almost fully replaced hooking lib

1 files changed, 404 insertions, 404 deletions

diff --git a/NorthstarDLL/include/internal/ktls.h b/NorthstarDLL/include/internal/ktls.h
index 95492fd0..8fca812f 100644
--- a/NorthstarDLL/include/internal/ktls.h
+++ b/NorthstarDLL/include/internal/ktls.h
@@ -1,404 +1,404 @@
-/*
- * Copyright 2018-2021 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
- * https://www.openssl.org/source/license.html
- */
-
-#if defined(OPENSSL_SYS_LINUX)
-# ifndef OPENSSL_NO_KTLS
-#  include <linux/version.h>
-#  if LINUX_VERSION_CODE < KERNEL_VERSION(4, 13, 0)
-#   define OPENSSL_NO_KTLS
-#   ifndef PEDANTIC
-#    warning "KTLS requires Kernel Headers >= 4.13.0"
-#    warning "Skipping Compilation of KTLS"
-#   endif
-#  endif
-# endif
-#endif
-
-#ifndef HEADER_INTERNAL_KTLS
-# define HEADER_INTERNAL_KTLS
-# pragma once
-
-# ifndef OPENSSL_NO_KTLS
-
-#  if defined(__FreeBSD__)
-#   include <sys/types.h>
-#   include <sys/socket.h>
-#   include <sys/ktls.h>
-#   include <netinet/in.h>
-#   include <netinet/tcp.h>
-#   include <openssl/ssl3.h>
-
-#   ifndef TCP_RXTLS_ENABLE
-#    define OPENSSL_NO_KTLS_RX
-#   endif
-#   define OPENSSL_KTLS_AES_GCM_128
-#   define OPENSSL_KTLS_AES_GCM_256
-#   define OPENSSL_KTLS_TLS13
-
-typedef struct tls_enable ktls_crypto_info_t;
-
-/*
- * FreeBSD does not require any additional steps to enable KTLS before
- * setting keys.
- */
-static ossl_inline int ktls_enable(int fd)
-{
-    return 1;
-}
-
-/*
- * The TCP_TXTLS_ENABLE socket option marks the outgoing socket buffer
- * as using TLS.  If successful, then data sent using this socket will
- * be encrypted and encapsulated in TLS records using the tls_en
- * provided here.
- *
- * The TCP_RXTLS_ENABLE socket option marks the incoming socket buffer
- * as using TLS.  If successful, then data received for this socket will
- * be authenticated and decrypted using the tls_en provided here.
- */
-static ossl_inline int ktls_start(int fd, ktls_crypto_info_t *tls_en, int is_tx)
-{
-    if (is_tx)
-        return setsockopt(fd, IPPROTO_TCP, TCP_TXTLS_ENABLE,
-                          tls_en, sizeof(*tls_en)) ? 0 : 1;
-#   ifndef OPENSSL_NO_KTLS_RX
-    return setsockopt(fd, IPPROTO_TCP, TCP_RXTLS_ENABLE, tls_en,
-                      sizeof(*tls_en)) ? 0 : 1;
-#   else
-    return 0;
-#   endif
-}
-
-/*
- * Send a TLS record using the tls_en provided in ktls_start and use
- * record_type instead of the default SSL3_RT_APPLICATION_DATA.
- * When the socket is non-blocking, then this call either returns EAGAIN or
- * the entire record is pushed to TCP. It is impossible to send a partial
- * record using this control message.
- */
-static ossl_inline int ktls_send_ctrl_message(int fd, unsigned char record_type,
-                                              const void *data, size_t length)
-{
-    struct msghdr msg = { 0 };
-    int cmsg_len = sizeof(record_type);
-    struct cmsghdr *cmsg;
-    char buf[CMSG_SPACE(cmsg_len)];
-    struct iovec msg_iov;   /* Vector of data to send/receive into */
-
-    msg.msg_control = buf;
-    msg.msg_controllen = sizeof(buf);
-    cmsg = CMSG_FIRSTHDR(&msg);
-    cmsg->cmsg_level = IPPROTO_TCP;
-    cmsg->cmsg_type = TLS_SET_RECORD_TYPE;
-    cmsg->cmsg_len = CMSG_LEN(cmsg_len);
-    *((unsigned char *)CMSG_DATA(cmsg)) = record_type;
-    msg.msg_controllen = cmsg->cmsg_len;
-
-    msg_iov.iov_base = (void *)data;
-    msg_iov.iov_len = length;
-    msg.msg_iov = &msg_iov;
-    msg.msg_iovlen = 1;
-
-    return sendmsg(fd, &msg, 0);
-}
-
-#   ifdef OPENSSL_NO_KTLS_RX
-
-static ossl_inline int ktls_read_record(int fd, void *data, size_t length)
-{
-    return -1;
-}
-
-#   else /* !defined(OPENSSL_NO_KTLS_RX) */
-
-/*
- * Receive a TLS record using the tls_en provided in ktls_start.  The
- * kernel strips any explicit IV and authentication tag, but provides
- * the TLS record header via a control message.  If there is an error
- * with the TLS record such as an invalid header, invalid padding, or
- * authentication failure recvmsg() will fail with an error.
- */
-static ossl_inline int ktls_read_record(int fd, void *data, size_t length)
-{
-    struct msghdr msg = { 0 };
-    int cmsg_len = sizeof(struct tls_get_record);
-    struct tls_get_record *tgr;
-    struct cmsghdr *cmsg;
-    char buf[CMSG_SPACE(cmsg_len)];
-    struct iovec msg_iov;   /* Vector of data to send/receive into */
-    int ret;
-    unsigned char *p = data;
-    const size_t prepend_length = SSL3_RT_HEADER_LENGTH;
-
-    if (length <= prepend_length) {
-        errno = EINVAL;
-        return -1;
-    }
-
-    msg.msg_control = buf;
-    msg.msg_controllen = sizeof(buf);
-
-    msg_iov.iov_base = p + prepend_length;
-    msg_iov.iov_len = length - prepend_length;
-    msg.msg_iov = &msg_iov;
-    msg.msg_iovlen = 1;
-
-    ret = recvmsg(fd, &msg, 0);
-    if (ret <= 0)
-        return ret;
-
-    if ((msg.msg_flags & (MSG_EOR | MSG_CTRUNC)) != MSG_EOR) {
-        errno = EMSGSIZE;
-        return -1;
-    }
-
-    if (msg.msg_controllen == 0) {
-        errno = EBADMSG;
-        return -1;
-    }
-
-    cmsg = CMSG_FIRSTHDR(&msg);
-    if (cmsg->cmsg_level != IPPROTO_TCP || cmsg->cmsg_type != TLS_GET_RECORD
-        || cmsg->cmsg_len != CMSG_LEN(cmsg_len)) {
-        errno = EBADMSG;
-        return -1;
-    }
-
-    tgr = (struct tls_get_record *)CMSG_DATA(cmsg);
-    p[0] = tgr->tls_type;
-    p[1] = tgr->tls_vmajor;
-    p[2] = tgr->tls_vminor;
-    *(uint16_t *)(p + 3) = htons(ret);
-
-    return ret + prepend_length;
-}
-
-#   endif /* OPENSSL_NO_KTLS_RX */
-
-/*
- * KTLS enables the sendfile system call to send data from a file over
- * TLS.
- */
-static ossl_inline ossl_ssize_t ktls_sendfile(int s, int fd, off_t off,
-                                              size_t size, int flags)
-{
-    off_t sbytes = 0;
-    int ret;
-
-    ret = sendfile(fd, s, off, size, NULL, &sbytes, flags);
-    if (ret == -1 && sbytes == 0)
-        return -1;
-    return sbytes;
-}
-
-#  endif                         /* __FreeBSD__ */
-
-#  if defined(OPENSSL_SYS_LINUX)
-
-#   include <linux/tls.h>
-#   if LINUX_VERSION_CODE < KERNEL_VERSION(4, 17, 0)
-#    define OPENSSL_NO_KTLS_RX
-#    ifndef PEDANTIC
-#     warning "KTLS requires Kernel Headers >= 4.17.0 for receiving"
-#     warning "Skipping Compilation of KTLS receive data path"
-#    endif
-#   endif
-#   define OPENSSL_KTLS_AES_GCM_128
-#   if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 1, 0)
-#    define OPENSSL_KTLS_AES_GCM_256
-#    define OPENSSL_KTLS_TLS13
-#    if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 2, 0)
-#     define OPENSSL_KTLS_AES_CCM_128
-#     if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 11, 0)
-#      ifndef OPENSSL_NO_CHACHA
-#       define OPENSSL_KTLS_CHACHA20_POLY1305
-#      endif
-#     endif
-#    endif
-#   endif
-
-#   include <sys/sendfile.h>
-#   include <netinet/tcp.h>
-#   include <linux/socket.h>
-#   include <openssl/ssl3.h>
-#   include <openssl/tls1.h>
-#   include <openssl/evp.h>
-
-#   ifndef SOL_TLS
-#    define SOL_TLS 282
-#   endif
-
-#   ifndef TCP_ULP
-#    define TCP_ULP 31
-#   endif
-
-#   ifndef TLS_RX
-#    define TLS_RX                  2
-#   endif
-
-struct tls_crypto_info_all {
-    union {
-#   ifdef OPENSSL_KTLS_AES_GCM_128
-        struct tls12_crypto_info_aes_gcm_128 gcm128;
-#   endif
-#   ifdef OPENSSL_KTLS_AES_GCM_256
-        struct tls12_crypto_info_aes_gcm_256 gcm256;
-#   endif
-#   ifdef OPENSSL_KTLS_AES_CCM_128
-        struct tls12_crypto_info_aes_ccm_128 ccm128;
-#   endif
-#   ifdef OPENSSL_KTLS_CHACHA20_POLY1305
-        struct tls12_crypto_info_chacha20_poly1305 chacha20poly1305;
-#   endif
-    };
-    size_t tls_crypto_info_len;
-};
-
-typedef struct tls_crypto_info_all ktls_crypto_info_t;
-
-/*
- * When successful, this socket option doesn't change the behaviour of the
- * TCP socket, except changing the TCP setsockopt handler to enable the
- * processing of SOL_TLS socket options. All other functionality remains the
- * same.
- */
-static ossl_inline int ktls_enable(int fd)
-{
-    return setsockopt(fd, SOL_TCP, TCP_ULP, "tls", sizeof("tls")) ? 0 : 1;
-}
-
-/*
- * The TLS_TX socket option changes the send/sendmsg handlers of the TCP socket.
- * If successful, then data sent using this socket will be encrypted and
- * encapsulated in TLS records using the crypto_info provided here.
- * The TLS_RX socket option changes the recv/recvmsg handlers of the TCP socket.
- * If successful, then data received using this socket will be decrypted,
- * authenticated and decapsulated using the crypto_info provided here.
- */
-static ossl_inline int ktls_start(int fd, ktls_crypto_info_t *crypto_info,
-                                  int is_tx)
-{
-    return setsockopt(fd, SOL_TLS, is_tx ? TLS_TX : TLS_RX,
-                      crypto_info, crypto_info->tls_crypto_info_len) ? 0 : 1;
-}
-
-/*
- * Send a TLS record using the crypto_info provided in ktls_start and use
- * record_type instead of the default SSL3_RT_APPLICATION_DATA.
- * When the socket is non-blocking, then this call either returns EAGAIN or
- * the entire record is pushed to TCP. It is impossible to send a partial
- * record using this control message.
- */
-static ossl_inline int ktls_send_ctrl_message(int fd, unsigned char record_type,
-                                              const void *data, size_t length)
-{
-    struct msghdr msg;
-    int cmsg_len = sizeof(record_type);
-    struct cmsghdr *cmsg;
-    union {
-        struct cmsghdr hdr;
-        char buf[CMSG_SPACE(sizeof(unsigned char))];
-    } cmsgbuf;
-    struct iovec msg_iov;       /* Vector of data to send/receive into */
-
-    memset(&msg, 0, sizeof(msg));
-    msg.msg_control = cmsgbuf.buf;
-    msg.msg_controllen = sizeof(cmsgbuf.buf);
-    cmsg = CMSG_FIRSTHDR(&msg);
-    cmsg->cmsg_level = SOL_TLS;
-    cmsg->cmsg_type = TLS_SET_RECORD_TYPE;
-    cmsg->cmsg_len = CMSG_LEN(cmsg_len);
-    *((unsigned char *)CMSG_DATA(cmsg)) = record_type;
-    msg.msg_controllen = cmsg->cmsg_len;
-
-    msg_iov.iov_base = (void *)data;
-    msg_iov.iov_len = length;
-    msg.msg_iov = &msg_iov;
-    msg.msg_iovlen = 1;
-
-    return sendmsg(fd, &msg, 0);
-}
-
-/*
- * KTLS enables the sendfile system call to send data from a file over TLS.
- * @flags are ignored on Linux. (placeholder for FreeBSD sendfile)
- * */
-static ossl_inline ossl_ssize_t ktls_sendfile(int s, int fd, off_t off, size_t size, int flags)
-{
-    return sendfile(s, fd, &off, size);
-}
-
-#   ifdef OPENSSL_NO_KTLS_RX
-
-
-static ossl_inline int ktls_read_record(int fd, void *data, size_t length)
-{
-    return -1;
-}
-
-#   else /* !defined(OPENSSL_NO_KTLS_RX) */
-
-/*
- * Receive a TLS record using the crypto_info provided in ktls_start.
- * The kernel strips the TLS record header, IV and authentication tag,
- * returning only the plaintext data or an error on failure.
- * We add the TLS record header here to satisfy routines in rec_layer_s3.c
- */
-static ossl_inline int ktls_read_record(int fd, void *data, size_t length)
-{
-    struct msghdr msg;
-    struct cmsghdr *cmsg;
-    union {
-        struct cmsghdr hdr;
-        char buf[CMSG_SPACE(sizeof(unsigned char))];
-    } cmsgbuf;
-    struct iovec msg_iov;
-    int ret;
-    unsigned char *p = data;
-    const size_t prepend_length = SSL3_RT_HEADER_LENGTH;
-
-    if (length < prepend_length + EVP_GCM_TLS_TAG_LEN) {
-        errno = EINVAL;
-        return -1;
-    }
-
-    memset(&msg, 0, sizeof(msg));
-    msg.msg_control = cmsgbuf.buf;
-    msg.msg_controllen = sizeof(cmsgbuf.buf);
-
-    msg_iov.iov_base = p + prepend_length;
-    msg_iov.iov_len = length - prepend_length - EVP_GCM_TLS_TAG_LEN;
-    msg.msg_iov = &msg_iov;
-    msg.msg_iovlen = 1;
-
-    ret = recvmsg(fd, &msg, 0);
-    if (ret < 0)
-        return ret;
-
-    if (msg.msg_controllen > 0) {
-        cmsg = CMSG_FIRSTHDR(&msg);
-        if (cmsg->cmsg_type == TLS_GET_RECORD_TYPE) {
-            p[0] = *((unsigned char *)CMSG_DATA(cmsg));
-            p[1] = TLS1_2_VERSION_MAJOR;
-            p[2] = TLS1_2_VERSION_MINOR;
-            /* returned length is limited to msg_iov.iov_len above */
-            p[3] = (ret >> 8) & 0xff;
-            p[4] = ret & 0xff;
-            ret += prepend_length;
-        }
-    }
-
-    return ret;
-}
-
-#   endif /* OPENSSL_NO_KTLS_RX */
-
-#  endif /* OPENSSL_SYS_LINUX */
-# endif /* OPENSSL_NO_KTLS */
-#endif /* HEADER_INTERNAL_KTLS */
+/*

+ * Copyright 2018-2021 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

+ * https://www.openssl.org/source/license.html

+ */

+

+#if defined(OPENSSL_SYS_LINUX)

+# ifndef OPENSSL_NO_KTLS

+#  include <linux/version.h>

+#  if LINUX_VERSION_CODE < KERNEL_VERSION(4, 13, 0)

+#   define OPENSSL_NO_KTLS

+#   ifndef PEDANTIC

+#    warning "KTLS requires Kernel Headers >= 4.13.0"

+#    warning "Skipping Compilation of KTLS"

+#   endif

+#  endif

+# endif

+#endif

+

+#ifndef HEADER_INTERNAL_KTLS

+# define HEADER_INTERNAL_KTLS

+# pragma once

+

+# ifndef OPENSSL_NO_KTLS

+

+#  if defined(__FreeBSD__)

+#   include <sys/types.h>

+#   include <sys/socket.h>

+#   include <sys/ktls.h>

+#   include <netinet/in.h>

+#   include <netinet/tcp.h>

+#   include <openssl/ssl3.h>

+

+#   ifndef TCP_RXTLS_ENABLE

+#    define OPENSSL_NO_KTLS_RX

+#   endif

+#   define OPENSSL_KTLS_AES_GCM_128

+#   define OPENSSL_KTLS_AES_GCM_256

+#   define OPENSSL_KTLS_TLS13

+

+typedef struct tls_enable ktls_crypto_info_t;

+

+/*

+ * FreeBSD does not require any additional steps to enable KTLS before

+ * setting keys.

+ */

+static ossl_inline int ktls_enable(int fd)

+{

+    return 1;

+}

+

+/*

+ * The TCP_TXTLS_ENABLE socket option marks the outgoing socket buffer

+ * as using TLS.  If successful, then data sent using this socket will

+ * be encrypted and encapsulated in TLS records using the tls_en

+ * provided here.

+ *

+ * The TCP_RXTLS_ENABLE socket option marks the incoming socket buffer

+ * as using TLS.  If successful, then data received for this socket will

+ * be authenticated and decrypted using the tls_en provided here.

+ */

+static ossl_inline int ktls_start(int fd, ktls_crypto_info_t *tls_en, int is_tx)

+{

+    if (is_tx)

+        return setsockopt(fd, IPPROTO_TCP, TCP_TXTLS_ENABLE,

+                          tls_en, sizeof(*tls_en)) ? 0 : 1;

+#   ifndef OPENSSL_NO_KTLS_RX

+    return setsockopt(fd, IPPROTO_TCP, TCP_RXTLS_ENABLE, tls_en,

+                      sizeof(*tls_en)) ? 0 : 1;

+#   else

+    return 0;

+#   endif

+}

+

+/*

+ * Send a TLS record using the tls_en provided in ktls_start and use

+ * record_type instead of the default SSL3_RT_APPLICATION_DATA.

+ * When the socket is non-blocking, then this call either returns EAGAIN or

+ * the entire record is pushed to TCP. It is impossible to send a partial

+ * record using this control message.

+ */

+static ossl_inline int ktls_send_ctrl_message(int fd, unsigned char record_type,

+                                              const void *data, size_t length)

+{

+    struct msghdr msg = { 0 };

+    int cmsg_len = sizeof(record_type);

+    struct cmsghdr *cmsg;

+    char buf[CMSG_SPACE(cmsg_len)];

+    struct iovec msg_iov;   /* Vector of data to send/receive into */

+

+    msg.msg_control = buf;

+    msg.msg_controllen = sizeof(buf);

+    cmsg = CMSG_FIRSTHDR(&msg);

+    cmsg->cmsg_level = IPPROTO_TCP;

+    cmsg->cmsg_type = TLS_SET_RECORD_TYPE;

+    cmsg->cmsg_len = CMSG_LEN(cmsg_len);

+    *((unsigned char *)CMSG_DATA(cmsg)) = record_type;

+    msg.msg_controllen = cmsg->cmsg_len;

+

+    msg_iov.iov_base = (void *)data;

+    msg_iov.iov_len = length;

+    msg.msg_iov = &msg_iov;

+    msg.msg_iovlen = 1;

+

+    return sendmsg(fd, &msg, 0);

+}

+

+#   ifdef OPENSSL_NO_KTLS_RX

+

+static ossl_inline int ktls_read_record(int fd, void *data, size_t length)

+{

+    return -1;

+}

+

+#   else /* !defined(OPENSSL_NO_KTLS_RX) */

+

+/*

+ * Receive a TLS record using the tls_en provided in ktls_start.  The

+ * kernel strips any explicit IV and authentication tag, but provides

+ * the TLS record header via a control message.  If there is an error

+ * with the TLS record such as an invalid header, invalid padding, or

+ * authentication failure recvmsg() will fail with an error.

+ */

+static ossl_inline int ktls_read_record(int fd, void *data, size_t length)

+{

+    struct msghdr msg = { 0 };

+    int cmsg_len = sizeof(struct tls_get_record);

+    struct tls_get_record *tgr;

+    struct cmsghdr *cmsg;

+    char buf[CMSG_SPACE(cmsg_len)];

+    struct iovec msg_iov;   /* Vector of data to send/receive into */

+    int ret;

+    unsigned char *p = data;

+    const size_t prepend_length = SSL3_RT_HEADER_LENGTH;

+

+    if (length <= prepend_length) {

+        errno = EINVAL;

+        return -1;

+    }

+

+    msg.msg_control = buf;

+    msg.msg_controllen = sizeof(buf);

+

+    msg_iov.iov_base = p + prepend_length;

+    msg_iov.iov_len = length - prepend_length;

+    msg.msg_iov = &msg_iov;

+    msg.msg_iovlen = 1;

+

+    ret = recvmsg(fd, &msg, 0);

+    if (ret <= 0)

+        return ret;

+

+    if ((msg.msg_flags & (MSG_EOR | MSG_CTRUNC)) != MSG_EOR) {

+        errno = EMSGSIZE;

+        return -1;

+    }

+

+    if (msg.msg_controllen == 0) {

+        errno = EBADMSG;

+        return -1;

+    }

+

+    cmsg = CMSG_FIRSTHDR(&msg);

+    if (cmsg->cmsg_level != IPPROTO_TCP || cmsg->cmsg_type != TLS_GET_RECORD

+        || cmsg->cmsg_len != CMSG_LEN(cmsg_len)) {

+        errno = EBADMSG;

+        return -1;

+    }

+

+    tgr = (struct tls_get_record *)CMSG_DATA(cmsg);

+    p[0] = tgr->tls_type;

+    p[1] = tgr->tls_vmajor;

+    p[2] = tgr->tls_vminor;

+    *(uint16_t *)(p + 3) = htons(ret);

+

+    return ret + prepend_length;

+}

+

+#   endif /* OPENSSL_NO_KTLS_RX */

+

+/*

+ * KTLS enables the sendfile system call to send data from a file over

+ * TLS.

+ */

+static ossl_inline ossl_ssize_t ktls_sendfile(int s, int fd, off_t off,

+                                              size_t size, int flags)

+{

+    off_t sbytes = 0;

+    int ret;

+

+    ret = sendfile(fd, s, off, size, NULL, &sbytes, flags);

+    if (ret == -1 && sbytes == 0)

+        return -1;

+    return sbytes;

+}

+

+#  endif                         /* __FreeBSD__ */

+

+#  if defined(OPENSSL_SYS_LINUX)

+

+#   include <linux/tls.h>

+#   if LINUX_VERSION_CODE < KERNEL_VERSION(4, 17, 0)

+#    define OPENSSL_NO_KTLS_RX

+#    ifndef PEDANTIC

+#     warning "KTLS requires Kernel Headers >= 4.17.0 for receiving"

+#     warning "Skipping Compilation of KTLS receive data path"

+#    endif

+#   endif

+#   define OPENSSL_KTLS_AES_GCM_128

+#   if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 1, 0)

+#    define OPENSSL_KTLS_AES_GCM_256

+#    define OPENSSL_KTLS_TLS13

+#    if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 2, 0)

+#     define OPENSSL_KTLS_AES_CCM_128

+#     if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 11, 0)

+#      ifndef OPENSSL_NO_CHACHA

+#       define OPENSSL_KTLS_CHACHA20_POLY1305

+#      endif

+#     endif

+#    endif

+#   endif

+

+#   include <sys/sendfile.h>

+#   include <netinet/tcp.h>

+#   include <linux/socket.h>

+#   include <openssl/ssl3.h>

+#   include <openssl/tls1.h>

+#   include <openssl/evp.h>

+

+#   ifndef SOL_TLS

+#    define SOL_TLS 282

+#   endif

+

+#   ifndef TCP_ULP

+#    define TCP_ULP 31

+#   endif

+

+#   ifndef TLS_RX

+#    define TLS_RX                  2

+#   endif

+

+struct tls_crypto_info_all {

+    union {

+#   ifdef OPENSSL_KTLS_AES_GCM_128

+        struct tls12_crypto_info_aes_gcm_128 gcm128;

+#   endif

+#   ifdef OPENSSL_KTLS_AES_GCM_256

+        struct tls12_crypto_info_aes_gcm_256 gcm256;

+#   endif

+#   ifdef OPENSSL_KTLS_AES_CCM_128

+        struct tls12_crypto_info_aes_ccm_128 ccm128;

+#   endif

+#   ifdef OPENSSL_KTLS_CHACHA20_POLY1305

+        struct tls12_crypto_info_chacha20_poly1305 chacha20poly1305;

+#   endif

+    };

+    size_t tls_crypto_info_len;

+};

+

+typedef struct tls_crypto_info_all ktls_crypto_info_t;

+

+/*

+ * When successful, this socket option doesn't change the behaviour of the

+ * TCP socket, except changing the TCP setsockopt handler to enable the

+ * processing of SOL_TLS socket options. All other functionality remains the

+ * same.

+ */

+static ossl_inline int ktls_enable(int fd)

+{

+    return setsockopt(fd, SOL_TCP, TCP_ULP, "tls", sizeof("tls")) ? 0 : 1;

+}

+

+/*

+ * The TLS_TX socket option changes the send/sendmsg handlers of the TCP socket.

+ * If successful, then data sent using this socket will be encrypted and

+ * encapsulated in TLS records using the crypto_info provided here.

+ * The TLS_RX socket option changes the recv/recvmsg handlers of the TCP socket.

+ * If successful, then data received using this socket will be decrypted,

+ * authenticated and decapsulated using the crypto_info provided here.

+ */

+static ossl_inline int ktls_start(int fd, ktls_crypto_info_t *crypto_info,

+                                  int is_tx)

+{

+    return setsockopt(fd, SOL_TLS, is_tx ? TLS_TX : TLS_RX,

+                      crypto_info, crypto_info->tls_crypto_info_len) ? 0 : 1;

+}

+

+/*

+ * Send a TLS record using the crypto_info provided in ktls_start and use

+ * record_type instead of the default SSL3_RT_APPLICATION_DATA.

+ * When the socket is non-blocking, then this call either returns EAGAIN or

+ * the entire record is pushed to TCP. It is impossible to send a partial

+ * record using this control message.

+ */

+static ossl_inline int ktls_send_ctrl_message(int fd, unsigned char record_type,

+                                              const void *data, size_t length)

+{

+    struct msghdr msg;

+    int cmsg_len = sizeof(record_type);

+    struct cmsghdr *cmsg;

+    union {

+        struct cmsghdr hdr;

+        char buf[CMSG_SPACE(sizeof(unsigned char))];

+    } cmsgbuf;

+    struct iovec msg_iov;       /* Vector of data to send/receive into */

+

+    memset(&msg, 0, sizeof(msg));

+    msg.msg_control = cmsgbuf.buf;

+    msg.msg_controllen = sizeof(cmsgbuf.buf);

+    cmsg = CMSG_FIRSTHDR(&msg);

+    cmsg->cmsg_level = SOL_TLS;

+    cmsg->cmsg_type = TLS_SET_RECORD_TYPE;

+    cmsg->cmsg_len = CMSG_LEN(cmsg_len);

+    *((unsigned char *)CMSG_DATA(cmsg)) = record_type;

+    msg.msg_controllen = cmsg->cmsg_len;

+

+    msg_iov.iov_base = (void *)data;

+    msg_iov.iov_len = length;

+    msg.msg_iov = &msg_iov;

+    msg.msg_iovlen = 1;

+

+    return sendmsg(fd, &msg, 0);

+}

+

+/*

+ * KTLS enables the sendfile system call to send data from a file over TLS.

+ * @flags are ignored on Linux. (placeholder for FreeBSD sendfile)

+ * */

+static ossl_inline ossl_ssize_t ktls_sendfile(int s, int fd, off_t off, size_t size, int flags)

+{

+    return sendfile(s, fd, &off, size);

+}

+

+#   ifdef OPENSSL_NO_KTLS_RX

+

+

+static ossl_inline int ktls_read_record(int fd, void *data, size_t length)

+{

+    return -1;

+}

+

+#   else /* !defined(OPENSSL_NO_KTLS_RX) */

+

+/*

+ * Receive a TLS record using the crypto_info provided in ktls_start.

+ * The kernel strips the TLS record header, IV and authentication tag,

+ * returning only the plaintext data or an error on failure.

+ * We add the TLS record header here to satisfy routines in rec_layer_s3.c

+ */

+static ossl_inline int ktls_read_record(int fd, void *data, size_t length)

+{

+    struct msghdr msg;

+    struct cmsghdr *cmsg;

+    union {

+        struct cmsghdr hdr;

+        char buf[CMSG_SPACE(sizeof(unsigned char))];

+    } cmsgbuf;

+    struct iovec msg_iov;

+    int ret;

+    unsigned char *p = data;

+    const size_t prepend_length = SSL3_RT_HEADER_LENGTH;

+

+    if (length < prepend_length + EVP_GCM_TLS_TAG_LEN) {

+        errno = EINVAL;

+        return -1;

+    }

+

+    memset(&msg, 0, sizeof(msg));

+    msg.msg_control = cmsgbuf.buf;

+    msg.msg_controllen = sizeof(cmsgbuf.buf);

+

+    msg_iov.iov_base = p + prepend_length;

+    msg_iov.iov_len = length - prepend_length - EVP_GCM_TLS_TAG_LEN;

+    msg.msg_iov = &msg_iov;

+    msg.msg_iovlen = 1;

+

+    ret = recvmsg(fd, &msg, 0);

+    if (ret < 0)

+        return ret;

+

+    if (msg.msg_controllen > 0) {

+        cmsg = CMSG_FIRSTHDR(&msg);

+        if (cmsg->cmsg_type == TLS_GET_RECORD_TYPE) {

+            p[0] = *((unsigned char *)CMSG_DATA(cmsg));

+            p[1] = TLS1_2_VERSION_MAJOR;

+            p[2] = TLS1_2_VERSION_MINOR;

+            /* returned length is limited to msg_iov.iov_len above */

+            p[3] = (ret >> 8) & 0xff;

+            p[4] = ret & 0xff;

+            ret += prepend_length;

+        }

+    }

+

+    return ret;

+}

+

+#   endif /* OPENSSL_NO_KTLS_RX */

+

+#  endif /* OPENSSL_SYS_LINUX */

+# endif /* OPENSSL_NO_KTLS */

+#endif /* HEADER_INTERNAL_KTLS */