From e5e5a1110fb4092a1221512627b1f9d03ec8839c Mon Sep 17 00:00:00 2001 From: Julien Kerihuel Date: Fri, 27 Aug 2010 14:04:07 +0200 Subject: Add unique IP address binding for client connections (EPM and ncacn_ip_tcp levels) This allows for binding strings like this: ncacn_ip_tcp:host[localaddress=192.168.2.1,seal] which will force the connection to be locally bound to the specified IP address Signed-off-by: Andrew Tridgell --- librpc/rpc/binding.c | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) (limited to 'librpc') diff --git a/librpc/rpc/binding.c b/librpc/rpc/binding.c index 5e9bef8e7c..feff5128ac 100644 --- a/librpc/rpc/binding.c +++ b/librpc/rpc/binding.c @@ -86,7 +86,8 @@ static const struct { {"bigendian", DCERPC_PUSH_BIGENDIAN}, {"smb2", DCERPC_SMB2}, {"hdrsign", DCERPC_HEADER_SIGNING}, - {"ndr64", DCERPC_NDR64} + {"ndr64", DCERPC_NDR64}, + {"localaddress", DCERPC_LOCALADDRESS} }; const char *epm_floor_string(TALLOC_CTX *mem_ctx, struct epm_floor *epm_floor) @@ -220,7 +221,12 @@ _PUBLIC_ char *dcerpc_binding_string(TALLOC_CTX *mem_ctx, const struct dcerpc_bi for (i=0;iflags & ncacn_options[i].flag) { - s = talloc_asprintf_append_buffer(s, ",%s", ncacn_options[i].name); + if (ncacn_options[i].flag == DCERPC_LOCALADDRESS && b->localaddress) { + s = talloc_asprintf_append_buffer(s, ",%s=%s", ncacn_options[i].name, + b->localaddress); + } else { + s = talloc_asprintf_append_buffer(s, ",%s", ncacn_options[i].name); + } if (!s) return NULL; } } @@ -313,6 +319,7 @@ _PUBLIC_ NTSTATUS dcerpc_parse_binding(TALLOC_CTX *mem_ctx, const char *s, struc b->flags = 0; b->assoc_group_id = 0; b->endpoint = NULL; + b->localaddress = NULL; if (!options) { *b_out = b; @@ -339,8 +346,17 @@ _PUBLIC_ NTSTATUS dcerpc_parse_binding(TALLOC_CTX *mem_ctx, const char *s, struc /* some options are pre-parsed for convenience */ for (i=0;b->options[i];i++) { for (j=0;joptions[i]) == 0) { + size_t opt_len = strlen(ncacn_options[j].name); + if (strncasecmp(ncacn_options[j].name, b->options[i], opt_len) == 0) { int k; + char c = b->options[i][opt_len]; + + if (ncacn_options[j].flag == DCERPC_LOCALADDRESS && c == '=') { + b->localaddress = talloc_strdup(b, &b->options[i][opt_len+1]); + } else if (c != 0) { + continue; + } + b->flags |= ncacn_options[j].flag; for (k=i;b->options[k];k++) { b->options[k] = b->options[k+1]; -- cgit