From 268f3be177ce93791da38facc34126b5038cd851 Mon Sep 17 00:00:00 2001 From: Steve French Date: Fri, 6 Oct 2006 21:47:09 +0000 Subject: [CIFS] readdir (ffirst) enablement of accurate timestamps from legacy servers Signed-off-by: Steve French --- fs/cifs/netmisc.c | 39 ++++++++++++++++++--------------------- fs/cifs/readdir.c | 18 +++++++++--------- 2 files changed, 27 insertions(+), 30 deletions(-) (limited to 'fs/cifs') diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c index fa5124d9af1..3d86b31cf2e 100644 --- a/fs/cifs/netmisc.c +++ b/fs/cifs/netmisc.c @@ -918,45 +918,42 @@ __le64 cnvrtDosCifsTm(__u16 date, __u16 time) { return cpu_to_le64(cifs_UnixTimeToNT(cnvrtDosUnixTm(date, time))); } + struct timespec cnvrtDosUnixTm(__u16 date, __u16 time) { - __u8 dt[2]; - __u8 tm[2]; struct timespec ts; - int sec,min, days, month, year; - struct timespec removeme; /* BB removeme BB */ -/* SMB_TIME * st = (SMB_TIME *)&time;*/ + int sec, min, days, month, year; + SMB_TIME * st = (SMB_TIME *)&time; + SMB_DATE * sd = (SMB_DATE *)&date; cFYI(1,("date %d time %d",date, time)); - dt[0] = date & 0xFF; - dt[1] = (date & 0xFF00) >> 8; - tm[0] = time & 0xFF; - tm[1] = (time & 0xFF00) >> 8; - - sec = tm[0] & 0x1F; - sec = 2 * sec; - min = ((tm[0] >>5)&0xFF) + ((tm[1] & 0x7)<<3); - + sec = 2 * st->TwoSeconds; + min = st->Minutes; + if((sec > 59) || (min > 59)) + cERROR(1,("illegal time min %d sec %d", min, sec)); sec += (min * 60); - sec += 60 * 60 * ((tm[1] >> 3) &0xFF) /* hours */; - days = (dt[0] & 0x1F) - 1; - month = ((dt[0] >> 5) & 0xFF) + ((dt[1] & 0x1) <<3); - if(month > 12) - cERROR(1,("illegal month %d in date", month)); + sec += 60 * 60 * st->Hours; + if(st->Hours > 24) + cERROR(1,("illegal hours %d",st->Hours)); + days = sd->Day; + month = sd->Month; + if((days > 31) || (month > 12)) + cERROR(1,("illegal date, month %d day: %d", month, days)); month -= 1; days += total_days_of_prev_months[month]; days += 3653; /* account for difference in days between 1980 and 1970 */ - year = (dt[1]>>1) & 0xFF; + year = sd->Year; days += year * 365; days += (year/4); /* leap year */ /* adjust for leap year where we are still before leap day */ days -= ((year & 0x03) == 0) && (month < 2 ? 1 : 0); sec += 24 * 60 * 60 * days; - removeme = CURRENT_TIME; /* BB removeme BB */ ts.tv_sec = sec; + /* cFYI(1,("sec after cnvrt dos to unix time %d",sec)); */ + ts.tv_nsec = 0; return ts; } diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index b0e5db10664..81e7b2e5fb4 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -139,19 +139,19 @@ static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, FIND_FILE_STANDARD_INFO * pfindData = (FIND_FILE_STANDARD_INFO *)buf; -/* ts = cnvrtDosUnixTm( + tmp_inode->i_mtime = cnvrtDosUnixTm( le16_to_cpu(pfindData->LastWriteDate), - le16_to_cpu(pfindData->LastWriteTime));*/ + le16_to_cpu(pfindData->LastWriteTime)); + tmp_inode->i_atime = cnvrtDosUnixTm( + le16_to_cpu(pfindData->LastAccessDate), + le16_to_cpu(pfindData->LastAccessTime)); + tmp_inode->i_ctime = cnvrtDosUnixTm( + le16_to_cpu(pfindData->LastWriteDate), + le16_to_cpu(pfindData->LastWriteTime)); + attr = le16_to_cpu(pfindData->Attributes); allocation_size = le32_to_cpu(pfindData->AllocationSize); end_of_file = le32_to_cpu(pfindData->DataSize); - /* do not need to use current_fs_time helper function since - time not stored for this case so atime can not "go backwards" - by pulling newer older from disk when inode refrenshed */ - tmp_inode->i_atime = CURRENT_TIME; - /* tmp_inode->i_mtime = BB FIXME - add dos time handling - tmp_inode->i_ctime = 0; BB FIXME */ - } /* Linux can not store file creation time unfortunately so ignore it */ -- cgit v1.2.3