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comparison channel.h @ 511:582cb38e4eb5 insecure-nocrypto

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propagate from branch 'au.asn.ucc.matt.dropbear' (head cdcc3c729e29544e8b98a408e2dc60e4483dfd2a) to branch 'au.asn.ucc.matt.dropbear.insecure-nocrypto' (head 0ca38a1cf349f7426ac9de34ebe4c3e3735effab)
author Matt Johnston <matt@ucc.asn.au>
date Thu, 06 Nov 2008 13:16:55 +0000
parents 9c61e7af0156
children cf376c696dfc
comparison
equal deleted inserted replaced
361:461c4b1fb35f 511:582cb38e4eb5
43 #define SSH_OPEN_RESOURCE_SHORTAGE 4 43 #define SSH_OPEN_RESOURCE_SHORTAGE 4
44 44
45 /* Not a real type */ 45 /* Not a real type */
46 #define SSH_OPEN_IN_PROGRESS 99 46 #define SSH_OPEN_IN_PROGRESS 99
47 47
48 #define MAX_CHANNELS 100 /* simple mem restriction, includes each tcp/x11
49 connection, so can't be _too_ small */
50
51 #define CHAN_EXTEND_SIZE 3 /* how many extra slots to add when we need more */ 48 #define CHAN_EXTEND_SIZE 3 /* how many extra slots to add when we need more */
52
53 #define RECV_MAXWINDOW 8000 /* tweak */
54 #define RECV_WINDOWEXTEND 1000 /* We send a "window extend" every
55 RECV_WINDOWEXTEND bytes */
56 #define RECV_MAXPACKET RECV_MAXWINDOW /* tweak */
57 49
58 struct ChanType; 50 struct ChanType;
59 51
60 struct Channel { 52 struct Channel {
61 53
71 Doesn't exactly belong here, but is cleaner here */ 63 Doesn't exactly belong here, but is cleaner here */
72 circbuffer *writebuf; /* data from the wire, for local consumption */ 64 circbuffer *writebuf; /* data from the wire, for local consumption */
73 circbuffer *extrabuf; /* extended-data for the program - used like writebuf 65 circbuffer *extrabuf; /* extended-data for the program - used like writebuf
74 but for stderr */ 66 but for stderr */
75 67
76 int sentclosed, recvclosed; 68 /* whether close/eof messages have been exchanged */
77 69 int sent_close, recv_close;
78 /* this is set when we receive/send a channel eof packet */ 70 int recv_eof, sent_eof;
79 int recveof, senteof;
80 71
81 int initconn; /* used for TCP forwarding, whether the channel has been 72 int initconn; /* used for TCP forwarding, whether the channel has been
82 fully initialised */ 73 fully initialised */
83 74
84 int await_open; /* flag indicating whether we've sent an open request 75 int await_open; /* flag indicating whether we've sent an open request
85 for this channel (and are awaiting a confirmation 76 for this channel (and are awaiting a confirmation
86 or failure). */ 77 or failure). */
78
79 int flushing;
87 80
88 const struct ChanType* type; 81 const struct ChanType* type;
89 82
90 }; 83 };
91 84
92 struct ChanType { 85 struct ChanType {
93 86
94 int sepfds; /* Whether this channel has seperate pipes for in/out or not */ 87 int sepfds; /* Whether this channel has seperate pipes for in/out or not */
95 char *name; 88 char *name;
96 int (*inithandler)(struct Channel*); 89 int (*inithandler)(struct Channel*);
97 int (*checkclose)(struct Channel*); 90 int (*check_close)(struct Channel*);
98 void (*reqhandler)(struct Channel*); 91 void (*reqhandler)(struct Channel*);
99 void (*closehandler)(struct Channel*); 92 void (*closehandler)(struct Channel*);
100 93
101 }; 94 };
102 95