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-rw-r--r--crypto/bio/bio_cb.c22
-rw-r--r--crypto/bio/bio_err.c19
-rw-r--r--crypto/bio/bio_lib.c94
-rw-r--r--crypto/bio/bio_meth.c22
-rw-r--r--doc/build.info6
-rw-r--r--doc/man3/BIO_meth_new.pod27
-rw-r--r--doc/man3/BIO_sendmmsg.pod220
-rw-r--r--include/internal/bio.h2
-rw-r--r--include/openssl/bio.h.in58
-rw-r--r--include/openssl/bioerr.h2
-rw-r--r--util/libcrypto.num7
-rw-r--r--util/other.syms5
12 files changed, 476 insertions, 8 deletions
diff --git a/crypto/bio/bio_cb.c b/crypto/bio/bio_cb.c
index 522a05369d..8e4f79ea3c 100644
--- a/crypto/bio/bio_cb.c
+++ b/crypto/bio/bio_cb.c
@@ -24,6 +24,8 @@ long BIO_debug_callback_ex(BIO *bio, int cmd, const char *argp, size_t len,
char *p;
int left;
size_t l = 0;
+ BIO_MMSG_CB_ARGS *args;
+ long ret_ = ret;
if (processed != NULL)
l = *processed;
@@ -69,6 +71,16 @@ long BIO_debug_callback_ex(BIO *bio, int cmd, const char *argp, size_t len,
BIO_snprintf(p, left, "ctrl(%d) - %s\n", argi,
bio->method->name);
break;
+ case BIO_CB_RECVMMSG:
+ args = (BIO_MMSG_CB_ARGS *)argp;
+ BIO_snprintf(p, left, "recvmmsg(%zu) - %s",
+ args->num_msg, bio->method->name);
+ break;
+ case BIO_CB_SENDMMSG:
+ args = (BIO_MMSG_CB_ARGS *)argp;
+ BIO_snprintf(p, left, "sendmmsg(%zu) - %s",
+ args->num_msg, bio->method->name);
+ break;
case BIO_CB_RETURN | BIO_CB_READ:
BIO_snprintf(p, left, "read return %d processed: %zu\n", ret, l);
break;
@@ -84,6 +96,14 @@ long BIO_debug_callback_ex(BIO *bio, int cmd, const char *argp, size_t len,
case BIO_CB_RETURN | BIO_CB_CTRL:
BIO_snprintf(p, left, "ctrl return %d\n", ret);
break;
+ case BIO_CB_RETURN | BIO_CB_RECVMMSG:
+ BIO_snprintf(p, left, "recvmmsg processed: %zu\n", len);
+ ret_ = (long)len;
+ break;
+ case BIO_CB_RETURN | BIO_CB_SENDMMSG:
+ BIO_snprintf(p, left, "sendmmsg processed: %zu\n", len);
+ ret_ = (long)len;
+ break;
default:
BIO_snprintf(p, left, "bio callback - unknown type (%d)\n", cmd);
break;
@@ -96,7 +116,7 @@ long BIO_debug_callback_ex(BIO *bio, int cmd, const char *argp, size_t len,
else
fputs(buf, stderr);
#endif
- return ret;
+ return ret_;
}
#ifndef OPENSSL_NO_DEPRECATED_3_0
diff --git a/crypto/bio/bio_err.c b/crypto/bio/bio_err.c
index 466280b647..87a744ec49 100644
--- a/crypto/bio/bio_err.c
+++ b/crypto/bio/bio_err.c
@@ -75,6 +75,10 @@ static const ERR_STRING_DATA BIO_str_reasons[] = {
{ERR_PACK(ERR_LIB_BIO, 0, BIO_R_WRITE_TO_READ_ONLY_BIO),
"write to read only BIO"},
{ERR_PACK(ERR_LIB_BIO, 0, BIO_R_WSASTARTUP), "WSAStartup"},
+ {ERR_PACK(ERR_LIB_BIO, 0, BIO_R_LOCAL_ADDR_NOT_AVAILABLE),
+ "local address not available"},
+ {ERR_PACK(ERR_LIB_BIO, 0, BIO_R_NON_FATAL),
+ "non-fatal or transient error"},
{0, NULL}
};
@@ -88,3 +92,18 @@ int ossl_err_load_BIO_strings(void)
#endif
return 1;
}
+
+#ifndef OPENSSL_NO_SOCK
+
+int BIO_err_is_non_fatal(unsigned int errcode)
+{
+ if (ERR_SYSTEM_ERROR(errcode))
+ return BIO_sock_non_fatal_error(ERR_GET_REASON(errcode));
+ else if (ERR_GET_LIB(errcode) == ERR_LIB_BIO
+ && ERR_GET_REASON(errcode) == BIO_R_NON_FATAL)
+ return 1;
+ else
+ return 0;
+}
+
+#endif
diff --git a/crypto/bio/bio_lib.c b/crypto/bio/bio_lib.c
index b5454f14b2..f6d40b2d1c 100644
--- a/crypto/bio/bio_lib.c
+++ b/crypto/bio/bio_lib.c
@@ -397,6 +397,100 @@ int BIO_write_ex(BIO *b, const void *data, size_t dlen, size_t *written)
|| (b != NULL && dlen == 0); /* order is important for *written */
}
+int BIO_sendmmsg(BIO *b, BIO_MSG *msg,
+ size_t stride, size_t num_msg, uint64_t flags,
+ size_t *msgs_processed)
+{
+ size_t ret;
+ BIO_MMSG_CB_ARGS args;
+
+ if (b == NULL) {
+ *msgs_processed = 0;
+ ERR_raise(ERR_LIB_BIO, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+
+ if (b->method == NULL || b->method->bsendmmsg == NULL) {
+ *msgs_processed = 0;
+ ERR_raise(ERR_LIB_BIO, BIO_R_UNSUPPORTED_METHOD);
+ return 0;
+ }
+
+ if (HAS_CALLBACK(b)) {
+ args.msg = msg;
+ args.stride = stride;
+ args.num_msg = num_msg;
+ args.flags = flags;
+ args.msgs_processed = msgs_processed;
+
+ ret = (size_t)bio_call_callback(b, BIO_CB_SENDMMSG, (void *)&args,
+ 0, 0, 0, 0, NULL);
+ if (ret == 0)
+ return 0;
+ }
+
+ if (!b->init) {
+ *msgs_processed = 0;
+ ERR_raise(ERR_LIB_BIO, BIO_R_UNINITIALIZED);
+ return 0;
+ }
+
+ ret = b->method->bsendmmsg(b, msg, stride, num_msg, flags, msgs_processed);
+
+ if (HAS_CALLBACK(b))
+ ret = (size_t)bio_call_callback(b, BIO_CB_SENDMMSG | BIO_CB_RETURN,
+ (void *)&args, ret, 0, 0, 0, NULL);
+
+ return ret;
+}
+
+int BIO_recvmmsg(BIO *b, BIO_MSG *msg,
+ size_t stride, size_t num_msg, uint64_t flags,
+ size_t *msgs_processed)
+{
+ size_t ret;
+ BIO_MMSG_CB_ARGS args;
+
+ if (b == NULL) {
+ *msgs_processed = 0;
+ ERR_raise(ERR_LIB_BIO, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+
+ if (b->method == NULL || b->method->brecvmmsg == NULL) {
+ *msgs_processed = 0;
+ ERR_raise(ERR_LIB_BIO, BIO_R_UNSUPPORTED_METHOD);
+ return 0;
+ }
+
+ if (HAS_CALLBACK(b)) {
+ args.msg = msg;
+ args.stride = stride;
+ args.num_msg = num_msg;
+ args.flags = flags;
+ args.msgs_processed = msgs_processed;
+
+ ret = bio_call_callback(b, BIO_CB_RECVMMSG, (void *)&args,
+ 0, 0, 0, 0, NULL);
+ if (ret == 0)
+ return 0;
+ }
+
+ if (!b->init) {
+ *msgs_processed = 0;
+ ERR_raise(ERR_LIB_BIO, BIO_R_UNINITIALIZED);
+ return 0;
+ }
+
+ ret = b->method->brecvmmsg(b, msg, stride, num_msg, flags, msgs_processed);
+
+ if (HAS_CALLBACK(b))
+ ret = (size_t)bio_call_callback(b, BIO_CB_RECVMMSG | BIO_CB_RETURN,
+ (void *)&args, ret, 0, 0, 0, NULL);
+
+ return ret;
+}
+
int BIO_puts(BIO *b, const char *buf)
{
int ret;
diff --git a/crypto/bio/bio_meth.c b/crypto/bio/bio_meth.c
index 469715ba09..3865d82f0e 100644
--- a/crypto/bio/bio_meth.c
+++ b/crypto/bio/bio_meth.c
@@ -218,3 +218,25 @@ int BIO_meth_set_callback_ctrl(BIO_METHOD *biom,
biom->callback_ctrl = callback_ctrl;
return 1;
}
+
+int BIO_meth_set_sendmmsg(BIO_METHOD *biom,
+ int (*bsendmmsg) (BIO *, BIO_MSG *, size_t, size_t, uint64_t, size_t *))
+{
+ biom->bsendmmsg = bsendmmsg;
+ return 1;
+}
+
+int (*BIO_meth_get_sendmmsg(const BIO_METHOD *biom))(BIO *, BIO_MSG *, size_t, size_t, uint64_t, size_t *) {
+ return biom->bsendmmsg;
+}
+
+int BIO_meth_set_recvmmsg(BIO_METHOD *biom,
+ int (*brecvmmsg) (BIO *, BIO_MSG *, size_t, size_t, uint64_t, size_t *))
+{
+ biom->brecvmmsg = brecvmmsg;
+ return 1;
+}
+
+int (*BIO_meth_get_recvmmsg(const BIO_METHOD *biom))(BIO *, BIO_MSG *, size_t, size_t, uint64_t, size_t *) {
+ return biom->brecvmmsg;
+}
diff --git a/doc/build.info b/doc/build.info
index 0977b03023..c029f798ef 100644
--- a/doc/build.info
+++ b/doc/build.info
@@ -671,6 +671,10 @@ DEPEND[html/man3/BIO_s_socket.html]=man3/BIO_s_socket.pod
GENERATE[html/man3/BIO_s_socket.html]=man3/BIO_s_socket.pod
DEPEND[man/man3/BIO_s_socket.3]=man3/BIO_s_socket.pod
GENERATE[man/man3/BIO_s_socket.3]=man3/BIO_s_socket.pod
+DEPEND[html/man3/BIO_sendmmsg.html]=man3/BIO_sendmmsg.pod
+GENERATE[html/man3/BIO_sendmmsg.html]=man3/BIO_sendmmsg.pod
+DEPEND[man/man3/BIO_sendmmsg.3]=man3/BIO_sendmmsg.pod
+GENERATE[man/man3/BIO_sendmmsg.3]=man3/BIO_sendmmsg.pod
DEPEND[html/man3/BIO_set_callback.html]=man3/BIO_set_callback.pod
GENERATE[html/man3/BIO_set_callback.html]=man3/BIO_set_callback.pod
DEPEND[man/man3/BIO_set_callback.3]=man3/BIO_set_callback.pod
@@ -2907,6 +2911,7 @@ html/man3/BIO_s_file.html \
html/man3/BIO_s_mem.html \
html/man3/BIO_s_null.html \
html/man3/BIO_s_socket.html \
+html/man3/BIO_sendmmsg.html \
html/man3/BIO_set_callback.html \
html/man3/BIO_should_retry.html \
html/man3/BIO_socket_wait.html \
@@ -3504,6 +3509,7 @@ man/man3/BIO_s_file.3 \
man/man3/BIO_s_mem.3 \
man/man3/BIO_s_null.3 \
man/man3/BIO_s_socket.3 \
+man/man3/BIO_sendmmsg.3 \
man/man3/BIO_set_callback.3 \
man/man3/BIO_should_retry.3 \
man/man3/BIO_socket_wait.3 \
diff --git a/doc/man3/BIO_meth_new.pod b/doc/man3/BIO_meth_new.pod
index 86301b9718..5be14b2a28 100644
--- a/doc/man3/BIO_meth_new.pod
+++ b/doc/man3/BIO_meth_new.pod
@@ -9,7 +9,8 @@ BIO_meth_set_write, BIO_meth_get_read, BIO_meth_set_read, BIO_meth_get_puts,
BIO_meth_set_puts, BIO_meth_get_gets, BIO_meth_set_gets, BIO_meth_get_ctrl,
BIO_meth_set_ctrl, BIO_meth_get_create, BIO_meth_set_create,
BIO_meth_get_destroy, BIO_meth_set_destroy, BIO_meth_get_callback_ctrl,
-BIO_meth_set_callback_ctrl - Routines to build up BIO methods
+BIO_meth_set_callback_ctrl, BIO_meth_set_sendmmsg, BIO_meth_get_sendmmsg,
+BIO_meth_set_recvmmsg, BIO_meth_get_recvmmsg - Routines to build up BIO methods
=head1 SYNOPSIS
@@ -56,6 +57,25 @@ BIO_meth_set_callback_ctrl - Routines to build up BIO methods
int BIO_meth_set_callback_ctrl(BIO_METHOD *biom,
long (*callback_ctrl)(BIO *, int, BIO_info_cb *));
+ ossl_ssize_t (*BIO_meth_get_sendmmsg(const BIO_METHOD *biom))(BIO *,
+ BIO_MSG *,
+ size_t,
+ size_t,
+ uint64_t);
+ int BIO_meth_set_sendmmsg(BIO_METHOD *biom,
+ ossl_ssize_t (*f) (BIO *, BIO_MSG *, size_t,
+ size_t, uint64_t));
+
+ ossl_ssize_t (*BIO_meth_get_recvmmsg(const BIO_METHOD *biom))(BIO *,
+ BIO_MSG *,
+ size_t,
+ size_t,
+ uint64_t);
+ int BIO_meth_set_recvmmsg(BIO_METHOD *biom,
+ ossl_ssize_t (*f) (BIO *, BIO_MSG *, size_t,
+ size_t, uint64_t));
+
+
=head1 DESCRIPTION
The B<BIO_METHOD> type is a structure used for the implementation of new BIO
@@ -136,6 +156,11 @@ the L<BIO_callback_ctrl(3)> page for more information. This function will be cal
in response to the application calling BIO_callback_ctrl(). The parameters for
the function have the same meaning as for BIO_callback_ctrl().
+BIO_meth_get_sendmmsg(), BIO_meth_set_sendmmsg(), BIO_meth_get_recvmmsg() and
+BIO_meth_set_recvmmsg() get and set the functions used for handling
+BIO_sendmmsg() and BIO_recvmmsg() calls respectively. See L<BIO_sendmmsg(3)> for
+more information.
+
=head1 RETURN VALUES
BIO_get_new_index() returns the new BIO type value or -1 if an error occurred.
diff --git a/doc/man3/BIO_sendmmsg.pod b/doc/man3/BIO_sendmmsg.pod
new file mode 100644
index 0000000000..6940847e22
--- /dev/null
+++ b/doc/man3/BIO_sendmmsg.pod
@@ -0,0 +1,220 @@
+=pod
+
+=head1 NAME
+
+BIO_sendmmsg, BIO_recvmmsg, BIO_dgram_set_local_addr_enable,
+BIO_dgram_get_local_addr_enable, BIO_dgram_get_local_addr_cap,
+BIO_err_is_non_fatal - send and receive multiple datagrams in a single call
+
+=head1 SYNOPSIS
+
+ #include <openssl/bio.h>
+
+ typedef struct bio_msg_st {
+ void *data;
+ size_t data_len;
+ BIO_ADDR *peer, *local;
+ uint64_t flags;
+ } BIO_MSG;
+
+ int BIO_sendmmsg(BIO *b, BIO_MSG *msg,
+ size_t stride, size_t num_msg, uint64_t flags,
+ size_t *msgs_processed);
+ int BIO_recvmmsg(BIO *b, BIO_MSG *msg,
+ size_t stride, size_t num_msg, uint64_t flags,
+ size_t *msgs_processed);
+
+ int BIO_dgram_set_local_addr_enable(BIO *b, int enable);
+ int BIO_dgram_get_local_addr_enable(BIO *b, int *enable);
+ int BIO_dgram_get_local_addr_cap(BIO *b);
+ int BIO_err_is_non_fatal(unsigned int errcode);
+
+=head1 DESCRIPTION
+
+BIO_sendmmsg() and BIO_recvmmsg() functions can be used to send and receive
+multiple messages in a single call to a BIO. They are analagous to sendmmsg(2)
+and recvmmsg(2) on operating systems which provide those functions.
+
+The B<BIO_MSG> structure provides a subset of the functionality of the B<struct
+msghdr> structure defined by POSIX. These functions accept an array of
+B<BIO_MSG> structures. On any particular invocation, these functions may process
+all of the passed structures, some of them, or none of them. This is indicated
+by the value stored in I<*msgs_processed>, which expresses the number of
+messages processed.
+
+The caller should set the I<data> member of a B<BIO_MSG> to a buffer containing
+the data to send, or to be filled with a received message. I<data_len> should be
+set to the size of the buffer in bytes. If the given B<BIO_MSG> is processed (in
+other words, if the integer returned by the function is greater than or equal to
+that B<BIO_MSG>'s array index), I<data_len> will be modified to specify the
+actual amount of data sent or received.
+
+The I<flags> field of a B<BIO_MSG> provides input per-message flags to the
+invocation. If the invocation processes that B<BIO_MSG>, the I<flags> field is
+written with output per-message flags, or zero if no such flags are applicable.
+
+Currently, no input or output per-message flags are defined and this field
+should be set to zero before calling BIO_sendmmsg() or BIO_recvmmsg().
+
+The I<flags> argument to BIO_sendmmsg() and BIO_recvmmsg() provides global
+flags which affect the entire invocation. No global flags are currently
+defined and this argument should be set to zero.
+
+When these functions are used to send and receive datagrams, the I<peer> field
+of a B<BIO_MSG> allows the destination address of sent datagrams to be specified
+on a per-datagram basis, and the source address of received datagrams to be
+determined. The I<peer> field should be set to point to a B<BIO_ADDR>, which
+will be read by BIO_sendmmsg() and used as the destination address for sent
+datagrams, and written by BIO_recvmmsg() with the source address of received
+datagrams.
+
+Similarly, the I<local> field of a B<BIO_MSG> allows the source address of sent
+datagrams to be specified on a per-datagram basis, and the destination address
+of received datagrams to be determined. Unlike I<peer>, support for I<local>
+must be explicitly enabled on a B<BIO> before it can be used; see
+BIO_dgram_set_local_addr_enable(). If I<local> is non-NULL in a B<BIO_MSG> and
+support for I<local> has not been enabled, processing of that B<BIO_MSG> fails.
+
+I<peer> and I<local> should be set to NULL if they are not required. Support for
+I<local> may not be available on all platforms; on these platforms, these
+functions always fail if I<local> is non-NULL.
+
+If I<local> is specified and local address support is enabled, but the operating
+system does not report a local address for a specific received message, the
+B<BIO_ADDR> it points to will be cleared (address family set to C<AF_UNSPEC>).
+This is known to happen on Windows when a packet is received which was sent by
+the local system, regardless of whether the packet's destination address was the
+loopback address or the IP address of a local non-loopback interface. This is
+also known to happen on macOS in some circumstances, such as for packets sent
+before local address support was enabled for a receiving socket. These are
+OS-specific limitations. As such, users of this API using local address support
+should expect to sometimes receive a cleared local B<BIO_ADDR> instead of the
+correct value.
+
+The I<stride> argument must be set to C<sizeof(BIO_MSG)>. This argument
+facilitates backwards compatibility if fields are added to B<BIO_MSG>. Callers
+must zero-initialize B<BIO_MSG>.
+
+I<num_msg> should be sent to the maximum number of messages to send or receive,
+which is also the length of the array pointed to by I<msg>.
+
+I<msgs_processed> must be non-NULL and points to an integer written with the
+number of messages successfully processed; see the RETURN VALUES section for
+further discussion.
+
+Unlike most BIO functions, these functions explicitly support multi-threaded
+use. Multiple concurrent writers and multiple concurrent readers of the same BIO
+are permitted in any combination. As such, these functions do not clear, set, or
+otherwise modify BIO retry flags. The return value must be used to determine
+whether an operation should be retried; see below.
+
+The support for concurrent use extends to BIO_sendmmsg() and BIO_recvmmsg()
+only, and no other function may be called on a given BIO while any call to
+BIO_sendmmsg() or BIO_recvmmsg() is in progress, or vice versa.
+
+BIO_dgram_set_local_addr_enable() and BIO_dgram_get_local_addr_enable() control
+whether local address support is enabled. To enable local address support, call
+BIO_dgram_set_local_addr_enable() with an argument of 1. The call will fail if
+local address support is not available for the platform.
+BIO_dgram_get_local_addr_enable() retrieves the value set by
+BIO_dgram_set_local_addr_enable().
+
+BIO_dgram_get_local_addr_cap() determines if the B<BIO> is capable of supporting
+local addresses.
+
+BIO_err_is_non_fatal() determines if a packed error code represents an error
+which is transient in nature.
+
+=head1 NOTES
+
+Some implementations of the BIO_sendmmsg() and BIO_recvmmsg() BIO methods might
+always process at most one message at a time, for example when OS-level
+functionality to transmit or receive multiple messages at a time is not
+available.
+
+=head1 RETURN VALUES
+
+On success, the functions BIO_sendmmsg() and BIO_recvmmsg() return 1 and write
+the number of messages successfully processed (which need not be nonzero) to
+I<msgs_processed>. Where a positive value n is written to I<msgs_processed>, all
+entries in the B<BIO_MSG> array from 0 through n-1 inclusive have their
+I<data_len> and I<flags> fields updated with the results of the operation on
+that message. If the call was to BIO_recvmmsg() and the I<peer> or I<local>
+fields of that message are non-NULL, the B<BIO_ADDR> structures they point to
+are written with the relevant address.
+
+On failure, the functions BIO_sendmmsg() and BIO_recvmmsg() return 0 and write
+zero to I<msgs_processed>. Thus I<msgs_processed> is always written regardless
+of the outcome of the function call.
+
+If BIO_sendmmsg() and BIO_recvmmsg() fail, they always raise an B<ERR_LIB_BIO>
+error using L<ERR_raise(3)>. Any error may be raised, but the following in
+particular may be noted:
+
+=over 2
+
+=item B<BIO_R_LOCAL_ADDR_NOT_AVAILABLE>
+
+The I<local> field was set to a non-NULL value, but local address support is not
+available or not enabled on the BIO.
+
+=item B<BIO_R_UNSUPPORTED_METHOD>
+
+The BIO_sendmmsg() or BIO_recvmmsg() method is not supported on the BIO.
+
+=item B<BIO_R_NON_FATAL>
+
+The call failed due to a transient, non-fatal error (for example, because the
+BIO is in nonblocking mode and the call would otherwise have blocked).
+
+Implementations of this interface which do not make system calls and thereby
+pass through system error codes using B<ERR_LIB_SYS> (for example, memory-based
+implementations) should issue this reason code to indicate a transient failure.
+However, users of this interface should not test for this reason code directly,
+as there are multiple possible packed error codes representing a transient
+failure; use BIO_err_is_non_fatal() instead (discussed below).
+
+=item Socket errors
+
+OS-level socket errors are reported using an error with library code
+B<ERR_LIB_SYS>; for a packed error code B<errcode> where
+C<ERR_SYSTEM_ERROR(errcode) == 1>, the OS-level socket error code can be
+retrieved using C<ERR_GET_REASON(errcode)>. The packed error code can be
+retrieved by calling L<ERR_peek_last_error(3)> after the call to BIO_sendmmsg()
+or BIO_recvmmsg() returns 0.
+
+=item Non-fatal errors
+
+Whether an error is transient can be determined by passing the packed error code
+to BIO_err_is_non_fatal(). Callers should do this instead of testing the reason
+code directly, as there are many possible error codes which can indicate a
+transient error, many of which are system specific.
+
+=back
+
+BIO_dgram_set_local_addr_enable() returns 1 if local address support was
+successfully enabled or disabled and 0 otherwise.
+
+BIO_dgram_get_local_addr_enable() returns 1 if the local address support enable
+flag was successfully retrieved.
+
+BIO_dgram_get_local_addr_cap() returns 1 if the B<BIO> can support local
+addresses.
+
+BIO_err_is_non_fatal() returns 1 if the passed packed error code represents an
+error which is transient in nature.
+
+=head1 HISTORY
+
+These functions were added in OpenSSL 3.1.
+
+=head1 COPYRIGHT
+
+Copyright 2000-2022 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the Apache License 2.0 (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
diff --git a/include/internal/bio.h b/include/internal/bio.h
index 547a73d02d..40218e1fb0 100644
--- a/include/internal/bio.h
+++ b/include/internal/bio.h
@@ -27,6 +27,8 @@ struct bio_method_st {
int (*create) (BIO *);
int (*destroy) (BIO *);
long (*callback_ctrl) (BIO *, int, BIO_info_cb *);
+ int (*bsendmmsg) (BIO *, BIO_MSG *, size_t, size_t, uint64_t, size_t *);
+ int (*brecvmmsg) (BIO *, BIO_MSG *, size_t, size_t, uint64_t, size_t *);
};
void bio_free_ex_data(BIO *bio);
diff --git a/include/openssl/bio.h.in b/include/openssl/bio.h.in
index 1de1790ba7..2bbfc75714 100644
--- a/include/openssl/bio.h.in
+++ b/include/openssl/bio.h.in
@@ -172,6 +172,10 @@ extern "C" {
# define BIO_CTRL_SET_INDENT 80
# define BIO_CTRL_GET_INDENT 81
+# define BIO_CTRL_DGRAM_GET_LOCAL_ADDR_CAP 82
+# define BIO_CTRL_DGRAM_GET_LOCAL_ADDR_ENABLE 83
+# define BIO_CTRL_DGRAM_SET_LOCAL_ADDR_ENABLE 84
+
# ifndef OPENSSL_NO_KTLS
# define BIO_get_ktls_send(b) \
(BIO_ctrl(b, BIO_CTRL_GET_KTLS_SEND, 0, NULL) > 0)
@@ -257,12 +261,14 @@ void BIO_clear_flags(BIO *b, int flags);
# define BIO_RR_ACCEPT 0x03
/* These are passed by the BIO callback */
-# define BIO_CB_FREE 0x01
-# define BIO_CB_READ 0x02
-# define BIO_CB_WRITE 0x03
-# define BIO_CB_PUTS 0x04
-# define BIO_CB_GETS 0x05
-# define BIO_CB_CTRL 0x06
+# define BIO_CB_FREE 0x01
+# define BIO_CB_READ 0x02
+# define BIO_CB_WRITE 0x03
+# define BIO_CB_PUTS 0x04
+# define BIO_CB_GETS 0x05
+# define BIO_CB_CTRL 0x06
+# define BIO_CB_RECVMMSG 0x07
+# define BIO_CB_SENDMMSG 0x08
/*
* The callback is called before and after the underling operation, The
@@ -339,6 +345,21 @@ struct bio_dgram_sctp_prinfo {
};
# endif
+/* BIO_sendmmsg/BIO_recvmmsg-related definitions */
+typedef struct bio_msg_st {
+ void *data;
+ size_t data_len;
+ BIO_ADDR *peer, *local;
+ uint64_t flags;
+} BIO_MSG;
+
+typedef struct bio_mmsg_cb_args_st {
+ BIO_MSG *msg;
+ size_t stride, num_msg;
+ uint64_t flags;
+ size_t *msgs_processed;
+} BIO_MMSG_CB_ARGS;
+
/*
* #define BIO_CONN_get_param_hostname BIO_ctrl
*/
@@ -580,6 +601,12 @@ int BIO_ctrl_reset_read_request(BIO *b);
(int)BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, (char *)(peer))
# define BIO_dgram_get_mtu_overhead(b) \
(unsigned int)BIO_ctrl((b), BIO_CTRL_DGRAM_GET_MTU_OVERHEAD, 0, NULL)
+# define BIO_dgram_get_local_addr_cap(b) \
+ (int)BIO_ctrl((b), BIO_CTRL_DGRAM_GET_LOCAL_ADDR_CAP, 0, NULL)
+# define BIO_dgram_get_local_addr_enable(b, penable) \
+ (int)BIO_ctrl((b), BIO_CTRL_DGRAM_GET_LOCAL_ADDR_ENABLE, 0, (char *)(penable))
+# define BIO_dgram_set_local_addr_enable(b, enable) \
+ (int)BIO_ctrl((b), BIO_CTRL_DGRAM_SET_LOCAL_ADDR_ENABLE, (enable), NULL)
/* ctrl macros for BIO_f_prefix */
# define BIO_set_prefix(b,p) BIO_ctrl((b), BIO_CTRL_SET_PREFIX, 0, (void *)(p))
@@ -622,10 +649,16 @@ void BIO_vfree(BIO *a);
int BIO_up_ref(BIO *a);
int BIO_read(BIO *b, void *data, int dlen);
int BIO_read_ex(BIO *b, void *data, size_t dlen, size_t *readbytes);
+__owur int BIO_recvmmsg(BIO *b, BIO_MSG *msg,
+ size_t stride, size_t num_msg, uint64_t flags,
+ size_t *msgs_processed);
int BIO_gets(BIO *bp, char *buf, int size);
int BIO_get_line(BIO *bio, char *buf, int size);
int BIO_write(BIO *b, const void *data, int dlen);
int BIO_write_ex(BIO *b, const void *data, size_t dlen, size_t *written);
+__owur int BIO_sendmmsg(BIO *b, BIO_MSG *msg,
+ size_t stride, size_t num_msg, uint64_t flags,
+ size_t *msgs_processed);
int BIO_puts(BIO *bp, const char *buf);
int BIO_indent(BIO *b, int indent, int max);
long BIO_ctrl(BIO *bp, int cmd, long larg, void *parg);
@@ -687,6 +720,7 @@ int BIO_dgram_sctp_msg_waiting(BIO *b);
# ifndef OPENSSL_NO_SOCK
int BIO_sock_should_retry(int i);
int BIO_sock_non_fatal_error(int error);
+int BIO_err_is_non_fatal(unsigned int errcode);
int BIO_socket_wait(int fd, int for_read, time_t max_time);
# endif
int BIO_wait(BIO *bio, time_t max_time, unsigned int nap_milliseconds);
@@ -840,12 +874,24 @@ int BIO_meth_set_write(BIO_METHOD *biom,
int (*write) (BIO *, const char *, int));
int BIO_meth_set_write_ex(BIO_METHOD *biom,
int (*bwrite) (BIO *, const char *, size_t, size_t *));
+int BIO_meth_set_sendmmsg(BIO_METHOD *biom,
+ int (*f) (BIO *, BIO_MSG *, size_t, size_t,
+ uint64_t, size_t *));
+int (*BIO_meth_get_sendmmsg(const BIO_METHOD *biom))(BIO *, BIO_MSG *,
+ size_t, size_t,
+ uint64_t, size_t *);
int (*BIO_meth_get_read(const BIO_METHOD *biom)) (BIO *, char *, int);
int (*BIO_meth_get_read_ex(const BIO_METHOD *biom)) (BIO *, char *, size_t, size_t *);
int BIO_meth_set_read(BIO_METHOD *biom,
int (*read) (BIO *, char *, int));
int BIO_meth_set_read_ex(BIO_METHOD *biom,
int (*bread) (BIO *, char *, size_t, size_t *));
+int BIO_meth_set_recvmmsg(BIO_METHOD *biom,
+ int (*f) (BIO *, BIO_MSG *, size_t, size_t,
+ uint64_t, size_t *));
+int (*BIO_meth_get_recvmmsg(const BIO_METHOD *biom))(BIO *, BIO_MSG *,
+ size_t, size_t,
+ uint64_t, size_t *);
int (*BIO_meth_get_puts(const BIO_METHOD *biom)) (BIO *, const char *);
int BIO_meth_set_puts(BIO_METHOD *biom,
int (*puts) (BIO *, const char *));
diff --git a/include/openssl/bioerr.h b/include/openssl/bioerr.h
index 67a151dd5c..c707d545fa 100644
--- a/include/openssl/bioerr.h
+++ b/include/openssl/bioerr.h
@@ -64,5 +64,7 @@
# define BIO_R_UNSUPPORTED_PROTOCOL_FAMILY 131
# define BIO_R_WRITE_TO_READ_ONLY_BIO 126
# define BIO_R_WSASTARTUP 122
+# define BIO_R_LOCAL_ADDR_NOT_AVAILABLE 148
+# define BIO_R_NON_FATAL 149
#endif
diff --git a/util/libcrypto.num b/util/libcrypto.num
index 6406849f3f..a078f5c549 100644
--- a/util/libcrypto.num
+++ b/util/libcrypto.num
@@ -5448,3 +5448,10 @@ CMS_SignedData_verify ? 3_1_0 EXIST::FUNCTION:CMS
OPENSSL_strcasecmp ? 3_0_3 EXIST::FUNCTION:
OPENSSL_strncasecmp ? 3_0_3 EXIST::FUNCTION:
BIO_s_dgram_mem ? 3_1_0 EXIST::FUNCTION:
+BIO_recvmmsg ? 3_1_0 EXIST::FUNCTION:
+BIO_sendmmsg ? 3_1_0 EXIST::FUNCTION:
+BIO_meth_set_sendmmsg ? 3_1_0 EXIST::FUNCTION:
+BIO_meth_get_sendmmsg ? 3_1_0 EXIST::FUNCTION:
+BIO_meth_set_recvmmsg ? 3_1_0 EXIST::FUNCTION:
+BIO_meth_get_recvmmsg ? 3_1_0 EXIST::FUNCTION:
+BIO_err_is_non_fatal ? 3_1_0 EXIST::FUNCTION:SOCK
diff --git a/util/other.syms b/util/other.syms
index 2fe4b67987..77e2a9e0c6 100644
--- a/util/other.syms
+++ b/util/other.syms
@@ -141,8 +141,13 @@ ASYNC_stack_alloc_fn datatype
ASYNC_stack_free_fn datatype
#
ASN1_BIT_STRING_digest define
+BIO_IS_ERRNO define
+BIO_UNPACK_ERRNO define
BIO_append_filename define
BIO_destroy_bio_pair define
+BIO_dgram_get_local_addr_cap define
+BIO_dgram_get_local_addr_enable define
+BIO_dgram_set_local_addr_enable define
BIO_do_accept define
BIO_do_connect define
BIO_do_handshake define