diff options
Diffstat (limited to 'fs/cifs/cifsfs.c')
| -rw-r--r-- | fs/cifs/cifsfs.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 3289b566463f..7a75726442ad 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -56,6 +56,15 @@ #include "dfs_cache.h" #endif +/* + * DOS dates from 1980/1/1 through 2107/12/31 + * Protocol specifications indicate the range should be to 119, which + * limits maximum year to 2099. But this range has not been checked. + */ +#define SMB_DATE_MAX (127<<9 | 12<<5 | 31) +#define SMB_DATE_MIN (0<<9 | 1<<5 | 1) +#define SMB_TIME_MAX (23<<11 | 59<<5 | 29) + int cifsFYI = 0; bool traceSMB; bool enable_oplocks = true; @@ -142,6 +151,7 @@ cifs_read_super(struct super_block *sb) struct inode *inode; struct cifs_sb_info *cifs_sb; struct cifs_tcon *tcon; + struct timespec64 ts; int rc = 0; cifs_sb = CIFS_SB(sb); @@ -161,6 +171,18 @@ cifs_read_super(struct super_block *sb) /* BB FIXME fix time_gran to be larger for LANMAN sessions */ sb->s_time_gran = 100; + if (tcon->unix_ext) { + ts = cifs_NTtimeToUnix(0); + sb->s_time_min = ts.tv_sec; + ts = cifs_NTtimeToUnix(cpu_to_le64(S64_MAX)); + sb->s_time_max = ts.tv_sec; + } else { + ts = cnvrtDosUnixTm(cpu_to_le16(SMB_DATE_MIN), 0, 0); + sb->s_time_min = ts.tv_sec; + ts = cnvrtDosUnixTm(cpu_to_le16(SMB_DATE_MAX), cpu_to_le16(SMB_TIME_MAX), 0); + sb->s_time_max = ts.tv_sec; + } + sb->s_magic = CIFS_MAGIC_NUMBER; sb->s_op = &cifs_super_ops; sb->s_xattr = cifs_xattr_handlers; |