case INET_OPT_REUSEADDR: #ifdef __WIN32__ @@ -5573,6 +6198,13 @@ static int inet_set_opts(inet_descriptor* desc, char* ptr, int len) arg_sz = sizeof(li_val); DEBUGF(("inet_set_opts(%ld): s=%d, SO_LINGER=%d,%d", (long)desc->port, desc->s, li_val.l_onoff,li_val.l_linger)); + if (desc->sprotocol == IPPROTO_TCP) { + tcp_descriptor* tdesc = (tcp_descriptor*) desc; + if (li_val.l_onoff && li_val.l_linger == 0) + tdesc->tcp_add_flags |= TCP_ADDF_LINGER_ZERO; + else + tdesc->tcp_add_flags &= ~TCP_ADDF_LINGER_ZERO; + } break; case INET_OPT_PRIORITY: @@ -5722,7 +6354,8 @@ static int inet_set_opts(inet_descriptor* desc, char* ptr, int len) /* XXX fprintf(stderr,"desc->htype == %d, old_htype == %d, desc->active == %d, old_active == %d\r\n",(int)desc->htype, (int) old_htype, (int) desc->active, (int) old_active );*/ - return 1+(desc->htype == old_htype && desc->active == INET_ONCE); + return 1+(desc->htype == old_htype && + (desc->active == INET_ONCE || desc->active == INET_MULTI)); } return 0; } @@ -5855,9 +6488,39 @@ static int sctp_set_opts(inet_descriptor* desc, char* ptr, int len) case INET_LOPT_ACTIVE: desc->active = get_int32(curr); curr += 4; + if (desc->active == INET_MULTI) { + long ac = desc->active_count; + Sint16 nval = get_int16(curr); curr += 2; + ac += nval; + if (ac > INT16_MAX || ac < INT16_MIN) + return -1; + desc->active_count += nval; + if (desc->active_count < 0) + desc->active_count = 0; + if (desc->active_count == 0) { + desc->active = INET_PASSIVE; + packet_passive_message(desc); + } + } else + desc->active_count = 0; res = 0; continue; +#ifdef HAVE_SETNS + case INET_LOPT_NETNS: + { + size_t ns_len; + ns_len = get_int32(curr); curr += 4; + CHKLEN(curr, ns_len); + if (desc->netns != NULL) FREE(desc->netns); + desc->netns = ALLOC(ns_len + 1); + memcpy(desc->netns, curr, ns_len); + desc->netns[ns_len] = '\0'; + curr += ns_len; + } + continue; +#endif + /* SCTP options and applicable generic INET options: */ case SCTP_OPT_RTOINFO: @@ -6054,7 +6717,6 @@ static int sctp_set_opts(inet_descriptor* desc, char* ptr, int len) case SCTP_OPT_SET_PEER_PRIMARY_ADDR: { ErlDrvSizeT alen; - char *after; CHKLEN(curr, ASSOC_ID_LEN); /* XXX: These 2 opts have isomorphic value data structures, @@ -6065,12 +6727,9 @@ static int sctp_set_opts(inet_descriptor* desc, char* ptr, int len) /* Fill in "arg.prim.sspp_addr": */ alen = ptr + len - curr; - after = inet_set_faddress(desc->sfamily, - (inet_address*) (&arg.prim.sspp_addr), - curr, &alen); - if (after == NULL) - return -1; - curr = after; + if (inet_set_faddress + (desc->sfamily, (inet_address*) (&arg.prim.sspp_addr), + &curr, &alen) != NULL) return -1; proto = IPPROTO_SCTP; if (eopt == SCTP_OPT_PRIMARY_ADDR) @@ -6096,7 +6755,6 @@ static int sctp_set_opts(inet_descriptor* desc, char* ptr, int len) case SCTP_OPT_PEER_ADDR_PARAMS: { ErlDrvSizeT alen; - char *after; # ifdef HAVE_STRUCT_SCTP_PADDRPARAMS_SPP_FLAGS int eflags, cflags, hb_enable, hb_disable, pmtud_enable, pmtud_disable; @@ -6111,12 +6769,9 @@ static int sctp_set_opts(inet_descriptor* desc, char* ptr, int len) /* Fill in "pap.spp_address": */ alen = ptr + len - curr; - after = inet_set_faddress(desc->sfamily, - (inet_address*) (&arg.pap.spp_address), - curr, &alen); - if (after == NULL) - return -1; - curr = after; + if (inet_set_faddress + (desc->sfamily, (inet_address*) (&arg.pap.spp_address), + &curr, &alen) != NULL) return -1; CHKLEN(curr, 4 + 2 + 3*4); @@ -6323,7 +6978,7 @@ static ErlDrvSSizeT inet_fill_opts(inet_descriptor* desc, do { \ ErlDrvSizeT new_need = ((Ptr) - (*dest)) + (Size); \ if (new_need > dest_used) { \ - erl_exit(1,"Internal error in inet_drv, " \ + erts_exit(ERTS_ERROR_EXIT,"Internal error in inet_drv, " \ "miscalculated buffer size"); \ } \ dest_used = new_need; \ @@ -6362,6 +7017,11 @@ static ErlDrvSSizeT inet_fill_opts(inet_descriptor* desc, case INET_LOPT_ACTIVE: *ptr++ = opt; put_int32(desc->active, ptr); + if (desc->active == INET_MULTI) { + PLACE_FOR(2,ptr); + put_int16(desc->active_count, ptr); + ptr += 2; + } continue; case INET_LOPT_PACKET: *ptr++ = opt; @@ -6444,6 +7104,7 @@ static ErlDrvSSizeT inet_fill_opts(inet_descriptor* desc, } continue; +#ifdef HAVE_UDP case INET_LOPT_UDP_READ_PACKETS: if (desc->stype == SOCK_DGRAM) { *ptr++ = opt; @@ -6453,6 +7114,34 @@ static ErlDrvSSizeT inet_fill_opts(inet_descriptor* desc, TRUNCATE_TO(0,ptr); } continue; +#endif + +#ifdef HAVE_SETNS + case INET_LOPT_NETNS: + if (desc->netns != NULL) { + size_t netns_len; + netns_len = strlen(desc->netns); + *ptr++ = opt; + put_int32(netns_len, ptr); + PLACE_FOR(netns_len, ptr); + memcpy(ptr, desc->netns, netns_len); + ptr += netns_len; + } else { + TRUNCATE_TO(0,ptr); + } + continue; +#endif + + case INET_LOPT_TCP_SHOW_ECONNRESET: + if (desc->sprotocol == IPPROTO_TCP) { + tcp_descriptor* tdesc = (tcp_descriptor*) desc; + *ptr++ = opt; + ival = !!(tdesc->tcp_add_flags & TCP_ADDF_SHOW_ECONNRESET); + put_int32(ival, ptr); + } else { + TRUNCATE_TO(0,ptr); + } + continue; case INET_OPT_PRIORITY: #ifdef SO_PRIORITY @@ -6605,14 +7294,14 @@ static ErlDrvSSizeT inet_fill_opts(inet_descriptor* desc, #ifdef HAVE_SCTP #define LOAD_PADDRINFO_CNT \ - (2*LOAD_ATOM_CNT + LOAD_ASSOC_ID_CNT + LOAD_IP_AND_PORT_CNT + \ + (2*LOAD_ATOM_CNT + LOAD_ASSOC_ID_CNT + LOAD_INET_GET_ADDRESS_CNT + \ 4*LOAD_INT_CNT + LOAD_TUPLE_CNT) static int load_paddrinfo (ErlDrvTermData * spec, int i, inet_descriptor* desc, struct sctp_paddrinfo* pai) { i = LOAD_ATOM (spec, i, am_sctp_paddrinfo); i = LOAD_ASSOC_ID (spec, i, pai->spinfo_assoc_id); - i = load_ip_and_port(spec, i, desc, &pai->spinfo_address); + i = load_inet_get_address(spec, i, desc, &pai->spinfo_address); switch(pai->spinfo_state) { case SCTP_ACTIVE: @@ -6621,8 +7310,13 @@ static int load_paddrinfo (ErlDrvTermData * spec, int i, case SCTP_INACTIVE: i = LOAD_ATOM (spec, i, am_inactive); break; +# if HAVE_DECL_SCTP_UNCONFIRMED + case SCTP_UNCONFIRMED: + i = LOAD_ATOM (spec, i, am_unconfirmed); + break; +# endif default: - ASSERT(0); /* NB: SCTP_UNCONFIRMED modifier not yet supported */ + i = LOAD_ATOM (spec, i, am_undefined); } i = LOAD_INT (spec, i, pai->spinfo_cwnd); i = LOAD_INT (spec, i, pai->spinfo_srtt); @@ -6661,7 +7355,7 @@ static ErlDrvSSizeT sctp_fill_opts(inet_descriptor* desc, do { \ int need; \ if ((Index) > spec_allocated) { \ - erl_exit(1,"Internal error in inet_drv, " \ + erts_exit(ERTS_ERROR_EXIT,"Internal error in inet_drv, " \ "miscalculated buffer size"); \ } \ need = (Index) + (N); \ @@ -6718,7 +7412,10 @@ static ErlDrvSSizeT sctp_fill_opts(inet_descriptor* desc, } case INET_LOPT_ACTIVE: { - PLACE_FOR(spec, i, 2*LOAD_ATOM_CNT + LOAD_TUPLE_CNT); + if (desc->active == INET_MULTI) + PLACE_FOR(spec, i, LOAD_ATOM_CNT + LOAD_INT_CNT + LOAD_TUPLE_CNT); + else + PLACE_FOR(spec, i, 2*LOAD_ATOM_CNT + LOAD_TUPLE_CNT); i = LOAD_ATOM (spec, i, am_active); switch (desc->active) { @@ -6731,12 +7428,31 @@ static ErlDrvSSizeT sctp_fill_opts(inet_descriptor* desc, case INET_ONCE : { i = LOAD_ATOM (spec, i, am_once); break; } + case INET_MULTI : + { i = LOAD_INT(spec, i, desc->active_count); break; } + default: ASSERT (0); } i = LOAD_TUPLE (spec, i, 2); break; } +#ifdef HAVE_SETNS + case INET_LOPT_NETNS: + if (desc->netns != NULL) { + PLACE_FOR + (spec, i, + LOAD_ATOM_CNT + LOAD_BUF2BINARY_CNT + LOAD_TUPLE_CNT); + i = LOAD_ATOM (spec, i, am_netns); + i = LOAD_BUF2BINARY + (spec, i, desc->netns, strlen(desc->netns)); + i = LOAD_TUPLE (spec, i, 2); + break; + } + else + continue; /* Ignore */ +#endif + /* SCTP and generic INET options: */ case SCTP_OPT_RTOINFO: @@ -7001,7 +7717,7 @@ static ErlDrvSSizeT sctp_fill_opts(inet_descriptor* desc, /* Fill in the response: */ PLACE_FOR(spec, i, 2*LOAD_ATOM_CNT + LOAD_ASSOC_ID_CNT + - LOAD_IP_AND_PORT_CNT + 2*LOAD_TUPLE_CNT); + LOAD_INET_GET_ADDRESS_CNT + 2*LOAD_TUPLE_CNT); switch (eopt) { case SCTP_OPT_PRIMARY_ADDR: i = LOAD_ATOM(spec, i, am_sctp_primary_addr); @@ -7015,7 +7731,7 @@ static ErlDrvSSizeT sctp_fill_opts(inet_descriptor* desc, ASSERT(0); } i = LOAD_ASSOC_ID (spec, i, sp.sspp_assoc_id); - i = load_ip_and_port(spec, i, desc, &sp.sspp_addr); + i = load_inet_get_address(spec, i, desc, &sp.sspp_addr); i = LOAD_TUPLE (spec, i, 3); i = LOAD_TUPLE (spec, i, 2); break; @@ -7042,7 +7758,7 @@ static ErlDrvSSizeT sctp_fill_opts(inet_descriptor* desc, struct sctp_paddrparams ap; unsigned int sz = sizeof(ap); int n; - char *after; + char *before, *xerror; ErlDrvSizeT alen; if (buflen < ASSOC_ID_LEN) RETURN_ERROR(spec, -EINVAL); @@ -7050,23 +7766,32 @@ static ErlDrvSSizeT sctp_fill_opts(inet_descriptor* desc, buf += ASSOC_ID_LEN; buflen -= ASSOC_ID_LEN; alen = buflen; - after = inet_set_faddress(desc->sfamily, - (inet_address*) (&ap.spp_address), - buf, &alen); - if (after == NULL) RETURN_ERROR(spec, -EINVAL); - buflen -= after - buf; - buf = after; - + before = buf; + xerror = + inet_set_faddress + (desc->sfamily, (inet_address*) (&ap.spp_address), + &buf, &alen); + if (xerror != NULL) { +#ifdef EAFNOSUPPORT + if (xerror == str_eafnosupport) { + RETURN_ERROR(spec, -EAFNOSUPPORT); + } +#else + RETURN_ERROR(spec, -EINVAL); +#endif + } + buflen -= buf - before; + if (sock_getopt(desc->s, IPPROTO_SCTP, SCTP_PEER_ADDR_PARAMS, &ap, &sz) < 0) continue; /* Fill in the response: */ PLACE_FOR(spec, i, 2*LOAD_ATOM_CNT + LOAD_ASSOC_ID_CNT + - LOAD_IP_AND_PORT_CNT + 4*LOAD_INT_CNT); + LOAD_INET_GET_ADDRESS_CNT + 4*LOAD_INT_CNT); i = LOAD_ATOM (spec, i, am_sctp_peer_addr_params); i = LOAD_ATOM (spec, i, am_sctp_paddrparams); i = LOAD_ASSOC_ID (spec, i, ap.spp_assoc_id); - i = load_ip_and_port(spec, i, desc, &ap.spp_address); + i = load_inet_get_address(spec, i, desc, &ap.spp_address); i = LOAD_INT (spec, i, ap.spp_hbinterval); i = LOAD_INT (spec, i, ap.spp_pathmaxrxt); @@ -7282,7 +8007,7 @@ static ErlDrvSSizeT sctp_fill_opts(inet_descriptor* desc, { struct sctp_paddrinfo pai; unsigned int sz = sizeof(pai); - char *after; + char *before, *xerror; ErlDrvSizeT alen; if (buflen < ASSOC_ID_LEN) RETURN_ERROR(spec, -EINVAL); @@ -7290,13 +8015,22 @@ static ErlDrvSSizeT sctp_fill_opts(inet_descriptor* desc, buf += ASSOC_ID_LEN; buflen -= ASSOC_ID_LEN; alen = buflen; - after = inet_set_faddress(desc->sfamily, - (inet_address*) (&pai.spinfo_address), - buf, &alen); - if (after == NULL) RETURN_ERROR(spec, -EINVAL); - buflen -= after - buf; - buf = after; - + before = buf; + xerror = + inet_set_faddress + (desc->sfamily, (inet_address*) (&pai.spinfo_address), + &buf, &alen); + if (xerror != NULL) { +#ifdef EAFNOSUPPORT + if (xerror == str_eafnosupport) { + RETURN_ERROR(spec, -EAFNOSUPPORT); + } +#else + RETURN_ERROR(spec, -EINVAL); +#endif + } + buflen -= buf - before; + if (sock_getopt(desc->s, IPPROTO_SCTP, SCTP_GET_PEER_ADDR_INFO, &pai, &sz) < 0) continue; /* Fill in the response: */ @@ -7458,9 +8192,26 @@ static ErlDrvSSizeT inet_subscribe(inet_descriptor* desc, static void inet_stop(inet_descriptor* desc) { erl_inet_close(desc); +#ifdef HAVE_SETNS + if (desc->netns != NULL) + FREE(desc->netns); +#endif FREE(desc); } +static void inet_emergency_close(ErlDrvData data) +{ + /* valid for any (UDP, TCP or SCTP) descriptor */ + tcp_descriptor* tcp_desc = (tcp_descriptor*)data; + inet_descriptor* desc = INETP(tcp_desc); + DEBUGF(("inet_emergency_close(%ld) {s=%d\r\n", + (long)desc->port, desc->s)); + if (desc->s != INVALID_SOCKET) { + sock_close(desc->s); + } +} + + static void set_default_msgq_limits(ErlDrvPort port) { ErlDrvSizeT q_high = INET_HIGH_MSGQ_WATERMARK; @@ -7507,6 +8258,8 @@ static ErlDrvData inet_start(ErlDrvPort port, int size, int protocol) socket */ desc->deliver = INET_DELIVER_TERM; /* standard term format */ desc->active = INET_PASSIVE; /* start passive */ + desc->active_count = 0; + desc->delimiter = '\n'; /* line delimiting char */ desc->oph = NULL; desc->opt = NULL; @@ -7537,6 +8290,10 @@ static ErlDrvData inet_start(ErlDrvPort port, int size, int protocol) desc->is_ignored = 0; +#ifdef HAVE_SETNS + desc->netns = NULL; +#endif + return (ErlDrvData)desc; } @@ -7684,6 +8441,11 @@ static ErlDrvSSizeT inet_ctl(inet_descriptor* desc, int cmd, char* buf, put_int32(INET_AF_INET6, &tbuf[0]); } #endif +#ifdef HAVE_SYS_UN_H + else if (desc->sfamily == AF_UNIX) { + put_int32(INET_AF_LOCAL, &tbuf[0]); + } +#endif else return ctl_error(EINVAL, rbuf, rsize); @@ -7726,83 +8488,161 @@ static ErlDrvSSizeT inet_ctl(inet_descriptor* desc, int cmd, char* buf, return ctl_reply(INET_REP_OK, tbuf, strlen(tbuf), rbuf, rsize); } + case INET_REQ_GETPADDRS: { + DEBUGF(("inet_ctl(%ld): INET_GETPADDRS\r\n", (long)desc->port)); + + if (len != 4) return ctl_error(EINVAL, rbuf, rsize); + + if (! IS_OPEN(desc)) return ctl_xerror(EXBADPORT, rbuf, rsize); + +#ifdef HAVE_SCTP + if (IS_SCTP(desc) && p_sctp_getpaddrs) { + struct sockaddr *sa; + Uint32 assoc_id; + int n; + ErlDrvSizeT rlen; + + assoc_id = get_int32(buf); + n = p_sctp_getpaddrs(desc->s, assoc_id, &sa); + rlen = reply_inet_addrs(n, (inet_address *) sa, rbuf, rsize, 0); + if (n > 0) p_sctp_freepaddrs(sa); + return rlen; + } +#endif + { /* Fallback to sock_peer */ + inet_address addr; + SOCKLEN_T sz; + int i; + + sz = sizeof(addr); + i = sock_peer(desc->s, (struct sockaddr *) &addr, &sz); + return reply_inet_addrs(i >= 0 ? 1 : i, &addr, rbuf, rsize, sz); + } + } + case INET_REQ_PEER: { /* get peername */ char tbuf[sizeof(inet_address)]; inet_address peer; inet_address* ptr; - unsigned int sz = sizeof(peer); + unsigned int sz; DEBUGF(("inet_ctl(%ld): PEER\r\n", (long)desc->port)); if (!(desc->state & INET_F_ACTIVE)) return ctl_error(ENOTCONN, rbuf, rsize); - if ((ptr = desc->peer_ptr) == NULL) { + if ((ptr = desc->peer_ptr) != NULL) { + sz = desc->peer_addr_len; + } + else { ptr = &peer; - if (IS_SOCKET_ERROR(sock_peer(desc->s, (struct sockaddr*)ptr,&sz))) + sz = sizeof(peer); + if (IS_SOCKET_ERROR + (sock_peer + (desc->s, (struct sockaddr*)ptr, &sz))) return ctl_error(sock_errno(), rbuf, rsize); } - if (inet_get_address(desc->sfamily, tbuf, ptr, &sz) < 0) + if (inet_get_address(tbuf, ptr, &sz) < 0) return ctl_error(EINVAL, rbuf, rsize); return ctl_reply(INET_REP_OK, tbuf, sz, rbuf, rsize); } case INET_REQ_SETPEER: { /* set fake peername Port Address */ + char *xerror; if (len == 0) { desc->peer_ptr = NULL; return ctl_reply(INET_REP_OK, NULL, 0, rbuf, rsize); } else if (len < 2) return ctl_error(EINVAL, rbuf, rsize); - else if (inet_set_address(desc->sfamily, &desc->peer_addr, - buf, &len) == NULL) - return ctl_error(EINVAL, rbuf, rsize); + else if ((xerror = inet_set_faddress + (desc->sfamily, &desc->peer_addr, &buf, &len)) != NULL) + return ctl_xerror(xerror, rbuf, rsize); else { desc->peer_ptr = &desc->peer_addr; + desc->peer_addr_len = (SOCKLEN_T) len; return ctl_reply(INET_REP_OK, NULL, 0, rbuf, rsize); } } + case INET_REQ_GETLADDRS: { + DEBUGF(("inet_ctl(%ld): INET_GETLADDRS\r\n", (long)desc->port)); + + if (len != 4) return ctl_error(EINVAL, rbuf, rsize); + + if (! IS_OPEN(desc)) return ctl_xerror(EXBADPORT, rbuf, rsize); + +#ifdef HAVE_SCTP + if (IS_SCTP(desc) && p_sctp_getladdrs) { + struct sockaddr *sa; + Uint32 assoc_id; + int n; + ErlDrvSizeT rlen; + + assoc_id = get_int32(buf); + n = p_sctp_getladdrs(desc->s, assoc_id, &sa); + rlen = reply_inet_addrs(n, (inet_address *) sa, rbuf, rsize, 0); + if (n > 0) p_sctp_freeladdrs(sa); + return rlen; + } +#endif + { /* Fallback to sock_name */ + inet_address addr; + SOCKLEN_T sz; + int i; + + sz = sizeof(addr); + sys_memzero((char *) &addr, sz); + i = sock_name(desc->s, (struct sockaddr *) &addr, &sz); + return reply_inet_addrs(i >= 0 ? 1 : i, &addr, rbuf, rsize, sz); + } + } + case INET_REQ_NAME: { /* get sockname */ char tbuf[sizeof(inet_address)]; inet_address name; inet_address* ptr; - unsigned int sz = sizeof(name); + unsigned int sz; DEBUGF(("inet_ctl(%ld): NAME\r\n", (long)desc->port)); - if (!IS_BOUND(desc)) - return ctl_error(EINVAL, rbuf, rsize); /* address is not valid */ - - if ((ptr = desc->name_ptr) == NULL) { + if ((ptr = desc->name_ptr) != NULL) { + sz = desc->name_addr_len; + } + else { ptr = &name; - if (IS_SOCKET_ERROR(sock_name(desc->s, (struct sockaddr*)ptr, &sz))) + sz = sizeof(name); + sys_memzero((char *) &name, sz); + if (IS_SOCKET_ERROR + (sock_name(desc->s, (struct sockaddr*)ptr, &sz))) return ctl_error(sock_errno(), rbuf, rsize); } - if (inet_get_address(desc->sfamily, tbuf, ptr, &sz) < 0) + if (inet_get_address(tbuf, ptr, &sz) < 0) return ctl_error(EINVAL, rbuf, rsize); return ctl_reply(INET_REP_OK, tbuf, sz, rbuf, rsize); } - case INET_REQ_SETNAME: { /* set fake peername Port Address */ + case INET_REQ_SETNAME: { /* set fake sockname Port Address */ + char *xerror; if (len == 0) { desc->name_ptr = NULL; return ctl_reply(INET_REP_OK, NULL, 0, rbuf, rsize); } else if (len < 2) return ctl_error(EINVAL, rbuf, rsize); - else if (inet_set_address(desc->sfamily, &desc->name_addr, - buf, &len) == NULL) - return ctl_error(EINVAL, rbuf, rsize); + else if ((xerror = inet_set_faddress + (desc->sfamily, &desc->name_addr, &buf, &len)) != NULL) + return ctl_xerror(xerror, rbuf, rsize); else { desc->name_ptr = &desc->name_addr; + desc->name_addr_len = (SOCKLEN_T) len; return ctl_reply(INET_REP_OK, NULL, 0, rbuf, rsize); } } case INET_REQ_BIND: { /* bind socket */ - char tbuf[2]; + char tbuf[2], *xerror; inet_address local; - short port; + int port; DEBUGF(("inet_ctl(%ld): BIND\r\n", (long)desc->port)); @@ -7811,21 +8651,24 @@ static ErlDrvSSizeT inet_ctl(inet_descriptor* desc, int cmd, char* buf, if (desc->state != INET_STATE_OPEN) return ctl_xerror(EXBADPORT, rbuf, rsize); - if (inet_set_faddress(desc->sfamily, &local, buf, &len) == NULL) - return ctl_error(EINVAL, rbuf, rsize); + if ((xerror = inet_set_faddress + (desc->sfamily, &local, &buf, &len)) != NULL) + return ctl_xerror(xerror, rbuf, rsize); if (IS_SOCKET_ERROR(sock_bind(desc->s,(struct sockaddr*) &local, len))) return ctl_error(sock_errno(), rbuf, rsize); - desc->state = INET_STATE_BOUND; + desc->state = INET_STATE_OPEN; - if ((port = inet_address_port(&local)) == 0) { + port = inet_address_port(&local); + if (port == 0) { SOCKLEN_T adrlen = sizeof(local); + sys_memzero((char *) &local, adrlen); sock_name(desc->s, &local.sa, &adrlen); port = inet_address_port(&local); } - port = sock_ntohs(port); - put_int16(port, tbuf); + else if (port == -1) port = 0; + put_int16(sock_ntohs((Uint16) port), tbuf); return ctl_reply(INET_REP_OK, tbuf, 2, rbuf, rsize); } @@ -7845,11 +8688,19 @@ static ErlDrvSSizeT inet_ctl(inet_descriptor* desc, int cmd, char* buf, if (*buf == 1 && !desc->is_ignored) { sock_select(desc, (FD_READ|FD_WRITE|FD_CLOSE|ERL_DRV_USE_NO_CALLBACK), 0); - desc->is_ignored = INET_IGNORE_READ; + if (desc->active) + desc->is_ignored = INET_IGNORE_READ; + else + desc->is_ignored = INET_IGNORE_PASSIVE; } else if (*buf == 0 && desc->is_ignored) { - int flags = (FD_READ|FD_CLOSE|((desc->is_ignored & INET_IGNORE_WRITE)?FD_WRITE:0)); + int flags = FD_CLOSE; + if (desc->is_ignored & INET_IGNORE_READ) + flags |= FD_READ; + if (desc->is_ignored & INET_IGNORE_WRITE) + flags |= FD_WRITE; desc->is_ignored = INET_IGNORE_NONE; - sock_select(desc, flags, 1); + if (flags != FD_CLOSE) + sock_select(desc, flags, 1); } else return ctl_error(EINVAL, rbuf, rsize); @@ -8165,6 +9016,11 @@ static tcp_descriptor* tcp_inet_copy(tcp_descriptor* desc,SOCKET s, copy_desc->low = desc->low; copy_desc->send_timeout = desc->send_timeout; copy_desc->send_timeout_close = desc->send_timeout_close; + + if (desc->tcp_add_flags & TCP_ADDF_SHOW_ECONNRESET) + copy_desc->tcp_add_flags |= TCP_ADDF_SHOW_ECONNRESET; + else + copy_desc->tcp_add_flags &= ~TCP_ADDF_SHOW_ECONNRESET; /* The new port will be linked and connected to the original caller */ port = driver_create_port(port, owner, "tcp_inet", (ErlDrvData) copy_desc); @@ -8182,6 +9038,7 @@ static tcp_descriptor* tcp_inet_copy(tcp_descriptor* desc,SOCKET s, copy_desc->inet.port = port; copy_desc->inet.dport = driver_mk_port(port); + *err = 0; return copy_desc; } @@ -8243,9 +9100,6 @@ static void tcp_inet_stop(ErlDrvData e) inet_stop(INETP(desc)); } - - - /* TCP requests from Erlang */ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, ErlDrvSizeT len, @@ -8266,23 +9120,25 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, case INET_AF_INET6: domain = AF_INET6; break; -#else - case INET_AF_INET6: - return ctl_xerror("eafnosupport", rbuf, rsize); +#endif +#ifdef HAVE_SYS_UN_H + case INET_AF_LOCAL: + domain = AF_UNIX; break; #endif default: - return ctl_error(EINVAL, rbuf, rsize); + return ctl_xerror(str_eafnosupport, rbuf, rsize); } if (buf[1] != INET_TYPE_STREAM) return ctl_error(EINVAL, rbuf, rsize); return inet_ctl_open(INETP(desc), domain, SOCK_STREAM, rbuf, rsize); break; } - case INET_REQ_FDOPEN: { /* pass in an open socket */ + case INET_REQ_FDOPEN: { /* pass in an open (and optionally bound) socket */ int domain; + int bound; DEBUGF(("tcp_inet_ctl(%ld): FDOPEN\r\n", (long)desc->inet.port)); - if (len != 6) return ctl_error(EINVAL, rbuf, rsize); + if (len != 6 && len != 10) return ctl_error(EINVAL, rbuf, rsize); switch(buf[0]) { case INET_AF_INET: domain = AF_INET; @@ -8291,17 +9147,23 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, case INET_AF_INET6: domain = AF_INET6; break; -#else - case INET_AF_INET6: - return ctl_xerror("eafnosupport", rbuf, rsize); +#endif +#ifdef HAVE_SYS_UN_H + case INET_AF_LOCAL: + domain = AF_UNIX; break; #endif default: - return ctl_error(EINVAL, rbuf, rsize); + return ctl_xerror(str_eafnosupport, rbuf, rsize); } if (buf[1] != INET_TYPE_STREAM) return ctl_error(EINVAL, rbuf, rsize); + + if (len == 6) bound = 1; + else bound = get_int32(buf+2+4); + return inet_ctl_fdopen(INETP(desc), domain, SOCK_STREAM, - (SOCKET) get_int32(buf+2), rbuf, rsize); + (SOCKET) get_int32(buf+2), + bound, rbuf, rsize); break; } @@ -8313,8 +9175,6 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, return ctl_xerror(EXBADPORT, rbuf, rsize); if (!IS_OPEN(INETP(desc))) return ctl_xerror(EXBADPORT, rbuf, rsize); - if (!IS_BOUND(INETP(desc))) - return ctl_xerror(EXBADSEQ, rbuf, rsize); if (len != 2) return ctl_error(EINVAL, rbuf, rsize); backlog = get_int16(buf); @@ -8327,7 +9187,7 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, case INET_REQ_CONNECT: { /* do async connect */ int code; - char tbuf[2]; + char tbuf[2], *xerror; unsigned timeout; DEBUGF(("tcp_inet_ctl(%ld): CONNECT\r\n", (long)desc->inet.port)); @@ -8337,8 +9197,6 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, return ctl_xerror(EXBADPORT, rbuf, rsize); if (IS_CONNECTED(INETP(desc))) return ctl_error(EISCONN, rbuf, rsize); - if (!IS_BOUND(INETP(desc))) - return ctl_xerror(EXBADSEQ, rbuf, rsize); if (IS_CONNECTING(INETP(desc))) return ctl_error(EINVAL, rbuf, rsize); if (len < 6) @@ -8346,9 +9204,9 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, timeout = get_int32(buf); buf += 4; len -= 4; - if (inet_set_address(desc->inet.sfamily, &desc->inet.remote, - buf, &len) == NULL) - return ctl_error(EINVAL, rbuf, rsize); + if ((xerror = inet_set_faddress + (desc->inet.sfamily, &desc->inet.remote, &buf, &len)) != NULL) + return ctl_xerror(xerror, rbuf, rsize); code = sock_connect(desc->inet.s, (struct sockaddr*) &desc->inet.remote, len); @@ -8439,6 +9297,7 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, return ctl_reply(INET_REP_OK, tbuf, 2, rbuf, rsize); } else { n = sizeof(desc->inet.remote); + sys_memzero((char *) &remote, n); s = sock_accept(desc->inet.s, (struct sockaddr*) &remote, &n); if (s == INVALID_SOCKET) { if (sock_errno() == ERRNO_BLOCK) { @@ -8460,7 +9319,7 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, ErlDrvTermData caller = driver_caller(desc->inet.port); tcp_descriptor* accept_desc; int err; - + if ((accept_desc = tcp_inet_copy(desc,s,caller,&err)) == NULL) { sock_close(s); return ctl_error(err, rbuf, rsize); @@ -8494,13 +9353,18 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, char tbuf[2]; int n; - DEBUGF(("tcp_inet_ctl(%ld): RECV\r\n", (long)desc->inet.port)); + DEBUGF(("tcp_inet_ctl(%ld): RECV (s=%d)\r\n", + (long)desc->inet.port, desc->inet.s)); /* INPUT: Timeout(4), Length(4) */ if (!IS_CONNECTED(INETP(desc))) { if (desc->tcp_add_flags & TCP_ADDF_DELAYED_CLOSE_RECV) { desc->tcp_add_flags &= ~(TCP_ADDF_DELAYED_CLOSE_RECV| TCP_ADDF_DELAYED_CLOSE_SEND); - return ctl_reply(INET_REP_ERROR, "closed", 6, rbuf, rsize); + if (desc->tcp_add_flags & TCP_ADDF_DELAYED_ECONNRESET) { + desc->tcp_add_flags &= ~TCP_ADDF_DELAYED_ECONNRESET; + return ctl_reply(INET_REP_ERROR, "econnreset", 10, rbuf, rsize); + } else + return ctl_reply(INET_REP_ERROR, "closed", 6, rbuf, rsize); } return ctl_error(ENOTCONN, rbuf, rsize); } @@ -8526,6 +9390,8 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, driver_set_timer(desc->inet.port, timeout); if (!INETP(desc)->is_ignored) sock_select(INETP(desc),(FD_READ|FD_CLOSE),1); + else + INETP(desc)->is_ignored |= INET_IGNORE_READ; } } return ctl_reply(INET_REP_OK, tbuf, 2, rbuf, rsize); @@ -8550,10 +9416,20 @@ static ErlDrvSSizeT tcp_inet_ctl(ErlDrvData e, unsigned int cmd, return ctl_error(EINVAL, rbuf, rsize); } how = buf[0]; - if (sock_shutdown(INETP(desc)->s, how) == 0) { + if (how != TCP_SHUT_RD && driver_sizeq(desc->inet.port) > 0) { + if (how == TCP_SHUT_WR) { + desc->tcp_add_flags |= TCP_ADDF_PENDING_SHUT_WR; + } else if (how == TCP_SHUT_RDWR) { + desc->tcp_add_flags |= TCP_ADDF_PENDING_SHUT_RDWR; + } return ctl_reply(INET_REP_OK, NULL, 0, rbuf, rsize); - } else { + } + if (IS_SOCKET_ERROR(sock_shutdown(INETP(desc)->s, how))) { + if (how != TCP_SHUT_RD) + desc->tcp_add_flags |= TCP_ADDF_SHUTDOWN_WR_DONE; return ctl_error(sock_errno(), rbuf, rsize); + } else { + return ctl_reply(INET_REP_OK, NULL, 0, rbuf, rsize); } } default: @@ -8664,7 +9540,6 @@ static void tcp_inet_command(ErlDrvData e, char *buf, ErlDrvSizeT len) DEBUGF(("tcp_inet_command(%ld) }\r\n", (long)desc->inet.port)); } - static void tcp_inet_commandv(ErlDrvData e, ErlIOVec* ev) { tcp_descriptor* desc = (tcp_descriptor*)e; @@ -8675,11 +9550,19 @@ static void tcp_inet_commandv(ErlDrvData e, ErlIOVec* ev) if (!IS_CONNECTED(INETP(desc))) { if (desc->tcp_add_flags & TCP_ADDF_DELAYED_CLOSE_SEND) { desc->tcp_add_flags &= ~TCP_ADDF_DELAYED_CLOSE_SEND; - inet_reply_error_am(INETP(desc), am_closed); + if (desc->tcp_add_flags & TCP_ADDF_DELAYED_ECONNRESET) { + /* Don't clear flag. Leave it enabled for the next receive + * operation. + */ + inet_reply_error(INETP(desc), ECONNRESET); + } else + inet_reply_error_am(INETP(desc), am_closed); } else inet_reply_error(INETP(desc), ENOTCONN); } + else if (desc->tcp_add_flags & TCP_ADDF_PENDING_SHUTDOWN) + tcp_shutdown_error(desc, EPIPE); else if (tcp_sendv(desc, ev) == 0) inet_reply_ok(INETP(desc)); DEBUGF(("tcp_inet_commandv(%ld) }\r\n", (long)desc->inet.port)); @@ -8692,6 +9575,8 @@ static void tcp_inet_flush(ErlDrvData e) /* Discard send queue to avoid hanging port (OTP-7615) */ tcp_clear_output(desc); } + if (desc->tcp_add_flags & TCP_ADDF_LINGER_ZERO) + tcp_clear_output(desc); } static void tcp_inet_process_exit(ErlDrvData e, ErlDrvMonitor *monitorp) @@ -8846,12 +9731,13 @@ static int tcp_remain(tcp_descriptor* desc, int* len) int n = desc->i_ptr - ptr; /* number of bytes read */ int tlen; - DEBUGF(("tcp_remain(%ld): s=%d, n=%d, nfill=%d nsz=%d\r\n", - (long)desc->inet.port, desc->inet.s, n, nfill, nsz)); - tlen = packet_get_length(desc->inet.htype, ptr, n, desc->inet.psize, desc->i_bufsz, - &desc->http_state); + desc->inet.delimiter, &desc->http_state); + + DEBUGF(("tcp_remain(%ld): s=%d, n=%d, nfill=%d nsz=%d, tlen %d\r\n", + (long)desc->inet.port, desc->inet.s, n, nfill, nsz, tlen)); + if (tlen > 0) { if (tlen <= n) { /* got a packet */ *len = tlen; @@ -9037,7 +9923,10 @@ static int tcp_recv(tcp_descriptor* desc, int request_len) int err = sock_errno(); if (err == ECONNRESET) { DEBUGF((" => detected close (connreset)\r\n")); - return tcp_recv_closed(desc); + if (desc->tcp_add_flags & TCP_ADDF_SHOW_ECONNRESET) + return tcp_recv_error(desc, err); + else + return tcp_recv_closed(desc); } if (err == ERRNO_BLOCK) { DEBUGF((" => would block\r\n")); @@ -9249,7 +10138,19 @@ static void tcp_inet_event(ErlDrvData e, ErlDrvEvent event) if (netEv.lNetworkEvents & FD_CLOSE) { /* error in err = netEv.iErrorCode[FD_CLOSE_BIT] */ DEBUGF(("Detected close in %s, line %d\r\n", __FILE__, __LINE__)); - tcp_recv_closed(desc); + if (desc->tcp_add_flags & TCP_ADDF_SHOW_ECONNRESET) { + err = netEv.iErrorCode[FD_CLOSE_BIT]; + if (err == ECONNRESET) + tcp_recv_error(desc, err); + else if (err == ECONNABORTED && IS_CONNECTED(INETP(desc))) { + /* translate this error to ECONNRESET */ + tcp_recv_error(desc, ECONNRESET); + } + else + tcp_recv_closed(desc); + } + else + tcp_recv_closed(desc); } DEBUGF(("tcp_inet_event(%ld) }\r\n", (long)desc->inet.port)); return; @@ -9259,7 +10160,7 @@ static void tcp_inet_event(ErlDrvData e, ErlDrvEvent event) return; } -#endif /* WIN32 */ +#endif /* __WIN32__ */ /* socket has input: @@ -9280,8 +10181,9 @@ static int tcp_inet_input(tcp_descriptor* desc, HANDLE event) unsigned int len; inet_address remote; inet_async_op *this_op = desc->inet.opt; - + len = sizeof(desc->inet.remote); + sys_memzero((char *) &remote, len); s = sock_accept(desc->inet.s, (struct sockaddr*) &remote, &len); if (s == INVALID_SOCKET && sock_errno() == ERRNO_BLOCK) { /* Just try again, no real error, just a ghost trigger from poll, @@ -9348,8 +10250,8 @@ static int tcp_inet_input(tcp_descriptor* desc, HANDLE event) while (desc->inet.state == INET_STATE_MULTI_ACCEPTING) { len = sizeof(desc->inet.remote); + sys_memzero((char *) &remote, len); s = sock_accept(desc->inet.s, (struct sockaddr*) &remote, &len); - if (s == INVALID_SOCKET && sock_errno() == ERRNO_BLOCK) { /* Just try again, no real error, keep the last return code */ goto done; @@ -9418,8 +10320,11 @@ static int tcp_inet_input(tcp_descriptor* desc, HANDLE event) return ret; } -static int tcp_send_error(tcp_descriptor* desc, int err) +static int tcp_send_or_shutdown_error(tcp_descriptor* desc, int err) { + int show_econnreset = (err == ECONNRESET + && desc->tcp_add_flags & TCP_ADDF_SHOW_ECONNRESET); + /* * If the port is busy, we must do some clean-up before proceeding. */ @@ -9435,14 +10340,21 @@ static int tcp_send_error(tcp_descriptor* desc, int err) /* * We used to handle "expected errors" differently from unexpected ones. - * Now we handle all errors in the same way. We just have to distinguish - * between passive and active sockets. + * Now we handle all errors in the same way (unless the show_econnreset + * socket option is enabled). We just have to distinguish between passive + * and active sockets. */ DEBUGF(("driver_failure_eof(%ld) in %s, line %d\r\n", (long)desc->inet.port, __FILE__, __LINE__)); if (desc->inet.active) { - tcp_closed_message(desc); - inet_reply_error_am(INETP(desc), am_closed); + if (show_econnreset) { + tcp_error_message(desc, err); + tcp_closed_message(desc); + inet_reply_error(INETP(desc), err); + } else { + tcp_closed_message(desc); + inet_reply_error_am(INETP(desc), am_closed); + } if (desc->inet.exitf) driver_exit(desc->inet.port, 0); else @@ -9454,7 +10366,10 @@ static int tcp_send_error(tcp_descriptor* desc, int err) erl_inet_close(INETP(desc)); if (desc->inet.caller) { - inet_reply_error_am(INETP(desc), am_closed); + if (show_econnreset) + inet_reply_error(INETP(desc), err); + else + inet_reply_error_am(INETP(desc), am_closed); } else { /* No blocking send op to reply to right now. @@ -9471,10 +10386,54 @@ static int tcp_send_error(tcp_descriptor* desc, int err) * in the receive operation. */ desc->tcp_add_flags |= TCP_ADDF_DELAYED_CLOSE_RECV; + + if (show_econnreset) { + /* Return {error, econnreset} instead of {error, closed} + * on send or receive operations. + */ + desc->tcp_add_flags |= TCP_ADDF_DELAYED_ECONNRESET; + } } return -1; } +static int tcp_send_error(tcp_descriptor* desc, int err) +{ + /* EPIPE errors usually occur in one of three ways: + * 1. We write to a socket when we've already shutdown() the write side. On + * Windows the error returned for this is ESHUTDOWN rather than EPIPE. + * 2. The TCP peer sends us an RST through no fault of our own (perhaps + * by aborting the connection using SO_LINGER) and we then attempt + * to write to the socket. On Linux and Windows we would actually + * receive an ECONNRESET error for this, but on the BSDs, Darwin, + * Illumos and presumably Solaris, it's an EPIPE. + * 3. We cause the TCP peer to send us an RST by writing to a socket + * after we receive a FIN from them. Our first write will be + * successful, but if the they have closed the connection (rather + * than just shutting down the write side of it) this will cause their + * OS to send us an RST. Then, when we attempt to write to the socket + * a second time, we will get an EPIPE error. On Windows we get an + * ECONNABORTED. + * + * What we are going to do here is to treat all EPIPE messages that aren't + * of type 1 as ECONNRESET errors. This will allow users who have the + * show_econnreset socket option enabled to receive {error, econnreset} on + * both send and recv operations to indicate that an RST has been received. + */ +#ifdef __WIN_32__ + if (err == ECONNABORTED) + err = ECONNRESET; +#endif + if (err == EPIPE && !(desc->tcp_add_flags & TCP_ADDF_SHUTDOWN_WR_DONE)) + err = ECONNRESET; + return tcp_send_or_shutdown_error(desc, err); +} + +static int tcp_shutdown_error(tcp_descriptor* desc, int err) +{ + return tcp_send_or_shutdown_error(desc, err); +} + /* ** Send non-blocking vector data */ @@ -9675,6 +10634,21 @@ static int tcp_send(tcp_descriptor* desc, char* ptr, ErlDrvSizeT len) return 0; } +/* shutdown on the socket: +** Assume caller has confirmed TCP_ADDF_PENDING_SHUTDOWN is set. +*/ +static void tcp_shutdown_async(tcp_descriptor* desc) +{ + int how; + + how = (desc->tcp_add_flags & TCP_ADDF_PENDING_SHUT_WR) ? + TCP_SHUT_WR : TCP_SHUT_RDWR; + if (IS_SOCKET_ERROR(sock_shutdown(INETP(desc)->s, how))) + tcp_shutdown_error(desc, sock_errno()); + else + desc->tcp_add_flags |= TCP_ADDF_SHUTDOWN_WR_DONE; +} + static void tcp_inet_drv_output(ErlDrvData data, ErlDrvEvent event) { (void)tcp_inet_output((tcp_descriptor*)data, (HANDLE)event); @@ -9717,7 +10691,7 @@ static int tcp_inet_output(tcp_descriptor* desc, HANDLE event) (struct sockaddr*) &desc->inet.remote, &sz); if (IS_SOCKET_ERROR(code)) { - desc->inet.state = INET_STATE_BOUND; /* restore state */ + desc->inet.state = INET_STATE_OPEN; /* restore state */ ret = async_error(INETP(desc), sock_errno()); goto done; } @@ -9730,7 +10704,7 @@ static int tcp_inet_output(tcp_descriptor* desc, HANDLE event) (void *)&error, &sz); if ((code < 0) || error) { - desc->inet.state = INET_STATE_BOUND; /* restore state */ + desc->inet.state = INET_STATE_OPEN; /* restore state */ ret = async_error(INETP(desc), error); goto done; } @@ -9752,6 +10726,8 @@ static int tcp_inet_output(tcp_descriptor* desc, HANDLE event) if ((iov = driver_peekq(ix, &vsize)) == NULL) { sock_select(INETP(desc), FD_WRITE, 0); send_empty_out_q_msgs(INETP(desc)); + if (desc->tcp_add_flags & TCP_ADDF_PENDING_SHUTDOWN) + tcp_shutdown_async(desc); goto done; } vsize = vsize > MAX_VSIZE ? MAX_VSIZE : vsize; @@ -9760,8 +10736,8 @@ static int tcp_inet_output(tcp_descriptor* desc, HANDLE event) if (IS_SOCKET_ERROR(sock_sendv(desc->inet.s, iov, vsize, &n, 0))) { write_error: if ((sock_errno() != ERRNO_BLOCK) && (sock_errno() != EINTR)) { - DEBUGF(("tcp_inet_output(%ld): sock_sendv(%d) errno = %d\r\n", - (long)desc->inet.port, vsize, sock_errno())); + DEBUGF(("tcp_inet_output(%ld): sock_sendv(%d) errno = %d (errno %d)\r\n", + (long)desc->inet.port, vsize, sock_errno(), errno)); ret = tcp_send_error(desc, sock_errno()); goto done; } @@ -9918,6 +10894,7 @@ static udp_descriptor* sctp_inet_copy(udp_descriptor* desc, SOCKET s, int* err) +#ifdef HAVE_UDP static int packet_inet_init() { return 0; @@ -9948,6 +10925,7 @@ static ErlDrvData udp_inet_start(ErlDrvPort port, char *args) set_default_msgq_limits(port); return data; } +#endif #ifdef HAVE_SCTP static ErlDrvData sctp_inet_start(ErlDrvPort port, char *args) @@ -9958,6 +10936,7 @@ static ErlDrvData sctp_inet_start(ErlDrvPort port, char *args) } #endif +#ifdef HAVE_UDP static void packet_inet_stop(ErlDrvData e) { /* There should *never* be any "empty out q" subscribers on @@ -10007,13 +10986,12 @@ static ErlDrvSSizeT packet_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, case INET_AF_INET: af = AF_INET; break; #if defined(HAVE_IN6) && defined(AF_INET6) case INET_AF_INET6: af = AF_INET6; break; -#else - case INET_AF_INET6: - return ctl_xerror("eafnosupport", rbuf, rsize); - break; +#endif +#ifdef HAVE_SYS_UN_H + case INET_AF_LOCAL: af = AF_UNIX; break; #endif default: - return ctl_error(EINVAL, rbuf, rsize); + return ctl_xerror(str_eafnosupport, rbuf, rsize); } switch (buf[1]) { case INET_TYPE_STREAM: type = SOCK_STREAM; break; @@ -10046,23 +11024,23 @@ static ErlDrvSSizeT packet_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, return replen; - case INET_REQ_FDOPEN: { /* pass in an open (and bound) socket */ + case INET_REQ_FDOPEN: { /* pass in an open (and optionally bound) socket */ SOCKET s; + int bound; DEBUGF(("packet inet_ctl(%ld): FDOPEN\r\n", (long)desc->port)); - if (len != 6) { + if (len != 6 && len != 10) { return ctl_error(EINVAL, rbuf, rsize); } switch (buf[0]) { case INET_AF_INET: af = AF_INET; break; #if defined(HAVE_IN6) && defined(AF_INET6) case INET_AF_INET6: af = AF_INET6; break; -#else - case INET_AF_INET6: - return ctl_xerror("eafnosupport", rbuf, rsize); - break; +#endif +#ifdef HAVE_SYS_UN_H + case INET_AF_LOCAL: af = AF_UNIX; break; #endif default: - return ctl_error(EINVAL, rbuf, rsize); + return ctl_xerror(str_eafnosupport, rbuf, rsize); } switch (buf[1]) { case INET_TYPE_STREAM: type = SOCK_STREAM; break; @@ -10074,7 +11052,11 @@ static ErlDrvSSizeT packet_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, return ctl_error(EINVAL, rbuf, rsize); } s = (SOCKET)get_int32(buf+2); - replen = inet_ctl_fdopen(desc, af, type, s, rbuf, rsize); + + if (len == 6) bound = 1; + else bound = get_int32(buf+2+4); + + replen = inet_ctl_fdopen(desc, af, type, s, bound, rbuf, rsize); if ((*rbuf)[0] != INET_REP_ERROR) { if (desc->active) @@ -10123,11 +11105,10 @@ static ErlDrvSSizeT packet_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, if (!IS_OPEN(desc)) return ctl_xerror(EXBADPORT, rbuf, rsize); - if (!IS_BOUND(desc)) - return ctl_xerror(EXBADSEQ, rbuf, rsize); #ifdef HAVE_SCTP if (IS_SCTP(desc)) { inet_address remote; + char *xerror; if (IS_CONNECTING(desc)) return ctl_error(EINVAL, rbuf, rsize); @@ -10139,8 +11120,9 @@ static ErlDrvSSizeT packet_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, /* For SCTP, we do not set the peer's addr in desc->remote, as multiple peers are possible: */ - if (inet_set_address(desc->sfamily, &remote, buf, &len) == NULL) - return ctl_error(EINVAL, rbuf, rsize); + if ((xerror = inet_set_faddress + (desc->sfamily, &remote, &buf, &len)) != NULL) + return ctl_xerror(xerror, rbuf, rsize); sock_select(desc, FD_CONNECT, 1); code = sock_connect(desc->s, &remote.sa, len); @@ -10176,12 +11158,13 @@ static ErlDrvSSizeT packet_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, else if (len < 6) return ctl_error(EINVAL, rbuf, rsize); else { + char *xerror; /* Ignore timeout */ buf += 4; len -= 4; - if (inet_set_address(desc->sfamily, - &desc->remote, buf, &len) == NULL) - return ctl_error(EINVAL, rbuf, rsize); + if ((xerror = inet_set_faddress + (desc->sfamily, &desc->remote, &buf, &len)) != NULL) + return ctl_xerror(xerror, rbuf, rsize); code = sock_connect(desc->s, (struct sockaddr*) &desc->remote, len); @@ -10211,8 +11194,6 @@ static ErlDrvSSizeT packet_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, return ctl_xerror(EXBADPORT, rbuf, rsize); if (!IS_OPEN(desc)) return ctl_xerror(EXBADPORT, rbuf, rsize); - if (!IS_BOUND(desc)) - return ctl_xerror(EXBADSEQ, rbuf, rsize); if (len != 2) return ctl_error(EINVAL, rbuf, rsize); @@ -10247,11 +11228,13 @@ static ErlDrvSSizeT packet_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, while (curr < buf+len) { + char *xerror; /* List item format: see "inet_set_faddress": */ ErlDrvSizeT alen = buf + len - curr; - curr = inet_set_faddress(desc->sfamily, &addr, curr, &alen); - if (curr == NULL) - return ctl_error(EINVAL, rbuf, rsize); + xerror = inet_set_faddress + (desc->sfamily, &addr, &curr, &alen); + if (xerror != NULL) + return ctl_xerror(xerror, rbuf, rsize); /* Invoke the call: */ if (p_sctp_bindx(desc->s, (struct sockaddr *)&addr, 1, @@ -10259,7 +11242,7 @@ static ErlDrvSSizeT packet_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, return ctl_error(sock_errno(), rbuf, rsize); } - desc->state = INET_STATE_BOUND; + desc->state = INET_STATE_OPEN; return ctl_reply(INET_REP_OK, NULL, 0, rbuf, rsize); } @@ -10276,8 +11259,6 @@ static ErlDrvSSizeT packet_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, return ctl_xerror(EXBADPORT, rbuf, rsize); if (!IS_OPEN(desc)) return ctl_xerror(EXBADPORT, rbuf, rsize); - if (!IS_BOUND(desc)) - return ctl_xerror(EXBADSEQ, rbuf, rsize); if (! p_sctp_peeloff) return ctl_error(ENOTSUP, rbuf, rsize); @@ -10318,8 +11299,6 @@ static ErlDrvSSizeT packet_inet_ctl(ErlDrvData e, unsigned int cmd, char* buf, /* INPUT: Timeout(4), Length(4) */ if (!IS_OPEN(desc)) return ctl_xerror(EXBADPORT, rbuf, rsize); - if (!IS_BOUND(desc)) - return ctl_error(EINVAL, rbuf, rsize); if (desc->active || (len != 8)) return ctl_error(EINVAL, rbuf, rsize); timeout = get_int32(buf); @@ -10360,12 +11339,12 @@ static void packet_inet_timeout(ErlDrvData e) /* THIS IS A "send*" REQUEST; on the Erlang side: "port_command". -** input should be: P1 P0 Address buffer . +** input should be: Family Address buffer . ** For UDP, buffer (after Address) is just data to be sent. ** For SCTP, buffer contains a list representing 2 items: ** (1) 6 parms for sctp_sndrcvinfo, as in sctp_get_sendparams(); ** (2) 0+ real data bytes. -** There is no destination address -- SCTYP send is performed over +** There is no destination address -- SCTP send is performed over ** an existing association, using "sctp_sndrcvinfo" specified. */ static void packet_inet_command(ErlDrvData e, char* buf, ErlDrvSizeT len) @@ -10374,6 +11353,7 @@ static void packet_inet_command(ErlDrvData e, char* buf, ErlDrvSizeT len) inet_descriptor* desc = INETP(udesc); char* ptr = buf; char* qtr; + char* xerror; ErlDrvSizeT sz; int code; inet_address other; @@ -10384,10 +11364,6 @@ static void packet_inet_command(ErlDrvData e, char* buf, ErlDrvSizeT len) inet_reply_error(desc, EINVAL); return; } - if (!IS_BOUND(desc)) { - inet_reply_error(desc, EINVAL); - return; - } #ifdef HAVE_SCTP if (IS_SCTP(desc)) @@ -10440,9 +11416,10 @@ static void packet_inet_command(ErlDrvData e, char* buf, ErlDrvSizeT len) /* UDP socket. Even if it is connected, there is an address prefix here -- ignored for connected sockets: */ sz = len; - qtr = inet_set_address(desc->sfamily, &other, ptr, &sz); - if (qtr == NULL) { - inet_reply_error(desc, EINVAL); + qtr = ptr; + xerror = inet_set_faddress(desc->sfamily, &other, &qtr, &sz); + if (xerror != NULL) { + inet_reply_error_am(desc, driver_mk_atom(xerror)); return; } len -= (qtr - ptr); @@ -10468,7 +11445,7 @@ static void packet_inet_command(ErlDrvData e, char* buf, ErlDrvSizeT len) else inet_reply_ok(desc); } - +#endif #ifdef __WIN32__ static void packet_inet_event(ErlDrvData e, ErlDrvEvent event) @@ -10490,6 +11467,7 @@ static void packet_inet_event(ErlDrvData e, ErlDrvEvent event) #endif +#ifdef HAVE_UDP static void packet_inet_drv_input(ErlDrvData e, ErlDrvEvent event) { (void) packet_inet_input((udp_descriptor*)e, (HANDLE)event); @@ -10517,6 +11495,8 @@ static int packet_inet_input(udp_descriptor* udesc, HANDLE event) while(packet_count--) { unsigned int len = sizeof(other); + sys_memzero((char *) &other, sizeof(other)); + /* udesc->i_buf is only kept between SCTP fragments */ if (udesc->i_buf == NULL) { udesc->i_bufsz = desc->bufsz + len; @@ -10617,7 +11597,7 @@ static int packet_inet_input(udp_descriptor* udesc, HANDLE event) inet_input_count(desc, n); udesc->i_ptr += n; - inet_get_address(desc->sfamily, abuf, &other, &len); + inet_get_address(abuf, &other, &len); /* Copy formatted address to the buffer allocated; "len" is the actual length which must be <= than the original reserved. This means that the addr + data in the buffer are contiguous, @@ -10712,7 +11692,7 @@ static int packet_inet_output(udp_descriptor* udesc, HANDLE event) (struct sockaddr*) &desc->remote, &sz); if (IS_SOCKET_ERROR(code)) { - desc->state = INET_STATE_BOUND; /* restore state */ + desc->state = INET_STATE_OPEN; /* restore state */ ret = async_error(desc, sock_errno()); goto done; } @@ -10725,7 +11705,7 @@ static int packet_inet_output(udp_descriptor* udesc, HANDLE event) (void *)&error, &sz); if ((code < 0) || error) { - desc->state = INET_STATE_BOUND; /* restore state */ + desc->state = INET_STATE_OPEN; /* restore state */ ret = async_error(desc, error); goto done; } @@ -10746,6 +11726,7 @@ static int packet_inet_output(udp_descriptor* udesc, HANDLE event) DEBUGF(("packet_inet_output(%ld) }\r\n", (long)desc->port)); return ret; } +#endif /*---------------------------------------------------------------------------*/ @@ -10805,115 +11786,18 @@ make_noninheritable_handle(SOCKET s) * Multi-timers */ -static void absolute_timeout(unsigned millis, ErlDrvNowData *out) -{ - unsigned rest; - unsigned long millipart; - unsigned long secpart; - unsigned long megasecpart; - unsigned tmo_secs = (millis / 1000U); - unsigned tmo_millis = (millis % 1000); - driver_get_now(out); - rest = (out->microsecs) % 1000; - millipart = ((out->microsecs) / 1000UL); - if (rest >= 500) { - ++millipart; - } - secpart = out->secs; - megasecpart = out->megasecs; - millipart += tmo_millis; - secpart += (millipart / 1000000UL); - millipart %= 1000000UL; - secpart += tmo_secs; - megasecpart += (secpart / 1000000UL); - secpart %= 1000000UL; - out->megasecs = megasecpart; - out->secs = secpart; - out->microsecs = (millipart * 1000UL); -} - -static unsigned relative_timeout(ErlDrvNowData *in) -{ - ErlDrvNowData now; - unsigned rest; - unsigned long millipart, in_millis, in_secs, in_megasecs; - - driver_get_now(&now); - - in_secs = in->secs; - in_megasecs = in->megasecs; - - rest = (now.microsecs) % 1000; - millipart = ((now.microsecs) / 1000UL); - if (rest >= 500) { - ++millipart; - } - in_millis = ((in->microsecs) / 1000UL); - if ( in_millis < millipart ) { - if (in_secs > 0) { - --in_secs; - } else { - in_secs = (1000000UL - 1UL); - if (in_megasecs <= now.megasecs) { - return 0; - } else { - --in_megasecs; - } - } - in_millis += 1000UL; - } - in_millis -= millipart; - - if (in_secs < now.secs) { - if (in_megasecs <= now.megasecs) { - return 0; - } else { - --in_megasecs; - } - in_secs += 1000000; - } - in_secs -= now.secs; - if (in_megasecs < now.megasecs) { - return 0; - } else { - in_megasecs -= now.megasecs; - } - return (unsigned) ((in_megasecs * 1000000000UL) + - (in_secs * 1000UL) + - in_millis); -} - -#ifdef DEBUG -static int nowcmp(ErlDrvNowData *d1, ErlDrvNowData *d2) -{ - /* Assume it's not safe to do signed conversion on megasecs... */ - if (d1->megasecs < d2->megasecs) { - return -1; - } else if (d1->megasecs > d2->megasecs) { - return 1; - } else if (d1->secs != d2->secs) { - return ((int) d1->secs) - ((int) d2->secs); - } - return ((int) d1->microsecs) - ((int) d2->microsecs); -} -#endif - static void fire_multi_timers(MultiTimerData **first, ErlDrvPort port, ErlDrvData data) { - unsigned next_timeout; + ErlDrvTime next_timeout; if (!*first) { ASSERT(0); return; } #ifdef DEBUG { - ErlDrvNowData chk; - driver_get_now(&chk); - chk.microsecs /= 10000UL; - chk.microsecs *= 10000UL; - chk.microsecs += 10000; - ASSERT(nowcmp(&chk,&((*first)->when)) >= 0); + ErlDrvTime chk = erl_drv_monotonic_time(ERL_DRV_MSEC); + ASSERT(chk >= (*first)->when); } #endif do { @@ -10925,9 +11809,9 @@ static void fire_multi_timers(MultiTimerData **first, ErlDrvPort port, return; } (*first)->prev = NULL; - next_timeout = relative_timeout(&((*first)->when)); - } while (next_timeout == 0); - driver_set_timer(port,next_timeout); + next_timeout = (*first)->when - erl_drv_monotonic_time(ERL_DRV_MSEC); + } while (next_timeout <= 0); + driver_set_timer(port, (unsigned long) next_timeout); } static void clean_multi_timers(MultiTimerData **first, ErlDrvPort port) @@ -10950,8 +11834,10 @@ static void remove_multi_timer(MultiTimerData **first, ErlDrvPort port, MultiTim driver_cancel_timer(port); *first = p->next; if (*first) { - unsigned ntmo = relative_timeout(&((*first)->when)); - driver_set_timer(port,ntmo); + ErlDrvTime ntmo = (*first)->when - erl_drv_monotonic_time(ERL_DRV_MSEC); + if (ntmo < 0) + ntmo = 0; + driver_set_timer(port, (unsigned long) ntmo); } } if (p->next != NULL) { @@ -10967,32 +11853,16 @@ static MultiTimerData *add_multi_timer(MultiTimerData **first, ErlDrvPort port, { MultiTimerData *mtd, *p, *s; mtd = ALLOC(sizeof(MultiTimerData)); - absolute_timeout(timeout, &(mtd->when)); + mtd->when = erl_drv_monotonic_time(ERL_DRV_MSEC) + ((ErlDrvTime) timeout) + 1; mtd->timeout_function = timeout_fun; mtd->caller = caller; mtd->next = mtd->prev = NULL; for(p = *first,s = NULL; p != NULL; s = p, p = p->next) { - if (p->when.megasecs >= mtd->when.megasecs) { - break; - } - } - if (!p || p->when.megasecs > mtd->when.megasecs) { - goto found; - } - for (; p!= NULL; s = p, p = p->next) { - if (p->when.secs >= mtd->when.secs) { + if (p->when >= mtd->when) { break; } } - if (!p || p->when.secs > mtd->when.secs) { - goto found; - } - for (; p!= NULL; s = p, p = p->next) { - if (p->when.microsecs >= mtd->when.microsecs) { - break; - } - } - found: + if (!p) { if (!s) { *first = mtd; @@ -11018,10 +11888,6 @@ static MultiTimerData *add_multi_timer(MultiTimerData **first, ErlDrvPort port, } return mtd; } - - - - /*----------------------------------------------------------------------------- @@ -11139,7 +12005,7 @@ void erts_sock_close(erts_sock_t socket) int erts_sock_connect(erts_sock_t socket, byte *ip_addr, int len, Uint16 port) { SOCKET s = (SOCKET) socket; - char buf[2 + 4]; + char buf[2 + 4], *p; ErlDrvSizeT blen = 6; inet_address addr; @@ -11149,12 +12015,12 @@ int erts_sock_connect(erts_sock_t socket, byte *ip_addr, int len, Uint16 port) put_int16(port, buf); memcpy((void *) (buf + 2), (void *) ip_addr, 4); - if (!inet_set_address(AF_INET, &addr, buf, &blen)) + p = buf; + if (inet_set_address(AF_INET, &addr, &p, &blen) != NULL) return 0; - if (IS_SOCKET_ERROR(sock_connect(s, - (struct sockaddr *) &addr, - sizeof(struct sockaddr_in)))) + if (IS_SOCKET_ERROR + (sock_connect(s, (struct sockaddr *) &addr, blen))) return 0; return 1; } |