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-rw-r--r--source3/smbd/negprot.c204
-rw-r--r--source3/smbd/process.c2
2 files changed, 115 insertions, 91 deletions
diff --git a/source3/smbd/negprot.c b/source3/smbd/negprot.c
index 4e3d8f1b3e..61be2e8f9a 100644
--- a/source3/smbd/negprot.c
+++ b/source3/smbd/negprot.c
@@ -27,7 +27,7 @@ BOOL global_encrypted_passwords_negotiated = False;
BOOL global_spnego_negotiated = False;
struct auth_context *negprot_global_auth_context = NULL;
-static void get_challenge(char buff[8])
+static void get_challenge(uint8 buff[8])
{
NTSTATUS nt_status;
const uint8 *cryptkey;
@@ -53,39 +53,39 @@ static void get_challenge(char buff[8])
Reply for the core protocol.
****************************************************************************/
-static int reply_corep(char *inbuf, char *outbuf)
+static void reply_corep(struct smb_request *req, uint16 choice)
{
- int outsize = set_message(inbuf,outbuf,1,0,True);
+ reply_outbuf(req, 1, 0);
+ SSVAL(req->outbuf, smb_vwv0, choice);
Protocol = PROTOCOL_CORE;
-
- return outsize;
}
/****************************************************************************
Reply for the coreplus protocol.
****************************************************************************/
-static int reply_coreplus(char *inbuf, char *outbuf)
+static void reply_coreplus(struct smb_request *req, uint16 choice)
{
int raw = (lp_readraw()?1:0) | (lp_writeraw()?2:0);
- int outsize = set_message(inbuf,outbuf,13,0,True);
- SSVAL(outbuf,smb_vwv5,raw); /* tell redirector we support
+
+ reply_outbuf(req, 13, 0);
+
+ SSVAL(req->outbuf,smb_vwv0,choice);
+ SSVAL(req->outbuf,smb_vwv5,raw); /* tell redirector we support
readbraw and writebraw (possibly) */
/* Reply, SMBlockread, SMBwritelock supported. */
- SCVAL(outbuf,smb_flg,FLAG_REPLY|FLAG_SUPPORT_LOCKREAD);
- SSVAL(outbuf,smb_vwv1,0x1); /* user level security, don't encrypt */
-
+ SCVAL(req->outbuf,smb_flg,FLAG_REPLY|FLAG_SUPPORT_LOCKREAD);
+ SSVAL(req->outbuf,smb_vwv1,0x1); /* user level security, don't
+ * encrypt */
Protocol = PROTOCOL_COREPLUS;
-
- return outsize;
}
/****************************************************************************
Reply for the lanman 1.0 protocol.
****************************************************************************/
-static int reply_lanman1(char *inbuf, char *outbuf)
+static void reply_lanman1(struct smb_request *req, uint16 choice)
{
int raw = (lp_readraw()?1:0) | (lp_writeraw()?2:0);
int secword=0;
@@ -98,36 +98,38 @@ static int reply_lanman1(char *inbuf, char *outbuf)
if (global_encrypted_passwords_negotiated)
secword |= NEGOTIATE_SECURITY_CHALLENGE_RESPONSE;
- set_message(inbuf,outbuf,13,global_encrypted_passwords_negotiated?8:0,True);
- SSVAL(outbuf,smb_vwv1,secword);
+ reply_outbuf(req, 13, global_encrypted_passwords_negotiated?8:0);
+
+ SSVAL(req->outbuf,smb_vwv0,choice);
+ SSVAL(req->outbuf,smb_vwv1,secword);
/* Create a token value and add it to the outgoing packet. */
if (global_encrypted_passwords_negotiated) {
- get_challenge(smb_buf(outbuf));
- SSVAL(outbuf,smb_vwv11, 8);
+ get_challenge((uint8 *)smb_buf(req->outbuf));
+ SSVAL(req->outbuf,smb_vwv11, 8);
}
Protocol = PROTOCOL_LANMAN1;
/* Reply, SMBlockread, SMBwritelock supported. */
- SCVAL(outbuf,smb_flg,FLAG_REPLY|FLAG_SUPPORT_LOCKREAD);
- SSVAL(outbuf,smb_vwv2,max_recv);
- SSVAL(outbuf,smb_vwv3,lp_maxmux()); /* maxmux */
- SSVAL(outbuf,smb_vwv4,1);
- SSVAL(outbuf,smb_vwv5,raw); /* tell redirector we support
+ SCVAL(req->outbuf,smb_flg,FLAG_REPLY|FLAG_SUPPORT_LOCKREAD);
+ SSVAL(req->outbuf,smb_vwv2,max_recv);
+ SSVAL(req->outbuf,smb_vwv3,lp_maxmux()); /* maxmux */
+ SSVAL(req->outbuf,smb_vwv4,1);
+ SSVAL(req->outbuf,smb_vwv5,raw); /* tell redirector we support
readbraw writebraw (possibly) */
- SIVAL(outbuf,smb_vwv6,sys_getpid());
- SSVAL(outbuf,smb_vwv10, set_server_zone_offset(t)/60);
+ SIVAL(req->outbuf,smb_vwv6,sys_getpid());
+ SSVAL(req->outbuf,smb_vwv10, set_server_zone_offset(t)/60);
- srv_put_dos_date(outbuf,smb_vwv8,t);
+ srv_put_dos_date((char *)req->outbuf,smb_vwv8,t);
- return (smb_len(outbuf)+4);
+ return;
}
/****************************************************************************
Reply for the lanman 2.0 protocol.
****************************************************************************/
-static int reply_lanman2(char *inbuf, char *outbuf)
+static void reply_lanman2(struct smb_request *req, uint16 choice)
{
int raw = (lp_readraw()?1:0) | (lp_writeraw()?2:0);
int secword=0;
@@ -140,28 +142,28 @@ static int reply_lanman2(char *inbuf, char *outbuf)
if (global_encrypted_passwords_negotiated)
secword |= NEGOTIATE_SECURITY_CHALLENGE_RESPONSE;
- set_message(inbuf,outbuf,13,global_encrypted_passwords_negotiated?8:0,True);
- SSVAL(outbuf,smb_vwv1,secword);
- SIVAL(outbuf,smb_vwv6,sys_getpid());
+ reply_outbuf(req, 13, global_encrypted_passwords_negotiated?8:0);
+
+ SSVAL(req->outbuf,smb_vwv0,choice);
+ SSVAL(req->outbuf,smb_vwv1,secword);
+ SIVAL(req->outbuf,smb_vwv6,sys_getpid());
/* Create a token value and add it to the outgoing packet. */
if (global_encrypted_passwords_negotiated) {
- get_challenge(smb_buf(outbuf));
- SSVAL(outbuf,smb_vwv11, 8);
+ get_challenge((uint8 *)smb_buf(req->outbuf));
+ SSVAL(req->outbuf,smb_vwv11, 8);
}
Protocol = PROTOCOL_LANMAN2;
/* Reply, SMBlockread, SMBwritelock supported. */
- SCVAL(outbuf,smb_flg,FLAG_REPLY|FLAG_SUPPORT_LOCKREAD);
- SSVAL(outbuf,smb_vwv2,max_recv);
- SSVAL(outbuf,smb_vwv3,lp_maxmux());
- SSVAL(outbuf,smb_vwv4,1);
- SSVAL(outbuf,smb_vwv5,raw); /* readbraw and/or writebraw */
- SSVAL(outbuf,smb_vwv10, set_server_zone_offset(t)/60);
- srv_put_dos_date(outbuf,smb_vwv8,t);
-
- return (smb_len(outbuf)+4);
+ SCVAL(req->outbuf,smb_flg,FLAG_REPLY|FLAG_SUPPORT_LOCKREAD);
+ SSVAL(req->outbuf,smb_vwv2,max_recv);
+ SSVAL(req->outbuf,smb_vwv3,lp_maxmux());
+ SSVAL(req->outbuf,smb_vwv4,1);
+ SSVAL(req->outbuf,smb_vwv5,raw); /* readbraw and/or writebraw */
+ SSVAL(req->outbuf,smb_vwv10, set_server_zone_offset(t)/60);
+ srv_put_dos_date((char *)req->outbuf,smb_vwv8,t);
}
/****************************************************************************
@@ -242,7 +244,7 @@ static DATA_BLOB negprot_spnego(void)
Reply for the nt protocol.
****************************************************************************/
-static int reply_nt1(char *inbuf, char *outbuf)
+static void reply_nt1(struct smb_request *req, uint16 choice)
{
/* dual names + lock_and_read + nt SMBs + remote API calls */
int capabilities = CAP_NT_FIND|CAP_LOCK_AND_READ|
@@ -252,6 +254,7 @@ static int reply_nt1(char *inbuf, char *outbuf)
char *p, *q;
BOOL negotiate_spnego = False;
time_t t = time(NULL);
+ ssize_t ret;
global_encrypted_passwords_negotiated = lp_encrypted_passwords();
@@ -259,27 +262,30 @@ static int reply_nt1(char *inbuf, char *outbuf)
WinXP sets it and Vista does not. But we have to
distinguish from NT which doesn't set it either. */
- if ( (SVAL(inbuf, smb_flg2) & FLAGS2_EXTENDED_SECURITY) &&
- ((SVAL(inbuf, smb_flg2) & FLAGS2_UNKNOWN_BIT4) == 0) )
+ if ( (req->flags2 & FLAGS2_EXTENDED_SECURITY) &&
+ ((req->flags2 & FLAGS2_UNKNOWN_BIT4) == 0) )
{
if (get_remote_arch() != RA_SAMBA) {
set_remote_arch( RA_VISTA );
}
}
+ reply_outbuf(req,17,0);
+
/* do spnego in user level security if the client
supports it and we can do encrypted passwords */
if (global_encrypted_passwords_negotiated &&
(lp_security() != SEC_SHARE) &&
lp_use_spnego() &&
- (SVAL(inbuf, smb_flg2) & FLAGS2_EXTENDED_SECURITY)) {
+ (req->flags2 & FLAGS2_EXTENDED_SECURITY)) {
negotiate_spnego = True;
capabilities |= CAP_EXTENDED_SECURITY;
add_to_common_flags2(FLAGS2_EXTENDED_SECURITY);
- /* Ensure FLAGS2_EXTENDED_SECURITY gets set in this reply (already
- partially constructed. */
- SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2) | FLAGS2_EXTENDED_SECURITY);
+ /* Ensure FLAGS2_EXTENDED_SECURITY gets set in this reply
+ (already partially constructed. */
+ SSVAL(req->outbuf, smb_flg2,
+ req->flags2 | FLAGS2_EXTENDED_SECURITY);
}
capabilities |= CAP_NT_SMBS|CAP_RPC_REMOTE_APIS|CAP_UNICODE;
@@ -324,53 +330,72 @@ static int reply_nt1(char *inbuf, char *outbuf)
}
}
- set_message(inbuf,outbuf,17,0,True);
-
- SCVAL(outbuf,smb_vwv1,secword);
+ SSVAL(req->outbuf,smb_vwv0,choice);
+ SCVAL(req->outbuf,smb_vwv1,secword);
Protocol = PROTOCOL_NT1;
- SSVAL(outbuf,smb_vwv1+1,lp_maxmux()); /* maxmpx */
- SSVAL(outbuf,smb_vwv2+1,1); /* num vcs */
- SIVAL(outbuf,smb_vwv3+1,max_recv); /* max buffer. LOTS! */
- SIVAL(outbuf,smb_vwv5+1,0x10000); /* raw size. full 64k */
- SIVAL(outbuf,smb_vwv7+1,sys_getpid()); /* session key */
- SIVAL(outbuf,smb_vwv9+1,capabilities); /* capabilities */
- put_long_date(outbuf+smb_vwv11+1,t);
- SSVALS(outbuf,smb_vwv15+1,set_server_zone_offset(t)/60);
+ SSVAL(req->outbuf,smb_vwv1+1,lp_maxmux()); /* maxmpx */
+ SSVAL(req->outbuf,smb_vwv2+1,1); /* num vcs */
+ SIVAL(req->outbuf,smb_vwv3+1,max_recv); /* max buffer. LOTS! */
+ SIVAL(req->outbuf,smb_vwv5+1,0x10000); /* raw size. full 64k */
+ SIVAL(req->outbuf,smb_vwv7+1,sys_getpid()); /* session key */
+ SIVAL(req->outbuf,smb_vwv9+1,capabilities); /* capabilities */
+ put_long_date((char *)req->outbuf+smb_vwv11+1,t);
+ SSVALS(req->outbuf,smb_vwv15+1,set_server_zone_offset(t)/60);
- p = q = smb_buf(outbuf);
+ p = q = smb_buf(req->outbuf);
if (!negotiate_spnego) {
/* Create a token value and add it to the outgoing packet. */
if (global_encrypted_passwords_negotiated) {
+ uint8 chal[8];
/* note that we do not send a challenge at all if
we are using plaintext */
- get_challenge(p);
- SCVAL(outbuf,smb_vwv16+1,8);
- p += 8;
+ get_challenge(chal);
+ ret = message_push_blob(
+ &req->outbuf, data_blob_const(chal, sizeof(chal)));
+ if (ret == -1) {
+ DEBUG(0, ("Could not push challenge\n"));
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
+ }
+ SCVAL(req->outbuf, smb_vwv16+1, ret);
+ p += ret;
+ }
+ ret = message_push_string(&req->outbuf, lp_workgroup(),
+ STR_UNICODE|STR_TERMINATE
+ |STR_NOALIGN);
+ if (ret == -1) {
+ DEBUG(0, ("Could not push challenge\n"));
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
}
- p += srvstr_push(outbuf, p, lp_workgroup(), -1,
- STR_UNICODE|STR_TERMINATE|STR_NOALIGN);
DEBUG(3,("not using SPNEGO\n"));
} else {
DATA_BLOB spnego_blob = negprot_spnego();
if (spnego_blob.data == NULL) {
- return ERROR_NT(NT_STATUS_NO_MEMORY);
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
}
- memcpy(p, spnego_blob.data, spnego_blob.length);
- p += spnego_blob.length;
+ ret = message_push_blob(&req->outbuf, spnego_blob);
+ if (ret == -1) {
+ DEBUG(0, ("Could not push spnego blob\n"));
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
+ return;
+ }
+ p += ret;
data_blob_free(&spnego_blob);
- SCVAL(outbuf,smb_vwv16+1, 0);
+ SCVAL(req->outbuf,smb_vwv16+1, 0);
DEBUG(3,("using SPNEGO\n"));
}
- SSVAL(outbuf,smb_vwv17, p - q); /* length of challenge+domain strings */
- set_message_end(inbuf,outbuf, p);
-
- return (smb_len(outbuf)+4);
+ SSVAL(req->outbuf,smb_vwv17, p - q); /* length of challenge+domain
+ * strings */
+
+ return;
}
/* these are the protocol lists used for auto architecture detection:
@@ -458,7 +483,7 @@ protocol [LANMAN2.1]
static const struct {
const char *proto_name;
const char *short_name;
- int (*proto_reply_fn)(char *, char *);
+ void (*proto_reply_fn)(struct smb_request *req, uint16 choice);
int protocol_level;
} supported_protocols[] = {
{"NT LANMAN 1.0", "NT1", reply_nt1, PROTOCOL_NT1},
@@ -480,11 +505,9 @@ static const struct {
conn POINTER CAN BE NULL HERE !
****************************************************************************/
-int reply_negprot(connection_struct *conn,
- char *inbuf,char *outbuf, int size,
- int dum_buffsize)
+void reply_negprot(connection_struct *conn, struct smb_request *req)
{
- int outsize = set_message(inbuf,outbuf,1,0,True);
+ size_t size = smb_len(req->inbuf) + 4;
int choice= -1;
int protocol;
char *p;
@@ -503,18 +526,19 @@ int reply_negprot(connection_struct *conn,
}
done_negprot = True;
- if (inbuf[size-1] != '\0') {
+ if (req->inbuf[size-1] != '\0') {
DEBUG(0, ("negprot protocols not 0-terminated\n"));
+ reply_nterror(req, NT_STATUS_INVALID_PARAMETER);
END_PROFILE(SMBnegprot);
- return ERROR_NT(NT_STATUS_INVALID_PARAMETER);
+ return;
}
- p = smb_buf(inbuf)+1;
+ p = smb_buf(req->inbuf)+1;
num_cliprotos = 0;
cliprotos = NULL;
- while (smb_bufrem(inbuf, p) > 0) {
+ while (smb_bufrem(req->inbuf, p) > 0) {
char **tmp;
tmp = TALLOC_REALLOC_ARRAY(tmp_talloc_ctx(), cliprotos, char *,
@@ -522,8 +546,9 @@ int reply_negprot(connection_struct *conn,
if (tmp == NULL) {
DEBUG(0, ("talloc failed\n"));
TALLOC_FREE(cliprotos);
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
END_PROFILE(SMBnegprot);
- return ERROR_NT(NT_STATUS_NO_MEMORY);
+ return;
}
cliprotos = tmp;
@@ -532,8 +557,9 @@ int reply_negprot(connection_struct *conn,
== (size_t)-1) {
DEBUG(0, ("pull_ascii_talloc failed\n"));
TALLOC_FREE(cliprotos);
+ reply_nterror(req, NT_STATUS_NO_MEMORY);
END_PROFILE(SMBnegprot);
- return ERROR_NT(NT_STATUS_NO_MEMORY);
+ return;
}
DEBUG(3, ("Requested protocol [%s]\n",
@@ -592,7 +618,7 @@ int reply_negprot(connection_struct *conn,
set_remote_arch(RA_WIN95);
break;
case ARCH_WINNT:
- if(SVAL(inbuf,smb_flg2)==FLAGS2_WIN2K_SIGNATURE)
+ if(req->flags2 == FLAGS2_WIN2K_SIGNATURE)
set_remote_arch(RA_WIN2K);
else
set_remote_arch(RA_WINNT);
@@ -638,16 +664,14 @@ int reply_negprot(connection_struct *conn,
break;
}
- SSVAL(outbuf,smb_vwv0,choice);
if(choice != -1) {
fstrcpy(remote_proto,supported_protocols[protocol].short_name);
reload_services(True);
- outsize = supported_protocols[protocol].proto_reply_fn(inbuf, outbuf);
+ supported_protocols[protocol].proto_reply_fn(req, choice);
DEBUG(3,("Selected protocol %s\n",supported_protocols[protocol].proto_name));
} else {
DEBUG(0,("No protocol supported !\n"));
}
- SSVAL(outbuf,smb_vwv0,choice);
DEBUG( 5, ( "negprot index=%d\n", choice ) );
@@ -658,5 +682,5 @@ int reply_negprot(connection_struct *conn,
TALLOC_FREE(cliprotos);
END_PROFILE(SMBnegprot);
- return(outsize);
+ return;
}
diff --git a/source3/smbd/process.c b/source3/smbd/process.c
index ea8f37563b..5d37b43321 100644
--- a/source3/smbd/process.c
+++ b/source3/smbd/process.c
@@ -748,7 +748,7 @@ static const struct smb_message_struct {
/* 0x6f */ { NULL, NULL, NULL, 0 },
/* 0x70 */ { "SMBtcon",reply_tcon,NULL,0},
/* 0x71 */ { "SMBtdis",reply_tdis,NULL,DO_CHDIR},
-/* 0x72 */ { "SMBnegprot",reply_negprot,NULL,0},
+/* 0x72 */ { "SMBnegprot",NULL,reply_negprot,0},
/* 0x73 */ { "SMBsesssetupX",reply_sesssetup_and_X,NULL,0},
/* 0x74 */ { "SMBulogoffX", reply_ulogoffX,NULL, 0}, /* ulogoff doesn't give a valid TID */
/* 0x75 */ { "SMBtconX",reply_tcon_and_X,NULL,0},
generated by cgit (git 2.34.1) at 2024-12-18 17:09:55 +0000