diff options
Diffstat (limited to 'crypto/kerberosIV/lib/krb/lifetime.c')
-rw-r--r-- | crypto/kerberosIV/lib/krb/lifetime.c | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/crypto/kerberosIV/lib/krb/lifetime.c b/crypto/kerberosIV/lib/krb/lifetime.c deleted file mode 100644 index 1866996..0000000 --- a/crypto/kerberosIV/lib/krb/lifetime.c +++ /dev/null @@ -1,213 +0,0 @@ -/* - * Ticket lifetime. This defines the table used to lookup lifetime - * for the fixed part of rande of the one byte lifetime field. Values - * less than 0x80 are intrpreted as the number of 5 minute intervals. - * Values from 0x80 to 0xBF should be looked up in this table. The - * value of 0x80 is the same using both methods: 10 and two-thirds - * hours . The lifetime of 0xBF is 30 days. The intervening values - * of have a fixed ratio of roughly 1.06914. The value 0xFF is - * defined to mean a ticket has no expiration time. This should be - * used advisedly since individual servers may impose defacto - * upperbounds on ticket lifetimes. - */ - -#include "krb_locl.h" - -RCSID("$Id: lifetime.c,v 1.9 1997/05/02 14:29:18 assar Exp $"); - -/* If you want to disable this feature */ -int krb_no_long_lifetimes = 0; - -#define TKTLIFENUMFIXED 64 -#define TKTLIFEMINFIXED 0x80 -#define TKTLIFEMAXFIXED 0xBF -#define TKTLIFENOEXPIRE 0xFF -#define MAXTKTLIFETIME (30*24*3600) /* 30 days */ -#ifndef NEVERDATE -#define NEVERDATE ((unsigned long)0x7fffffffL) -#endif - -static const int tkt_lifetimes[TKTLIFENUMFIXED] = { - 38400, /* 10.67 hours, 0.44 days */ - 41055, /* 11.40 hours, 0.48 days */ - 43894, /* 12.19 hours, 0.51 days */ - 46929, /* 13.04 hours, 0.54 days */ - 50174, /* 13.94 hours, 0.58 days */ - 53643, /* 14.90 hours, 0.62 days */ - 57352, /* 15.93 hours, 0.66 days */ - 61318, /* 17.03 hours, 0.71 days */ - 65558, /* 18.21 hours, 0.76 days */ - 70091, /* 19.47 hours, 0.81 days */ - 74937, /* 20.82 hours, 0.87 days */ - 80119, /* 22.26 hours, 0.93 days */ - 85658, /* 23.79 hours, 0.99 days */ - 91581, /* 25.44 hours, 1.06 days */ - 97914, /* 27.20 hours, 1.13 days */ - 104684, /* 29.08 hours, 1.21 days */ - 111922, /* 31.09 hours, 1.30 days */ - 119661, /* 33.24 hours, 1.38 days */ - 127935, /* 35.54 hours, 1.48 days */ - 136781, /* 37.99 hours, 1.58 days */ - 146239, /* 40.62 hours, 1.69 days */ - 156350, /* 43.43 hours, 1.81 days */ - 167161, /* 46.43 hours, 1.93 days */ - 178720, /* 49.64 hours, 2.07 days */ - 191077, /* 53.08 hours, 2.21 days */ - 204289, /* 56.75 hours, 2.36 days */ - 218415, /* 60.67 hours, 2.53 days */ - 233517, /* 64.87 hours, 2.70 days */ - 249664, /* 69.35 hours, 2.89 days */ - 266926, /* 74.15 hours, 3.09 days */ - 285383, /* 79.27 hours, 3.30 days */ - 305116, /* 84.75 hours, 3.53 days */ - 326213, /* 90.61 hours, 3.78 days */ - 348769, /* 96.88 hours, 4.04 days */ - 372885, /* 103.58 hours, 4.32 days */ - 398668, /* 110.74 hours, 4.61 days */ - 426234, /* 118.40 hours, 4.93 days */ - 455705, /* 126.58 hours, 5.27 days */ - 487215, /* 135.34 hours, 5.64 days */ - 520904, /* 144.70 hours, 6.03 days */ - 556921, /* 154.70 hours, 6.45 days */ - 595430, /* 165.40 hours, 6.89 days */ - 636601, /* 176.83 hours, 7.37 days */ - 680618, /* 189.06 hours, 7.88 days */ - 727680, /* 202.13 hours, 8.42 days */ - 777995, /* 216.11 hours, 9.00 days */ - 831789, /* 231.05 hours, 9.63 days */ - 889303, /* 247.03 hours, 10.29 days */ - 950794, /* 264.11 hours, 11.00 days */ - 1016537, /* 282.37 hours, 11.77 days */ - 1086825, /* 301.90 hours, 12.58 days */ - 1161973, /* 322.77 hours, 13.45 days */ - 1242318, /* 345.09 hours, 14.38 days */ - 1328218, /* 368.95 hours, 15.37 days */ - 1420057, /* 394.46 hours, 16.44 days */ - 1518247, /* 421.74 hours, 17.57 days */ - 1623226, /* 450.90 hours, 18.79 days */ - 1735464, /* 482.07 hours, 20.09 days */ - 1855462, /* 515.41 hours, 21.48 days */ - 1983758, /* 551.04 hours, 22.96 days */ - 2120925, /* 589.15 hours, 24.55 days */ - 2267576, /* 629.88 hours, 26.25 days */ - 2424367, /* 673.44 hours, 28.06 days */ - 2592000}; /* 720.00 hours, 30.00 days */ - -/* - * krb_life_to_time - takes a start time and a Kerberos standard - * lifetime char and returns the corresponding end time. There are - * four simple cases to be handled. The first is a life of 0xff, - * meaning no expiration, and results in an end time of 0xffffffff. - * The second is when life is less than the values covered by the - * table. In this case, the end time is the start time plus the - * number of 5 minute intervals specified by life. The third case - * returns start plus the MAXTKTLIFETIME if life is greater than - * TKTLIFEMAXFIXED. The last case, uses the life value (minus - * TKTLIFEMINFIXED) as an index into the table to extract the lifetime - * in seconds, which is added to start to produce the end time. - */ -u_int32_t -krb_life_to_time(u_int32_t start, int life_) -{ - unsigned char life = (unsigned char) life_; - - if (krb_no_long_lifetimes) return start + life*5*60; - - if (life == TKTLIFENOEXPIRE) return NEVERDATE; - if (life < TKTLIFEMINFIXED) return start + life*5*60; - if (life > TKTLIFEMAXFIXED) return start + MAXTKTLIFETIME; - return start + tkt_lifetimes[life - TKTLIFEMINFIXED]; -} - -/* - * krb_time_to_life - takes start and end times for the ticket and - * returns a Kerberos standard lifetime char, possibily using the - * tkt_lifetimes table for lifetimes above 127*5 minutes. First, the - * special case of (end == NEVERDATE) is handled to mean no - * expiration. Then negative lifetimes and those greater than the - * maximum ticket lifetime are rejected. Then lifetimes less than the - * first table entry are handled by rounding the requested lifetime - * *up* to the next 5 minute interval. The final step is to search - * the table for the smallest entry *greater than or equal* to the - * requested entry. - */ -int krb_time_to_life(u_int32_t start, u_int32_t end) -{ - int i; - long lifetime = end - start; - - if (krb_no_long_lifetimes) return (lifetime + 5*60 - 1)/(5*60); - - if (end >= NEVERDATE) return TKTLIFENOEXPIRE; - if (lifetime > MAXTKTLIFETIME || lifetime <= 0) return 0; - if (lifetime < tkt_lifetimes[0]) return (lifetime + 5*60 - 1)/(5*60); - for (i=0; i<TKTLIFENUMFIXED; i++) { - if (lifetime <= tkt_lifetimes[i]) { - return i+TKTLIFEMINFIXED; - } - } - return 0; -} - -char * -krb_life_to_atime(int life) -{ - static char atime[11+1+2+1+2+1+2+1]; - unsigned long when; - int secs, mins, hours; - - if (life == TKTLIFENOEXPIRE && !krb_no_long_lifetimes) - return("Forever"); - when = krb_life_to_time(0, life); - secs = when%60; - when /= 60; - mins = when%60; - when /= 60; - hours = when%24; - when /= 24; - snprintf(atime, sizeof(atime), "%d+%02d:%02d:%02d", (int)when, hours, mins, secs); - return(atime); -} - -int -krb_atime_to_life(char *atime) -{ - unsigned long when = 0; - char *cp; - int colon = 0, plus = 0; - int n = 0; - - if (strcasecmp(atime, "forever") == 0) - return(TKTLIFENOEXPIRE); - - for (cp=atime; *cp; cp++) { - switch(*cp) { - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - n = n*10 + *cp-'0'; - break; - case '+': - plus++; - when += n; - when *= 24; - n = 0; - break; - case ':': - colon++; - when += n; - when *= 60; - n = 0; - break; - default: - break; - } - } - when += n; - if (plus == 0 && colon == 0) - return((unsigned char)when); - while (colon < 2) { - when *= 60; - colon++; - } - return(krb_time_to_life(0,when)); -} |