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authorPavel Shilovsky <pshilovsky@samba.org>2013-09-04 13:07:41 +0400
committerSteve French <smfrench@gmail.com>2013-09-10 07:52:08 +0400
commita41a28bda936ea627afbfe94a7f5cd63f23cf727 (patch)
tree4ec92f87632ab0e5e5ec018018a6a5e513bbdf7d /fs/cifs/smb2ops.c
parent53ef1016fd0e4bab128a24f7fe06b9cdb2afdc31 (diff)
downloadlinux-a41a28bda936ea627afbfe94a7f5cd63f23cf727.tar.xz
CIFS: Move creating lease buffer to ops struct
to make adding new types of lease buffers easier. Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/smb2ops.c')
-rw-r--r--fs/cifs/smb2ops.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 4656656d5c0f..ecff4d6e4b16 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -714,6 +714,40 @@ smb21_is_read_op(__u32 oplock)
!(oplock & SMB2_LEASE_WRITE_CACHING_HE);
}
+static char *
+smb2_create_lease_buf(u8 *lease_key, u8 oplock)
+{
+ struct create_lease *buf;
+
+ buf = kzalloc(sizeof(struct create_lease), GFP_KERNEL);
+ if (!buf)
+ return NULL;
+
+ buf->lcontext.LeaseKeyLow = cpu_to_le64(*((u64 *)lease_key));
+ buf->lcontext.LeaseKeyHigh = cpu_to_le64(*((u64 *)(lease_key + 8)));
+ if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE)
+ buf->lcontext.LeaseState = SMB2_LEASE_WRITE_CACHING |
+ SMB2_LEASE_READ_CACHING;
+ else if (oplock == SMB2_OPLOCK_LEVEL_II)
+ buf->lcontext.LeaseState = SMB2_LEASE_READ_CACHING;
+ else if (oplock == SMB2_OPLOCK_LEVEL_BATCH)
+ buf->lcontext.LeaseState = SMB2_LEASE_HANDLE_CACHING |
+ SMB2_LEASE_READ_CACHING |
+ SMB2_LEASE_WRITE_CACHING;
+
+ buf->ccontext.DataOffset = cpu_to_le16(offsetof
+ (struct create_lease, lcontext));
+ buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context));
+ buf->ccontext.NameOffset = cpu_to_le16(offsetof
+ (struct create_lease, Name));
+ buf->ccontext.NameLength = cpu_to_le16(4);
+ buf->Name[0] = 'R';
+ buf->Name[1] = 'q';
+ buf->Name[2] = 'L';
+ buf->Name[3] = 's';
+ return (char *)buf;
+}
+
struct smb_version_operations smb20_operations = {
.compare_fids = smb2_compare_fids,
.setup_request = smb2_setup_request,
@@ -781,6 +815,7 @@ struct smb_version_operations smb20_operations = {
.calc_signature = smb2_calc_signature,
.is_read_op = smb2_is_read_op,
.set_oplock_level = smb2_set_oplock_level,
+ .create_lease_buf = smb2_create_lease_buf,
};
struct smb_version_operations smb21_operations = {
@@ -850,6 +885,7 @@ struct smb_version_operations smb21_operations = {
.calc_signature = smb2_calc_signature,
.is_read_op = smb21_is_read_op,
.set_oplock_level = smb21_set_oplock_level,
+ .create_lease_buf = smb2_create_lease_buf,
};
struct smb_version_operations smb30_operations = {
@@ -921,6 +957,7 @@ struct smb_version_operations smb30_operations = {
.calc_signature = smb3_calc_signature,
.is_read_op = smb21_is_read_op,
.set_oplock_level = smb21_set_oplock_level,
+ .create_lease_buf = smb2_create_lease_buf,
};
struct smb_version_values smb20_values = {
@@ -940,6 +977,7 @@ struct smb_version_values smb20_values = {
.cap_large_files = SMB2_LARGE_FILES,
.signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
.signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
+ .create_lease_size = sizeof(struct create_lease),
};
struct smb_version_values smb21_values = {
@@ -959,6 +997,7 @@ struct smb_version_values smb21_values = {
.cap_large_files = SMB2_LARGE_FILES,
.signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
.signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
+ .create_lease_size = sizeof(struct create_lease),
};
struct smb_version_values smb30_values = {
@@ -978,6 +1017,7 @@ struct smb_version_values smb30_values = {
.cap_large_files = SMB2_LARGE_FILES,
.signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
.signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
+ .create_lease_size = sizeof(struct create_lease),
};
struct smb_version_values smb302_values = {
@@ -997,4 +1037,5 @@ struct smb_version_values smb302_values = {
.cap_large_files = SMB2_LARGE_FILES,
.signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
.signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
+ .create_lease_size = sizeof(struct create_lease),
};