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NEX-14666 Need to provide SMB 2.1 Client
NEX-17187 panic in smbfs_acl_store
NEX-17231 smbfs create xattr files finds wrong file
NEX-17224 smbfs lookup EINVAL should be ENOENT
NEX-17260 SMB1 client fails to list directory after NEX-14666
Reviewed by: Evan Layton <evan.layton@nexenta.com>
Reviewed by: Matt Barden <matt.barden@nexenta.com>
Reviewed by: Rick McNeal <rick.mcneal@nexenta.com>
Reviewed by: Saso Kiselkov <saso.kiselkov@nexenta.com>
Reviewed by: Joyce McIntosh <joyce.mcintosh@nexenta.com>
and: (cleanup)
        
*** 33,42 ****
--- 33,44 ----
   */
  
  /*
   * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
+  *
+  * Copyright 2018 Nexenta Systems, Inc.  All rights reserved.
   */
  
  /*
   * Time conversion functions (to/from DOS, NT times)
   * From BSD/Darwin smbfs_subr.c
*** 53,117 ****
  #include <netsmb/smb.h>
  #include <netsmb/smb_conn.h>
  #include <netsmb/smb_subr.h>
  
  /*
-  * Time & date conversion routines taken from msdosfs. Although leap
-  * year calculation is bogus, it's sufficient before 2100 :)
-  */
- /*
-  * This is the format of the contents of the deTime field in the direntry
-  * structure.
-  * We don't use bitfields because we don't know how compilers for
-  * arbitrary machines will lay them out.
-  */
- #define DT_2SECONDS_MASK        0x1F    /* seconds divided by 2 */
- #define DT_2SECONDS_SHIFT       0
- #define DT_MINUTES_MASK         0x7E0   /* minutes */
- #define DT_MINUTES_SHIFT        5
- #define DT_HOURS_MASK           0xF800  /* hours */
- #define DT_HOURS_SHIFT          11
- 
- /*
-  * This is the format of the contents of the deDate field in the direntry
-  * structure.
-  */
- #define DD_DAY_MASK             0x1F    /* day of month */
- #define DD_DAY_SHIFT            0
- #define DD_MONTH_MASK           0x1E0   /* month */
- #define DD_MONTH_SHIFT          5
- #define DD_YEAR_MASK            0xFE00  /* year - 1980 */
- #define DD_YEAR_SHIFT           9
- /*
-  * Total number of days that have passed for each month in a regular year.
-  */
- static ushort_t regyear[] = {
-         31, 59, 90, 120, 151, 181,
-         212, 243, 273, 304, 334, 365
- };
- 
- /*
-  * Total number of days that have passed for each month in a leap year.
-  */
- static ushort_t leapyear[] = {
-         31, 60, 91, 121, 152, 182,
-         213, 244, 274, 305, 335, 366
- };
- 
- /*
-  * Variables used to remember parts of the last time conversion.  Maybe we
-  * can avoid a full conversion.
-  */
- static ulong_t  lasttime;
- static ulong_t  lastday;
- static ushort_t lastddate;
- static ushort_t lastdtime;
- 
- /* Lock for the lastxxx variables */
- static kmutex_t lastdt_lock;
- 
- /*
   * Number of seconds between 1970 and 1601 year
   * (134774 days)
   */
  const uint64_t DIFF1970TO1601 = 11644473600ULL;
  const uint32_t TEN_MIL = 10000000UL;
--- 55,64 ----
*** 190,353 ****
          if (seconds == 0)
                  tsp->tv_sec = 0;
          else
                  tsp->tv_sec = seconds + tzoff * 60;
          tsp->tv_nsec = 0;
- }
- 
- /*
-  * Time conversions to/from DOS format, for old dialects.
-  */
- 
- void
- smb_time_unix2dos(struct timespec *tsp, int tzoff, u_int16_t *ddp,
-         u_int16_t *dtp, u_int8_t *dhp)
- {
-         long t;
-         ulong_t days, year, month, inc;
-         ushort_t *months;
- 
-         mutex_enter(&lastdt_lock);
- 
-         /*
-          * If the time from the last conversion is the same as now, then
-          * skip the computations and use the saved result.
-          */
-         smb_time_local2server(tsp, tzoff, &t);
-         t &= ~1;
-         if (lasttime != t) {
-                 lasttime = t;
-                 if (t < 0) {
-                         /*
-                          * This is before 1970, so it's before 1980,
-                          * and can't be represented as a DOS time.
-                          * Just represent it as the DOS epoch.
-                          */
-                         lastdtime = 0;
-                         lastddate = (1 << DD_DAY_SHIFT)
-                             + (1 << DD_MONTH_SHIFT)
-                             + ((1980 - 1980) << DD_YEAR_SHIFT);
-                 } else {
-                         lastdtime = (((t / 2) % 30) << DT_2SECONDS_SHIFT)
-                             + (((t / 60) % 60) << DT_MINUTES_SHIFT)
-                             + (((t / 3600) % 24) << DT_HOURS_SHIFT);
- 
-                         /*
-                          * If the number of days since 1970 is the same as
-                          * the last time we did the computation then skip
-                          * all this leap year and month stuff.
-                          */
-                         days = t / (24 * 60 * 60);
-                         if (days != lastday) {
-                                 lastday = days;
-                                 for (year = 1970; ; year++) {
-                                         /*
-                                          * XXX - works in 2000, but won't
-                                          * work in 2100.
-                                          */
-                                         inc = year & 0x03 ? 365 : 366;
-                                         if (days < inc)
-                                                 break;
-                                         days -= inc;
-                                 }
-                                 /*
-                                  * XXX - works in 2000, but won't work in 2100.
-                                  */
-                                 months = year & 0x03 ? regyear : leapyear;
-                                 for (month = 0; days >= months[month]; month++)
-                                         ;
-                                 if (month > 0)
-                                         days -= months[month - 1];
-                                 lastddate = ((days + 1) << DD_DAY_SHIFT)
-                                     + ((month + 1) << DD_MONTH_SHIFT);
-                                 /*
-                                  * Remember DOS's idea of time is relative
-                                  * to 1980, but UN*X's is relative to 1970.
-                                  * If somehow we get a time before 1980 then
-                                  * don't give totally crazy results.
-                                  */
-                                 if (year > 1980)
-                                         lastddate += (year - 1980) <<
-                                             DD_YEAR_SHIFT;
-                         }
-                 }
-         }
-         if (dhp)
-                 *dhp = (tsp->tv_sec & 1) * 100 + tsp->tv_nsec / 10000000;
- 
-         *ddp = lastddate;
-         *dtp = lastdtime;
- 
-         mutex_exit(&lastdt_lock);
- }
- 
- /*
-  * The number of seconds between Jan 1, 1970 and Jan 1, 1980. In that
-  * interval there were 8 regular years and 2 leap years.
-  */
- #define SECONDSTO1980   (((8 * 365) + (2 * 366)) * (24 * 60 * 60))
- 
- static ushort_t lastdosdate;
- static ulong_t  lastseconds;
- 
- void
- smb_dos2unixtime(uint_t dd, uint_t dt, uint_t dh, int tzoff,
-         struct timespec *tsp)
- {
-         ulong_t seconds;
-         ulong_t month;
-         ulong_t year;
-         ulong_t days;
-         ushort_t *months;
- 
-         if (dd == 0) {
-                 tsp->tv_sec = 0;
-                 tsp->tv_nsec = 0;
-                 return;
-         }
-         seconds = (((dt & DT_2SECONDS_MASK) >> DT_2SECONDS_SHIFT) << 1)
-             + ((dt & DT_MINUTES_MASK) >> DT_MINUTES_SHIFT) * 60
-             + ((dt & DT_HOURS_MASK) >> DT_HOURS_SHIFT) * 3600
-             + dh / 100;
- 
-         /*
-          * If the year, month, and day from the last conversion are the
-          * same then use the saved value.
-          */
-         mutex_enter(&lastdt_lock);
-         if (lastdosdate != dd) {
-                 lastdosdate = (ushort_t)dd;
-                 days = 0;
-                 year = (dd & DD_YEAR_MASK) >> DD_YEAR_SHIFT;
-                 days = year * 365;
-                 days += year / 4 + 1;   /* add in leap days */
-                 /*
-                  * XXX - works in 2000, but won't work in 2100.
-                  */
-                 if ((year & 0x03) == 0)
-                         days--;         /* if year is a leap year */
-                 months = year & 0x03 ? regyear : leapyear;
-                 month = (dd & DD_MONTH_MASK) >> DD_MONTH_SHIFT;
-                 if (month < 1 || month > 12) {
-                         month = 1;
-                 }
-                 if (month > 1)
-                         days += months[month - 2];
-                 days += ((dd & DD_DAY_MASK) >> DD_DAY_SHIFT) - 1;
-                 lastseconds = (days * 24 * 60 * 60) + SECONDSTO1980;
-         }
-         smb_time_server2local(seconds + lastseconds, tzoff, tsp);
-         tsp->tv_nsec = (dh % 100) * 10000000;
-         mutex_exit(&lastdt_lock);
- }
- 
- void
- smb_time_init(void)
- {
-         mutex_init(&lastdt_lock, NULL, MUTEX_DEFAULT, NULL);
- }
- 
- void
- smb_time_fini(void)
- {
-         mutex_destroy(&lastdt_lock);
  }
--- 137,142 ----