87 lines
2.6 KiB
PHP
87 lines
2.6 KiB
PHP
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; sshlib_channel.inc - SSH channel
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;
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; Copyright (C) 2016-2021 Jeffrey Amelynck
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;
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; This program is free software: you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation, either version 3 of the License, or
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; (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License
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; along with this program. If not, see <http://www.gnu.org/licenses/>.
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proc sshlib_chan_open con_ptr; Channel struct ptr?!
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; >> Open channel
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DEBUGF 2, "SSH: Open channel\n"
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mov [ssh_chan.rcv_wnd], BUFFERSIZE
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mov [ssh_chan.snd_wnd], 0
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stdcall sshlib_send_packet, [con_ptr], ssh_msg_channel_open, ssh_msg_channel_open.length, 0
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cmp eax, 0
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jl .err
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; << Check for channel open confirmation
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stdcall sshlib_msg_handler, [con_ptr], 0
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cmp eax, 0
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jl .err
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mov esi, [con_ptr]
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cmp [esi + sshlib_connection.rx_buffer.message_code], SSH_MSG_CHANNEL_OPEN_CONFIRMATION
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jne .err_proto
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; >> Channel request: pty
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DEBUGF 2, "SSH: Request pty\n"
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stdcall sshlib_send_packet, [con_ptr], ssh_msg_channel_request, ssh_msg_channel_request.length, 0
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cmp eax, 0
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jl .err
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; << Check for channel request confirmation
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stdcall sshlib_msg_handler, [con_ptr], 0
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cmp eax, 0
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jl .err
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mov esi, [con_ptr]
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cmp [esi + sshlib_connection.rx_buffer.message_code], SSH_MSG_CHANNEL_SUCCESS
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jne .err_proto
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; >> Channel request: shell
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DEBUGF 2, "SSH: Request shell\n"
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stdcall sshlib_send_packet, [con_ptr], ssh_msg_shell_request, ssh_msg_shell_request.length, 0
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cmp eax, 0
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jl .err
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; << Check for channel request confirmation
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; TODO: timeout
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.wait_success:
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stdcall sshlib_msg_handler, [con_ptr], 0
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cmp eax, 0
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jl .err
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mov esi, [con_ptr]
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cmp [esi + sshlib_connection.rx_buffer.message_code], SSH_MSG_CHANNEL_SUCCESS
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jne .wait_success
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xor eax, eax
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.err:
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ret
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.err_proto:
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mov eax, SSHLIB_ERR_PROTOCOL
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ret
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endp
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