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| author | M. Mohan Kumar <mohan@in.ibm.com> | 2011-10-12 19:11:24 +0530 |
|---|---|---|
| committer | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2011-10-15 15:30:27 +0530 |
| commit | 9844081bcaf6e0fcfafa91441dde0ae9d2c17e28 (patch) | |
| tree | cb87960b1be3c9c1e34b55751ebea8a90deeaa81 /hw/9pfs/virtio-9p.c | |
| parent | a2f507d9089f57525d58cd0852c6bea6720074e5 (diff) | |
| download | qemu-9844081bcaf6e0fcfafa91441dde0ae9d2c17e28.tar.gz | |
hw/9pfs: Add open flag mapping
Some of the flags are OS/arch dependent we need to use
9P defined value on wire,
Based on the original patch from Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Diffstat (limited to 'hw/9pfs/virtio-9p.c')
| -rw-r--r-- | hw/9pfs/virtio-9p.c | 53 |
1 files changed, 52 insertions, 1 deletions
diff --git a/hw/9pfs/virtio-9p.c b/hw/9pfs/virtio-9p.c index d4764855d9..dcbcdb0fde 100644 --- a/hw/9pfs/virtio-9p.c +++ b/hw/9pfs/virtio-9p.c @@ -72,6 +72,55 @@ static int omode_to_uflags(int8_t mode) return ret; } +static int dotl_to_at_flags(int flags) +{ + int rflags = 0; + if (flags & P9_DOTL_AT_REMOVEDIR) { + rflags |= AT_REMOVEDIR; + } + return rflags; +} + +struct dotl_openflag_map { + int dotl_flag; + int open_flag; +}; + +static int dotl_to_open_flags(int flags) +{ + int i; + /* + * We have same bits for P9_DOTL_READONLY, P9_DOTL_WRONLY + * and P9_DOTL_NOACCESS + */ + int oflags = flags & O_ACCMODE; + + struct dotl_openflag_map dotl_oflag_map[] = { + { P9_DOTL_CREATE, O_CREAT }, + { P9_DOTL_EXCL, O_EXCL }, + { P9_DOTL_NOCTTY , O_NOCTTY }, + { P9_DOTL_TRUNC, O_TRUNC }, + { P9_DOTL_APPEND, O_APPEND }, + { P9_DOTL_NONBLOCK, O_NONBLOCK } , + { P9_DOTL_DSYNC, O_DSYNC }, + { P9_DOTL_FASYNC, FASYNC }, + { P9_DOTL_DIRECT, O_DIRECT }, + { P9_DOTL_LARGEFILE, O_LARGEFILE }, + { P9_DOTL_DIRECTORY, O_DIRECTORY }, + { P9_DOTL_NOFOLLOW, O_NOFOLLOW }, + { P9_DOTL_NOATIME, O_NOATIME }, + { P9_DOTL_SYNC, O_SYNC }, + }; + + for (i = 0; i < ARRAY_SIZE(dotl_oflag_map); i++) { + if (flags & dotl_oflag_map[i].dotl_flag) { + oflags |= dotl_oflag_map[i].open_flag; + } + } + + return oflags; +} + void cred_init(FsCred *credp) { credp->fc_uid = -1; @@ -86,7 +135,8 @@ static int get_dotl_openflags(V9fsState *s, int oflags) /* * Filter the client open flags */ - flags = oflags & ~(O_NOCTTY | O_ASYNC | O_CREAT); + flags = dotl_to_open_flags(oflags); + flags &= ~(O_NOCTTY | O_ASYNC | O_CREAT); /* * Ignore direct disk access hint until the server supports it. */ @@ -2427,6 +2477,7 @@ static void v9fs_unlinkat(void *opaque) V9fsPDU *pdu = opaque; pdu_unmarshal(pdu, offset, "dsd", &dfid, &name, &flags); + flags = dotl_to_at_flags(flags); dfidp = get_fid(pdu, dfid); if (dfidp == NULL) { |