| commit | a3763d64e0d65ed1902b36c521c57cd252b9c3be | |
| author | Szabolcs Nagy <nsz@port70.net> | |
| Wed, 1 Oct 2014 20:25:40 +0000 (1 22:25 +0200) | ||
| committer | Rich Felker <dalias@aerifal.cx> | |
| Wed, 8 Oct 2014 15:39:28 +0000 (8 11:39 -0400) | ||
| tree | 2b5d6e63779baaa524829e065d57ded57c4990ce | treesnapshot (tar.gz zip) |
| parent | a0c90b9773bd9b5b6faa7a657e22794c1e643989 | commitdiff |
add new linux file sealing api to fcntl.h
new in linux v3.17 commit 40e041a2c858b3caefc757e26cb85bfceae5062b
sealing allows some operations to be blocked on a file which makes
file access safer when fds are shared between processes (only
supported for shared mem fds currently)
flags:
F_SEAL_SEAL prevents further sealing
F_SEAL_SHRINK prevents file from shrinking
F_SEAL_GROW prevents file from growing
F_SEAL_WRITE prevents writes
fcntl commands:
F_GET_SEALS get the current seal flags
F_ADD_SEALS add new seal flags
new in linux v3.17 commit 40e041a2c858b3caefc757e26cb85bfceae5062b
sealing allows some operations to be blocked on a file which makes
file access safer when fds are shared between processes (only
supported for shared mem fds currently)
flags:
F_SEAL_SEAL prevents further sealing
F_SEAL_SHRINK prevents file from shrinking
F_SEAL_GROW prevents file from growing
F_SEAL_WRITE prevents writes
fcntl commands:
F_GET_SEALS get the current seal flags
F_ADD_SEALS add new seal flags
| include/fcntl.h | diffblobblamehistory |