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[virtio-9p] Define and implement TSYMLINK for 9P2000.L

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This patch implements creating a symlink for TSYMLINK request
and responds with RSYMLINK. In the case of error, we return RERROR.

SYNOPSIS

    size[4] Tsymlink tag[2] fid[4] name[s] symtgt[s] gid[4]

    size[4] Rsymlink tag[2] qid[13]

    DESCRIPTION

    Create a symbolic link named 'name' pointing to 'symtgt'.
    gid represents the effective group id of the caller.
    The  permissions of a symbolic link are irrelevant hence it is omitted
    from the protocol.

Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
This commit is contained in:
Venkateswararao Jujjuri (JV) 2010-06-09 14:02:08 -07:00 • committed by Aneesh Kumar K.V
parent b2c224be19
commit 08c60fc9cd
3 changed files with 97 additions and 6 deletions
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14
hw/virtio-9p.h
View file

@ -15,6 +15,8 @@
enum {
P9_TSTATFS = 8,
P9_RSTATFS,
P9_TSYMLINK = 16,
P9_RSYMLINK,
P9_TGETATTR = 24,
P9_RGETATTR,
P9_TSETATTR = 26,
@ -294,6 +296,18 @@ typedef struct V9fsWstatState
V9fsString nname;
} V9fsWstatState;
typedef struct V9fsSymlinkState
{
V9fsPDU *pdu;
size_t offset;
V9fsString name;
V9fsString symname;
V9fsString fullname;
V9fsFidState *dfidp;
V9fsQID qid;
struct stat stbuf;
} V9fsSymlinkState;
typedef struct V9fsIattr
{
int32_t valid;