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adding scp v1 first code, fixed passwd auth for disabled password
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ilsimo
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Nov 24, 2006
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,249 @@ | ||
| /* | ||
| This program is free software; you can redistribute it and/or modify | ||
| it under the terms of the GNU General Public License as published by | ||
| the Free Software Foundation; either version 2 of the License, or | ||
| (at your option) any later version. | ||
| This program is distributed in the hope that it will be useful, | ||
| but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| GNU General Public License for more details. | ||
| You should have received a copy of the GNU General Public License | ||
| along with this program; if not, write to the Free Software | ||
| Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| xrdp: A Remote Desktop Protocol server. | ||
| Copyright (C) Jay Sorg 2005-2006 | ||
| */ | ||
|
|
||
| /** | ||
| * | ||
| * @file libscp_v1c.c | ||
| * @brief libscp version 1 client api code | ||
| * @author Simone Fedele | ||
| * | ||
| */ | ||
|
|
||
| #include "libscp_v1c.h" | ||
|
|
||
| static enum SCP_CLIENT_STATES_E _scp_v1c_check_response(struct SCP_CONNECTION* c, struct SCP_SESSION* s); | ||
|
|
||
| /* client API */ | ||
| /* 001 */ | ||
| enum SCP_CLIENT_STATES_E scp_v1c_connect(struct SCP_CONNECTION* c, struct SCP_SESSION* s) | ||
| { | ||
| unsigned char sz; | ||
| uint32_t size; | ||
| //uint32_t version; | ||
| //uint16_t cmd; | ||
| //uint16_t dim; | ||
|
|
||
| init_stream(c->out_s, c->out_s->size); | ||
| init_stream(c->in_s, c->in_s->size); | ||
|
|
||
| size=19+17+4+ g_strlen(s->hostname) + g_strlen(s->username) + g_strlen(s->password); | ||
| if (s->addr_type==SCP_ADDRESS_TYPE_IPV4) | ||
| { | ||
| size=size+4; | ||
| } | ||
| else | ||
| { | ||
| size=size+16; | ||
| } | ||
|
|
||
| /* sending request */ | ||
|
|
||
| /* header */ | ||
| out_uint32_be(c->out_s, 1); /* version */ | ||
| out_uint32_be(c->out_s, size); | ||
| out_uint16_be(c->out_s, SCP_COMMAND_SET_DEFAULT); | ||
| out_uint16_be(c->out_s, 1); | ||
|
|
||
| /* body */ | ||
| out_uint8(c->out_s, s->type); | ||
| out_uint16_be(c->out_s, s->height); | ||
| out_uint16_be(c->out_s, s->width); | ||
| out_uint8(c->out_s, s->bpp); | ||
| out_uint8(c->out_s, s->rsr); | ||
| out_uint8p(c->out_s, s->locale, 17); | ||
| out_uint8(c->out_s, s->addr_type); | ||
|
|
||
| if (s->addr_type==SCP_ADDRESS_TYPE_IPV4) | ||
| { | ||
| out_uint32_be(c->out_s, s->ipv4addr); | ||
| } | ||
| else | ||
| { | ||
| #warning ipv6 address needed | ||
| } | ||
|
|
||
| sz=g_strlen(s->hostname); | ||
| out_uint8(c->out_s, sz); | ||
| out_uint8p(c->out_s, s->hostname, sz); | ||
| sz=g_strlen(s->username); | ||
| out_uint8(c->out_s, sz); | ||
| out_uint8p(c->out_s, s->username, sz); | ||
| sz=g_strlen(s->password); | ||
| out_uint8(c->out_s, sz); | ||
| out_uint8p(c->out_s, s->password, sz); | ||
|
|
||
| if (0!=tcp_force_send(c->in_sck, c->out_s->data, size)) | ||
| { | ||
| return SCP_CLIENT_STATE_NETWORK_ERR; | ||
| } | ||
|
|
||
| /* wait for response */ | ||
| return _scp_v1c_check_response(c, s); | ||
| } | ||
|
|
||
| /* 004 */ | ||
| enum SCP_CLIENT_STATES_E scp_v1c_resend_credentials(struct SCP_CONNECTION* c, struct SCP_SESSION* s) | ||
| { | ||
| unsigned char sz; | ||
| uint32_t size; | ||
| //uint32_t version; | ||
| //uint16_t cmd; | ||
| //uint16_t dim; | ||
|
|
||
| init_stream(c->out_s, c->out_s->size); | ||
| init_stream(c->in_s, c->in_s->size); | ||
|
|
||
| size=12+2+g_strlen(s->username)+g_strlen(s->password); | ||
|
|
||
| /* sending request */ | ||
| /* header */ | ||
| out_uint32_be(c->out_s, 1); /* version */ | ||
| out_uint32_be(c->out_s, size); | ||
| out_uint16_be(c->out_s, SCP_COMMAND_SET_DEFAULT); | ||
| out_uint16_be(c->out_s, 4); | ||
|
|
||
| /* body */ | ||
| sz=g_strlen(s->username); | ||
| out_uint8(c->out_s, sz); | ||
| out_uint8p(c->out_s, s->username, sz); | ||
| sz=g_strlen(s->password); | ||
| out_uint8(c->out_s, sz); | ||
| out_uint8p(c->out_s, s->password, sz); | ||
|
|
||
| if (0!=tcp_force_send(c->in_sck, c->out_s->data, size)) | ||
| { | ||
| return SCP_CLIENT_STATE_NETWORK_ERR; | ||
| } | ||
|
|
||
| /* wait for response */ | ||
| return _scp_v1c_check_response(c, s); | ||
| } | ||
|
|
||
| /* 021 */ enum SCP_CLIENT_STATES_E scp_v1c_pwd_change(struct SCP_CONNECTION* c, char* newpass); | ||
| /* 022 */ enum SCP_CLIENT_STATES_E scp_v1c_pwd_change_cancel(struct SCP_CONNECTION* c); | ||
|
|
||
| /* ... */ enum SCP_CLIENT_STATES_E scp_v1c_get_session_list(struct SCP_CONNECTION* c, int* scount, struct SCP_DISCONNECTED_SESSION** s); | ||
| /* 041 */ enum SCP_CLIENT_STATES_E scp_v1c_select_session(struct SCP_CONNECTION* c, SCP_SID sid); | ||
| /* 042 */ enum SCP_CLIENT_STATES_E scp_v1c_select_session_cancel(struct SCP_CONNECTION* c); | ||
|
|
||
| /* 03x */ enum SCP_CLIENT_STATES_E scp_v1c_retrieve_session(struct SCP_CONNECTION* c, struct SCP_SESSION* s, struct SCP_DISCONNECTED_SESSION* ds); | ||
|
|
||
| static enum SCP_CLIENT_STATES_E _scp_v1c_check_response(struct SCP_CONNECTION* c, struct SCP_SESSION* s) | ||
| { | ||
| uint32_t version; | ||
| uint32_t size; | ||
| uint16_t cmd; | ||
| uint16_t dim; | ||
|
|
||
| init_stream(c->in_s, c->in_s->size); | ||
| if (0!=tcp_force_recv(c->in_sck, c->in_s->data, 8)) | ||
| { | ||
| return SCP_CLIENT_STATE_NETWORK_ERR; | ||
| } | ||
|
|
||
| in_uint32_be(c->in_s, version); | ||
| if (version!=1) | ||
| { | ||
| return SCP_CLIENT_STATE_VERSION_ERR; | ||
| } | ||
|
|
||
| in_uint32_be(c->in_s, size); | ||
|
|
||
| init_stream(c->in_s, c->in_s->size); | ||
| /* read the rest of the packet */ | ||
| if (0!=tcp_force_recv(c->in_sck, c->in_s->data, size-8)) | ||
| { | ||
| return SCP_CLIENT_STATE_NETWORK_ERR; | ||
| } | ||
|
|
||
| in_uint16_be(c->in_s, cmd); | ||
| if (cmd!=SCP_COMMAND_SET_DEFAULT) | ||
| { | ||
| return SCP_CLIENT_STATE_SEQUENCE_ERR; | ||
| } | ||
|
|
||
| in_uint16_be(c->in_s, cmd) | ||
| if (cmd==2) /* connection denied */ | ||
| { | ||
| in_uint16_be(c->in_s, dim); | ||
| if (s->errstr!=0) | ||
| { | ||
| g_free(s->errstr); | ||
| } | ||
| s->errstr=g_malloc(dim+1,0); | ||
| if (s->errstr==0) | ||
| { | ||
| return SCP_CLIENT_STATE_INTERNAL_ERR; | ||
| } | ||
| in_uint8a(c->in_s, s->errstr, dim); | ||
| (s->errstr)[dim]='\0'; | ||
|
|
||
| return SCP_CLIENT_STATE_CONNECTION_DENIED; | ||
| } | ||
| else if (cmd==3) /* resend usr/pwd */ | ||
| { | ||
| in_uint16_be(c->in_s, dim); | ||
| if (s->errstr!=0) | ||
| { | ||
| g_free(s->errstr); | ||
| } | ||
| s->errstr=g_malloc(dim+1,0); | ||
| if (s->errstr==0) | ||
| { | ||
| return SCP_CLIENT_STATE_INTERNAL_ERR; | ||
| } | ||
| in_uint8a(c->in_s, s->errstr, dim); | ||
| (s->errstr)[dim]='\0'; | ||
|
|
||
| return SCP_CLIENT_STATE_RESEND_CREDENTIALS; | ||
| } | ||
| else if (cmd==20) /* password change */ | ||
| { | ||
| in_uint16_be(c->in_s, dim); | ||
| if (s->errstr!=0) | ||
| { | ||
| g_free(s->errstr); | ||
| } | ||
| s->errstr=g_malloc(dim+1,0); | ||
| if (s->errstr==0) | ||
| { | ||
| return SCP_CLIENT_STATE_INTERNAL_ERR; | ||
| } | ||
| in_uint8a(c->in_s, s->errstr, dim); | ||
| (s->errstr)[dim]='\0'; | ||
|
|
||
| return SCP_CLIENT_STATE_PWD_CHANGE_REQ; | ||
| } | ||
| else if (cmd==30) /* display */ | ||
| { | ||
| in_uint16_be(c->in_s, s->display); | ||
|
|
||
| return SCP_CLIENT_STATE_OK; | ||
| } | ||
| else if (cmd==32) /* display of a disconnected session */ | ||
| { | ||
| return SCP_CLIENT_STATE_RECONNECT; | ||
| } | ||
| else if (cmd==40) /* session list */ | ||
| { | ||
| return SCP_CLIENT_STATE_SESSION_LIST; | ||
| } | ||
|
|
||
| return SCP_CLIENT_STATE_SEQUENCE_ERR; | ||
| } |
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