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annotate scpmisc.h @ 1857:6022df862942

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Use DSCP for IP QoS traffic classes The previous TOS values are deprecated and not used by modern traffic classifiers. This sets AF21 for "interactive" traffic (with a tty). Non-tty traffic sets AF11 - that indicates high throughput but is not lowest priority (which would be CS1 or LE). This differs from the CS1 used by OpenSSH, it lets interactive git over SSH have higher priority than background least effort traffic. Dropbear's settings here should be suitable with the diffservs used by CAKE qdisc.
author Matt Johnston <matt@ucc.asn.au>
date Tue, 25 Jan 2022 17:32:20 +0800
parents 292f79307600
children
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1 /* $OpenBSD: misc.h,v 1.12 2002/03/19 10:49:35 markus Exp $ */
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3 /*
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4 * Author: Tatu Ylonen <[email protected]>
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5 * Copyright (c) 1995 Tatu Ylonen <[email protected]>, Espoo, Finland
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6 * All rights reserved
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7 *
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8 * As far as I am concerned, the code I have written for this software
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9 * can be used freely for any purpose. Any derived versions of this
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10 * software must be clearly marked as such, and if the derived work is
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11 * incompatible with the protocol description in the RFC file, it must be
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12 * called by a name other than "ssh" or "Secure Shell".
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13 */
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14
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15 char *chop(char *);
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16 char *strdelim(char **);
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17 void set_nonblock(int);
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18 void unset_nonblock(int);
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19 void set_nodelay(int);
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20 int a2port(const char *);
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21 char *cleanhostname(char *);
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22 char *colon(char *);
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23 long convtime(const char *);
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25 struct passwd *pwcopy(struct passwd *);
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27 typedef struct arglist arglist;
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28 struct arglist {
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29 char **list;
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30 u_int num;
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31 u_int nalloc;
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32 };
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33 void addargs(arglist *, char *, ...);
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34 void replacearg(arglist *, u_int, char *, ...);
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35 void freeargs(arglist *);
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37 /* from xmalloc.h */
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38 void *xmalloc(size_t);
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39 void *xrealloc(void *, size_t);
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40 void xfree(void *);
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41 char *xstrdup(const char *);
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42
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43 char *ssh_get_progname(char *);
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44 void fatal(char* fmt,...);
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45 void sanitise_stdfd(void);
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47 /* Required for non-BSD platforms, from OpenSSH's defines.h */
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48 #ifndef timersub
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49 #define timersub(a, b, result) \
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50 do { \
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51 (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
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52 (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
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53 if ((result)->tv_usec < 0) { \
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54 --(result)->tv_sec; \
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55 (result)->tv_usec += 1000000; \
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56 } \
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57 } while (0)
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58 #endif
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60 #ifndef TIMEVAL_TO_TIMESPEC
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61 #define TIMEVAL_TO_TIMESPEC(tv, ts) { \
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62 (ts)->tv_sec = (tv)->tv_sec; \
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63 (ts)->tv_nsec = (tv)->tv_usec * 1000; \
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64 }
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65 #endif
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66