linux/fs/smb/client/smb2transport.c

// SPDX-License-Identifier: LGPL-2.1
/*
 *
 *   Copyright (C) International Business Machines  Corp., 2002, 2011
 *                 Etersoft, 2012
 *   Author(s): Steve French ([email protected])
 *              Jeremy Allison ([email protected]) 2006
 *              Pavel Shilovsky ([email protected]) 2012
 *
 */

#include <linux/fs.h>
#include <linux/list.h>
#include <linux/wait.h>
#include <linux/net.h>
#include <linux/delay.h>
#include <linux/uaccess.h>
#include <asm/processor.h>
#include <linux/mempool.h>
#include <linux/highmem.h>
#include <crypto/aead.h>
#include "cifsglob.h"
#include "cifsproto.h"
#include "smb2proto.h"
#include "cifs_debug.h"
#include "../common/smb2status.h"
#include "smb2glob.h"

static int
smb3_crypto_shash_allocate(struct TCP_Server_Info *server)
{ … }

int
smb311_crypto_shash_allocate(struct TCP_Server_Info *server)
{ … }


static
int smb2_get_sign_key(__u64 ses_id, struct TCP_Server_Info *server, u8 *key)
{ … }

static struct cifs_ses *
smb2_find_smb_ses_unlocked(struct TCP_Server_Info *server, __u64 ses_id)
{ … }

struct cifs_ses *
smb2_find_smb_ses(struct TCP_Server_Info *server, __u64 ses_id)
{ … }

static struct cifs_tcon *
smb2_find_smb_sess_tcon_unlocked(struct cifs_ses *ses, __u32  tid)
{ … }

/*
 * Obtain tcon corresponding to the tid in the given
 * cifs_ses
 */

struct cifs_tcon *
smb2_find_smb_tcon(struct TCP_Server_Info *server, __u64 ses_id, __u32  tid)
{ … }

int
smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server,
			bool allocate_crypto)
{ … }

static int generate_key(struct cifs_ses *ses, struct kvec label,
			struct kvec context, __u8 *key, unsigned int key_size)
{ … }

struct derivation { … };

struct derivation_triplet { … };

static int
generate_smb3signingkey(struct cifs_ses *ses,
			struct TCP_Server_Info *server,
			const struct derivation_triplet *ptriplet)
{ … }

int
generate_smb30signingkey(struct cifs_ses *ses,
			 struct TCP_Server_Info *server)

{ … }

int
generate_smb311signingkey(struct cifs_ses *ses,
			  struct TCP_Server_Info *server)

{ … }

int
smb3_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server,
			bool allocate_crypto)
{ … }

/* must be called with server->srv_mutex held */
static int
smb2_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server)
{ … }

int
smb2_verify_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
{ … }

/*
 * Set message id for the request. Should be called after wait_for_free_request
 * and when srv_mutex is held.
 */
static inline void
smb2_seq_num_into_buf(struct TCP_Server_Info *server,
		      struct smb2_hdr *shdr)
{ … }

static struct mid_q_entry *
smb2_mid_entry_alloc(const struct smb2_hdr *shdr,
		     struct TCP_Server_Info *server)
{ … }

static int
smb2_get_mid_entry(struct cifs_ses *ses, struct TCP_Server_Info *server,
		   struct smb2_hdr *shdr, struct mid_q_entry **mid)
{ … }

int
smb2_check_receive(struct mid_q_entry *mid, struct TCP_Server_Info *server,
		   bool log_error)
{ … }

struct mid_q_entry *
smb2_setup_request(struct cifs_ses *ses, struct TCP_Server_Info *server,
		   struct smb_rqst *rqst)
{ … }

struct mid_q_entry *
smb2_setup_async_request(struct TCP_Server_Info *server, struct smb_rqst *rqst)
{ … }

int
smb3_crypto_aead_allocate(struct TCP_Server_Info *server)
{ … }