diff options
Diffstat (limited to 'fs/cifs/sess.c')
| -rw-r--r-- | fs/cifs/sess.c | 55 |
1 files changed, 36 insertions, 19 deletions
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index 43a88e26d26b..5d05bd2822d2 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -122,7 +122,7 @@ int cifs_try_adding_channels(struct cifs_ses *ses) tries++; if (tries > 3*ses->chan_max) { - cifs_dbg(FYI, "too many attempt at opening channels (%d channels left to open)\n", + cifs_dbg(FYI, "too many channel open attempts (%d channels left to open)\n", left); break; } @@ -150,6 +150,22 @@ int cifs_try_adding_channels(struct cifs_ses *ses) return ses->chan_count - old_chan_count; } +/* + * If server is a channel of ses, return the corresponding enclosing + * cifs_chan otherwise return NULL. + */ +struct cifs_chan * +cifs_ses_find_chan(struct cifs_ses *ses, struct TCP_Server_Info *server) +{ + int i; + + for (i = 0; i < ses->chan_count; i++) { + if (ses->chans[i].server == server) + return &ses->chans[i]; + } + return NULL; +} + int cifs_ses_add_channel(struct cifs_ses *ses, struct cifs_server_iface *iface) { @@ -162,12 +178,14 @@ cifs_ses_add_channel(struct cifs_ses *ses, struct cifs_server_iface *iface) int rc; unsigned int xid = get_xid(); - cifs_dbg(FYI, "adding channel to ses %p (speed:%zu bps rdma:%s ", - ses, iface->speed, iface->rdma_capable ? "yes" : "no"); if (iface->sockaddr.ss_family == AF_INET) - cifs_dbg(FYI, "ip:%pI4)\n", &ipv4->sin_addr); + cifs_dbg(FYI, "adding channel to ses %p (speed:%zu bps rdma:%s ip:%pI4)\n", + ses, iface->speed, iface->rdma_capable ? "yes" : "no", + &ipv4->sin_addr); else - cifs_dbg(FYI, "ip:%pI6)\n", &ipv6->sin6_addr); + cifs_dbg(FYI, "adding channel to ses %p (speed:%zu bps rdma:%s ip:%pI4)\n", + ses, iface->speed, iface->rdma_capable ? "yes" : "no", + &ipv6->sin6_addr); /* * Setup a smb_vol with mostly the same info as the existing @@ -198,7 +216,7 @@ cifs_ses_add_channel(struct cifs_ses *ses, struct cifs_server_iface *iface) vol.UNC = unc; vol.prepath = ""; - /* Re-use same version as master connection */ + /* Reuse same version as master connection */ vol.vals = ses->server->vals; vol.ops = ses->server->ops; @@ -229,7 +247,7 @@ cifs_ses_add_channel(struct cifs_ses *ses, struct cifs_server_iface *iface) mutex_lock(&ses->session_mutex); - chan = &ses->chans[ses->chan_count]; + chan = ses->binding_chan = &ses->chans[ses->chan_count]; chan->server = cifs_get_tcp_session(&vol); if (IS_ERR(chan->server)) { rc = PTR_ERR(chan->server); @@ -261,7 +279,7 @@ cifs_ses_add_channel(struct cifs_ses *ses, struct cifs_server_iface *iface) goto out; /* success, put it on the list - * XXX: sharing ses between 2 tcp server is not possible, the + * XXX: sharing ses between 2 tcp servers is not possible, the * way "internal" linked lists works in linux makes element * only able to belong to one list * @@ -274,6 +292,7 @@ cifs_ses_add_channel(struct cifs_ses *ses, struct cifs_server_iface *iface) atomic_set(&ses->chan_seq, 0); out: ses->binding = false; + ses->binding_chan = NULL; mutex_unlock(&ses->session_mutex); if (rc && chan->server) @@ -569,15 +588,15 @@ int decode_ntlmssp_challenge(char *bcc_ptr, int blob_len, tioffset = le32_to_cpu(pblob->TargetInfoArray.BufferOffset); tilen = le16_to_cpu(pblob->TargetInfoArray.Length); if (tioffset > blob_len || tioffset + tilen > blob_len) { - cifs_dbg(VFS, "tioffset + tilen too high %u + %u", - tioffset, tilen); + cifs_dbg(VFS, "tioffset + tilen too high %u + %u\n", + tioffset, tilen); return -EINVAL; } if (tilen) { ses->auth_key.response = kmemdup(bcc_ptr + tioffset, tilen, GFP_KERNEL); if (!ses->auth_key.response) { - cifs_dbg(VFS, "Challenge target info alloc failure"); + cifs_dbg(VFS, "Challenge target info alloc failure\n"); return -ENOMEM; } ses->auth_key.len = tilen; @@ -970,7 +989,7 @@ sess_auth_lanman(struct sess_data *sess_data) /* Calculate hash with password and copy into bcc_ptr. * Encryption Key (stored as in cryptkey) gets used if the - * security mode bit in Negottiate Protocol response states + * security mode bit in Negotiate Protocol response states * to use challenge/response method (i.e. Password bit is 1). */ rc = calc_lanman_hash(ses->password, ses->server->cryptkey, @@ -1303,9 +1322,8 @@ sess_auth_kerberos(struct sess_data *sess_data) * sending us a response in an expected form */ if (msg->version != CIFS_SPNEGO_UPCALL_VERSION) { - cifs_dbg(VFS, - "incorrect version of cifs.upcall (expected %d but got %d)", - CIFS_SPNEGO_UPCALL_VERSION, msg->version); + cifs_dbg(VFS, "incorrect version of cifs.upcall (expected %d but got %d)\n", + CIFS_SPNEGO_UPCALL_VERSION, msg->version); rc = -EKEYREJECTED; goto out_put_spnego_key; } @@ -1313,8 +1331,8 @@ sess_auth_kerberos(struct sess_data *sess_data) ses->auth_key.response = kmemdup(msg->data, msg->sesskey_len, GFP_KERNEL); if (!ses->auth_key.response) { - cifs_dbg(VFS, "Kerberos can't allocate (%u bytes) memory", - msg->sesskey_len); + cifs_dbg(VFS, "Kerberos can't allocate (%u bytes) memory\n", + msg->sesskey_len); rc = -ENOMEM; goto out_put_spnego_key; } @@ -1657,8 +1675,7 @@ static int select_sec(struct cifs_ses *ses, struct sess_data *sess_data) type = cifs_select_sectype(ses->server, ses->sectype); cifs_dbg(FYI, "sess setup type %d\n", type); if (type == Unspecified) { - cifs_dbg(VFS, - "Unable to select appropriate authentication method!"); + cifs_dbg(VFS, "Unable to select appropriate authentication method!\n"); return -EINVAL; } |