BadVPN – Blame information for rev 1
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| 1 | office | 1 | /** |
| 2 | * @file BSSLConnection.h |
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| 3 | * @author Ambroz Bizjak <ambrop7@gmail.com> |
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| 4 | * |
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| 5 | * @section LICENSE |
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| 6 | * |
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| 7 | * Redistribution and use in source and binary forms, with or without |
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| 8 | * modification, are permitted provided that the following conditions are met: |
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| 9 | * 1. Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * 3. Neither the name of the author nor the |
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| 15 | * names of its contributors may be used to endorse or promote products |
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| 16 | * derived from this software without specific prior written permission. |
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| 17 | * |
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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| 19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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| 20 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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| 21 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
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| 22 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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| 23 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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| 24 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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| 25 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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| 27 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 28 | */ |
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| 29 | |||
| 30 | #ifndef BADVPN_BSSLCONNECTION_H |
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| 31 | #define BADVPN_BSSLCONNECTION_H |
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| 32 | |||
| 33 | #include <prio.h> |
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| 34 | #include <nss/ssl.h> |
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| 35 | |||
| 36 | #include <misc/debug.h> |
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| 37 | #include <misc/debugerror.h> |
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| 38 | #include <base/DebugObject.h> |
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| 39 | #include <base/BPending.h> |
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| 40 | #include <base/BMutex.h> |
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| 41 | #include <flow/StreamPassInterface.h> |
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| 42 | #include <flow/StreamRecvInterface.h> |
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| 43 | #include <threadwork/BThreadWork.h> |
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| 44 | |||
| 45 | #define BSSLCONNECTION_EVENT_UP 1 |
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| 46 | #define BSSLCONNECTION_EVENT_ERROR 2 |
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| 47 | |||
| 48 | #define BSSLCONNECTION_BUF_SIZE 4096 |
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| 49 | |||
| 50 | #define BSSLCONNECTION_FLAG_THREADWORK_HANDSHAKE (1 << 0) |
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| 51 | #define BSSLCONNECTION_FLAG_THREADWORK_IO (1 << 1) |
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| 52 | |||
| 53 | typedef void (*BSSLConnection_handler) (void *user, int event); |
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| 54 | |||
| 55 | struct BSSLConnection_backend; |
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| 56 | |||
| 57 | typedef struct { |
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| 58 | PRFileDesc *prfd; |
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| 59 | BPendingGroup *pg; |
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| 60 | void *user; |
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| 61 | BSSLConnection_handler handler; |
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| 62 | struct BSSLConnection_backend *backend; |
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| 63 | int have_error; |
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| 64 | int up; |
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| 65 | BPending init_job; |
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| 66 | StreamPassInterface send_if; |
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| 67 | StreamRecvInterface recv_if; |
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| 68 | BPending recv_job; |
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| 69 | const uint8_t *send_data; |
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| 70 | int send_len; |
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| 71 | uint8_t *recv_data; |
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| 72 | int recv_avail; |
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| 73 | #ifndef NDEBUG |
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| 74 | int user_io_started; |
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| 75 | int releasebuffers_called; |
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| 76 | #endif |
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| 77 | DebugError d_err; |
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| 78 | DebugObject d_obj; |
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| 79 | } BSSLConnection; |
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| 80 | |||
| 81 | struct BSSLConnection_backend { |
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| 82 | StreamPassInterface *send_if; |
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| 83 | StreamRecvInterface *recv_if; |
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| 84 | BThreadWorkDispatcher *twd; |
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| 85 | int flags; |
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| 86 | BSSLConnection *con; |
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| 87 | uint8_t send_buf[BSSLCONNECTION_BUF_SIZE]; |
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| 88 | int send_busy; |
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| 89 | int send_pos; |
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| 90 | int send_len; |
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| 91 | uint8_t recv_buf[BSSLCONNECTION_BUF_SIZE]; |
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| 92 | int recv_busy; |
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| 93 | int recv_pos; |
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| 94 | int recv_len; |
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| 95 | int threadwork_state; |
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| 96 | int threadwork_want_recv; |
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| 97 | int threadwork_want_send; |
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| 98 | BThreadWork threadwork; |
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| 99 | SECStatus threadwork_result_sec; |
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| 100 | PRInt32 threadwork_result_pr; |
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| 101 | PRErrorCode threadwork_error; |
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| 102 | BMutex send_buf_mutex; |
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| 103 | BMutex recv_buf_mutex; |
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| 104 | }; |
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| 105 | |||
| 106 | int BSSLConnection_GlobalInit (void) WARN_UNUSED; |
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| 107 | int BSSLConnection_MakeBackend (PRFileDesc *prfd, StreamPassInterface *send_if, StreamRecvInterface *recv_if, BThreadWorkDispatcher *twd, int flags) WARN_UNUSED; |
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| 108 | |||
| 109 | void BSSLConnection_Init (BSSLConnection *o, PRFileDesc *prfd, int force_handshake, BPendingGroup *pg, void *user, |
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| 110 | BSSLConnection_handler handler); |
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| 111 | void BSSLConnection_Free (BSSLConnection *o); |
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| 112 | void BSSLConnection_ReleaseBuffers (BSSLConnection *o); |
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| 113 | StreamPassInterface * BSSLConnection_GetSendIf (BSSLConnection *o); |
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| 114 | StreamRecvInterface * BSSLConnection_GetRecvIf (BSSLConnection *o); |
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| 115 | |||
| 116 | #endif |