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https://git.tartarus.org/simon/putty.git
synced 2025-01-09 09:27:59 +00:00
5d718ef64b
The number of people has been steadily increasing who read our source
code with an editor that thinks tab stops are 4 spaces apart, as
opposed to the traditional tty-derived 8 that the PuTTY code expects.
So I've been wondering for ages about just fixing it, and switching to
a spaces-only policy throughout the code. And I recently found out
about 'git blame -w', which should make this change not too disruptive
for the purposes of source-control archaeology; so perhaps now is the
time.
While I'm at it, I've also taken the opportunity to remove all the
trailing spaces from source lines (on the basis that git dislikes
them, and is the only thing that seems to have a strong opinion one
way or the other).
Apologies to anyone downstream of this code who has complicated patch
sets to rebase past this change. I don't intend it to be needed again.
128 lines
4.1 KiB
C
128 lines
4.1 KiB
C
struct ssh1_channel;
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struct outstanding_succfail;
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struct ssh1_connection_state {
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int crState;
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Ssh *ssh;
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Conf *conf;
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int local_protoflags, remote_protoflags;
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tree234 *channels; /* indexed by local id */
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/* In SSH-1, the main session doesn't take the form of a 'channel'
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* according to the wire protocol. But we want to use the same API
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* for it, so we define an SshChannel here - but one that uses a
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* separate vtable from the usual one, so it doesn't map to a
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* struct ssh1_channel as all the others do. */
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SshChannel mainchan_sc;
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Channel *mainchan_chan; /* the other end of mainchan_sc */
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mainchan *mainchan; /* and its subtype */
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bool got_pty;
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bool ldisc_opts[LD_N_OPTIONS];
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bool stdout_throttling;
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bool want_user_input;
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bool session_terminated;
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int term_width, term_height, term_width_orig, term_height_orig;
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bool X11_fwd_enabled;
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struct X11Display *x11disp;
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struct X11FakeAuth *x11auth;
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tree234 *x11authtree;
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bool agent_fwd_enabled;
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tree234 *rportfwds;
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PortFwdManager *portfwdmgr;
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bool portfwdmgr_configured;
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bool finished_setup;
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/*
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* These store the list of requests that we're waiting for
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* SSH_SMSG_{SUCCESS,FAILURE} replies to. (Those messages don't
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* come with any indication of what they're in response to, so we
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* have to keep track of the queue ourselves.)
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*/
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struct outstanding_succfail *succfail_head, *succfail_tail;
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bool compressing; /* used in server mode only */
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bool sent_exit_status; /* also for server mode */
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prompts_t *antispoof_prompt;
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int antispoof_ret;
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const SshServerConfig *ssc;
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ConnectionLayer cl;
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PacketProtocolLayer ppl;
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};
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struct ssh1_channel {
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struct ssh1_connection_state *connlayer;
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unsigned remoteid, localid;
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int type;
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/* True if we opened this channel but server hasn't confirmed. */
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bool halfopen;
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/* Bitmap of whether we've sent/received CHANNEL_CLOSE and
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* CHANNEL_CLOSE_CONFIRMATION. */
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#define CLOSES_SENT_CLOSE 1
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#define CLOSES_SENT_CLOSECONF 2
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#define CLOSES_RCVD_CLOSE 4
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#define CLOSES_RCVD_CLOSECONF 8
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int closes;
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/*
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* This flag indicates that an EOF is pending on the outgoing side
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* of the channel: that is, wherever we're getting the data for
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* this channel has sent us some data followed by EOF. We can't
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* actually send the EOF until we've finished sending the data, so
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* we set this flag instead to remind us to do so once our buffer
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* is clear.
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*/
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bool pending_eof;
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/*
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* True if this channel is causing the underlying connection to be
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* throttled.
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*/
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bool throttling_conn;
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/*
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* True if we currently have backed-up data on the direction of
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* this channel pointing out of the SSH connection, and therefore
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* would prefer the 'Channel' implementation not to read further
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* local input if possible.
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*/
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bool throttled_by_backlog;
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Channel *chan; /* handle the client side of this channel, if not */
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SshChannel sc; /* entry point for chan to talk back to */
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};
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SshChannel *ssh1_session_open(ConnectionLayer *cl, Channel *chan);
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void ssh1_channel_init(struct ssh1_channel *c);
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void ssh1_channel_free(struct ssh1_channel *c);
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struct ssh_rportfwd *ssh1_rportfwd_alloc(
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ConnectionLayer *cl,
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const char *shost, int sport, const char *dhost, int dport,
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int addressfamily, const char *log_description, PortFwdRecord *pfr,
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ssh_sharing_connstate *share_ctx);
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SshChannel *ssh1_serverside_x11_open(
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ConnectionLayer *cl, Channel *chan, const SocketPeerInfo *pi);
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SshChannel *ssh1_serverside_agent_open(ConnectionLayer *cl, Channel *chan);
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void ssh1_connection_direction_specific_setup(
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struct ssh1_connection_state *s);
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bool ssh1_handle_direction_specific_packet(
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struct ssh1_connection_state *s, PktIn *pktin);
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bool ssh1_check_termination(struct ssh1_connection_state *s);
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bool ssh1_connection_need_antispoof_prompt(struct ssh1_connection_state *s);
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