Dmitry V. Levin | 6da7ca3 | 2014-12-03 21:12:07 +0000 | [diff] [blame] | 1 | #include "defs.h" |
| 2 | |
| 3 | #define MS_RDONLY 1 /* Mount read-only */ |
| 4 | #define MS_NOSUID 2 /* Ignore suid and sgid bits */ |
| 5 | #define MS_NODEV 4 /* Disallow access to device special files */ |
| 6 | #define MS_NOEXEC 8 /* Disallow program execution */ |
| 7 | #define MS_SYNCHRONOUS 16 /* Writes are synced at once */ |
| 8 | #define MS_REMOUNT 32 /* Alter flags of a mounted FS */ |
| 9 | #define MS_MANDLOCK 64 /* Allow mandatory locks on an FS */ |
| 10 | #define MS_DIRSYNC 128 /* Directory modifications are synchronous */ |
| 11 | #define MS_NOATIME 1024 /* Do not update access times. */ |
| 12 | #define MS_NODIRATIME 2048 /* Do not update directory access times */ |
| 13 | #define MS_BIND 4096 |
| 14 | #define MS_MOVE 8192 |
| 15 | #define MS_REC 16384 |
| 16 | #define MS_SILENT 32768 |
| 17 | #define MS_POSIXACL (1<<16) /* VFS does not apply the umask */ |
| 18 | #define MS_UNBINDABLE (1<<17) /* change to unbindable */ |
| 19 | #define MS_PRIVATE (1<<18) /* change to private */ |
| 20 | #define MS_SLAVE (1<<19) /* change to slave */ |
| 21 | #define MS_SHARED (1<<20) /* change to shared */ |
| 22 | #define MS_RELATIME (1<<21) |
| 23 | #define MS_KERNMOUNT (1<<22) |
| 24 | #define MS_I_VERSION (1<<23) |
| 25 | #define MS_STRICTATIME (1<<24) |
| 26 | #define MS_NOSEC (1<<28) |
| 27 | #define MS_BORN (1<<29) |
| 28 | #define MS_ACTIVE (1<<30) |
| 29 | #define MS_NOUSER (1<<31) |
| 30 | #define MS_MGC_VAL 0xc0ed0000 /* Magic flag number */ |
| 31 | #define MS_MGC_MSK 0xffff0000 /* Magic flag mask */ |
| 32 | |
| 33 | #include "xlat/mount_flags.h" |
| 34 | |
Dmitry V. Levin | a0bd374 | 2015-04-07 01:36:50 +0000 | [diff] [blame] | 35 | SYS_FUNC(mount) |
Dmitry V. Levin | 6da7ca3 | 2014-12-03 21:12:07 +0000 | [diff] [blame] | 36 | { |
| 37 | if (entering(tcp)) { |
| 38 | int ignore_type = 0, ignore_data = 0; |
| 39 | unsigned long flags = tcp->u_arg[3]; |
| 40 | |
| 41 | /* Discard magic */ |
| 42 | if ((flags & MS_MGC_MSK) == MS_MGC_VAL) |
| 43 | flags &= ~MS_MGC_MSK; |
| 44 | |
| 45 | if (flags & MS_REMOUNT) |
| 46 | ignore_type = 1; |
| 47 | else if (flags & (MS_BIND | MS_MOVE)) |
| 48 | ignore_type = ignore_data = 1; |
| 49 | |
| 50 | printpath(tcp, tcp->u_arg[0]); |
| 51 | tprints(", "); |
| 52 | |
| 53 | printpath(tcp, tcp->u_arg[1]); |
| 54 | tprints(", "); |
| 55 | |
| 56 | if (ignore_type && tcp->u_arg[2]) |
| 57 | tprintf("%#lx", tcp->u_arg[2]); |
| 58 | else |
| 59 | printstr(tcp, tcp->u_arg[2], -1); |
| 60 | tprints(", "); |
| 61 | |
| 62 | printflags(mount_flags, tcp->u_arg[3], "MS_???"); |
| 63 | tprints(", "); |
| 64 | |
| 65 | if (ignore_data && tcp->u_arg[4]) |
| 66 | tprintf("%#lx", tcp->u_arg[4]); |
| 67 | else |
| 68 | printstr(tcp, tcp->u_arg[4], -1); |
| 69 | } |
| 70 | return 0; |
| 71 | } |