diff options
Diffstat (limited to 'source3/libcli/nbt')
| -rw-r--r-- | source3/libcli/nbt/libnbt.h | 353 | ||||
| -rw-r--r-- | source3/libcli/nbt/nbtname.c | 626 |
2 files changed, 0 insertions, 979 deletions
diff --git a/source3/libcli/nbt/libnbt.h b/source3/libcli/nbt/libnbt.h deleted file mode 100644 index d37a17c192..0000000000 --- a/source3/libcli/nbt/libnbt.h +++ /dev/null @@ -1,353 +0,0 @@ -/* - Unix SMB/CIFS implementation. - - a raw async NBT library - - Copyright (C) Andrew Tridgell 2005 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. -*/ - -#ifndef __LIBNBT_H__ -#define __LIBNBT_H__ - -#include "librpc/gen_ndr/nbt.h" -#include "librpc/ndr/libndr.h" - -/* - possible states for pending requests -*/ -enum nbt_request_state {NBT_REQUEST_SEND, - NBT_REQUEST_WAIT, - NBT_REQUEST_DONE, - NBT_REQUEST_TIMEOUT, - NBT_REQUEST_ERROR}; - -/* - a nbt name request -*/ -struct nbt_name_request { - struct nbt_name_request *next, *prev; - - enum nbt_request_state state; - - NTSTATUS status; - - /* the socket this was on */ - struct nbt_name_socket *nbtsock; - - /* where to send the request */ - struct socket_address *dest; - - /* timeout between retries */ - int timeout; - - /* how many retries to send on timeout */ - int num_retries; - - /* whether we have received a WACK */ - bool received_wack; - - /* the timeout event */ - struct timed_event *te; - - /* the name transaction id */ - uint16_t name_trn_id; - - /* is it a reply? */ - bool is_reply; - - /* the encoded request */ - DATA_BLOB encoded; - - /* shall we allow multiple replies? */ - bool allow_multiple_replies; - - unsigned int num_replies; - struct nbt_name_reply { - struct nbt_name_packet *packet; - struct socket_address *dest; - } *replies; - - /* information on what to do on completion */ - struct { - void (*fn)(struct nbt_name_request *); - void *_private; - } async; -}; - - - -/* - context structure for operations on name queries -*/ -struct nbt_name_socket { - struct socket_context *sock; - struct event_context *event_ctx; -/* - struct smb_iconv_convenience *iconv_convenience; -*/ - /* a queue of requests pending to be sent */ - struct nbt_name_request *send_queue; - - /* the fd event */ - struct fd_event *fde; - - /* mapping from name_trn_id to pending event */ - struct idr_context *idr; - - /* how many requests are waiting for a reply */ - uint16_t num_pending; - - /* what to do with incoming request packets */ - struct { - void (*handler)(struct nbt_name_socket *, struct nbt_name_packet *, - struct socket_address *); - void *_private; - } incoming; - - /* what to do with unexpected replies */ - struct { - void (*handler)(struct nbt_name_socket *, struct nbt_name_packet *, - struct socket_address *); - void *_private; - } unexpected; -}; - - -/* a simple name query */ -struct nbt_name_query { - struct { - struct nbt_name name; - const char *dest_addr; - uint16_t dest_port; - bool broadcast; - bool wins_lookup; - int timeout; /* in seconds */ - int retries; - } in; - struct { - const char *reply_from; - struct nbt_name name; - int16_t num_addrs; - const char **reply_addrs; - } out; -}; - -/* a simple name status query */ -struct nbt_name_status { - struct { - struct nbt_name name; - const char *dest_addr; - uint16_t dest_port; - int timeout; /* in seconds */ - int retries; - } in; - struct { - const char *reply_from; - struct nbt_name name; - struct nbt_rdata_status status; - } out; -}; - -/* a name registration request */ -struct nbt_name_register { - struct { - struct nbt_name name; - const char *dest_addr; - uint16_t dest_port; - const char *address; - uint16_t nb_flags; - bool register_demand; - bool broadcast; - bool multi_homed; - uint32_t ttl; - int timeout; /* in seconds */ - int retries; - } in; - struct { - const char *reply_from; - struct nbt_name name; - const char *reply_addr; - uint8_t rcode; - } out; -}; - -/* a send 3 times then demand name broadcast name registration */ -struct nbt_name_register_bcast { - struct { - struct nbt_name name; - const char *dest_addr; - uint16_t dest_port; - const char *address; - uint16_t nb_flags; - uint32_t ttl; - } in; -}; - - -/* wins name register with multiple wins servers to try and multiple - addresses to register */ -struct nbt_name_register_wins { - struct { - struct nbt_name name; - const char **wins_servers; - uint16_t wins_port; - const char **addresses; - uint16_t nb_flags; - uint32_t ttl; - } in; - struct { - const char *wins_server; - uint8_t rcode; - } out; -}; - - - -/* a name refresh request */ -struct nbt_name_refresh { - struct { - struct nbt_name name; - const char *dest_addr; - uint16_t dest_port; - const char *address; - uint16_t nb_flags; - bool broadcast; - uint32_t ttl; - int timeout; /* in seconds */ - int retries; - } in; - struct { - const char *reply_from; - struct nbt_name name; - const char *reply_addr; - uint8_t rcode; - } out; -}; - -/* wins name refresh with multiple wins servers to try and multiple - addresses to register */ -struct nbt_name_refresh_wins { - struct { - struct nbt_name name; - const char **wins_servers; - uint16_t wins_port; - const char **addresses; - uint16_t nb_flags; - uint32_t ttl; - } in; - struct { - const char *wins_server; - uint8_t rcode; - } out; -}; - - -/* a name release request */ -struct nbt_name_release { - struct { - struct nbt_name name; - const char *dest_addr; - uint16_t dest_port; - const char *address; - uint16_t nb_flags; - bool broadcast; - int timeout; /* in seconds */ - int retries; - } in; - struct { - const char *reply_from; - struct nbt_name name; - const char *reply_addr; - uint8_t rcode; - } out; -}; - -struct nbt_name_socket *nbt_name_socket_init(TALLOC_CTX *mem_ctx, - struct event_context *event_ctx); - /*, - struct smb_iconv_convenience *iconv_convenience);*/ -struct nbt_name_request *nbt_name_query_send(struct nbt_name_socket *nbtsock, - struct nbt_name_query *io); -NTSTATUS nbt_name_query_recv(struct nbt_name_request *req, - TALLOC_CTX *mem_ctx, struct nbt_name_query *io); -NTSTATUS nbt_name_query(struct nbt_name_socket *nbtsock, - TALLOC_CTX *mem_ctx, struct nbt_name_query *io); -struct nbt_name_request *nbt_name_status_send(struct nbt_name_socket *nbtsock, - struct nbt_name_status *io); -NTSTATUS nbt_name_status_recv(struct nbt_name_request *req, - TALLOC_CTX *mem_ctx, struct nbt_name_status *io); -NTSTATUS nbt_name_status(struct nbt_name_socket *nbtsock, - TALLOC_CTX *mem_ctx, struct nbt_name_status *io); - -NTSTATUS nbt_name_dup(TALLOC_CTX *mem_ctx, struct nbt_name *name, struct nbt_name *newname); -NTSTATUS nbt_name_to_blob(TALLOC_CTX *mem_ctx, DATA_BLOB *blob, struct nbt_name *name); -NTSTATUS nbt_name_from_blob(TALLOC_CTX *mem_ctx, const DATA_BLOB *blob, struct nbt_name *name); -void nbt_choose_called_name(TALLOC_CTX *mem_ctx, struct nbt_name *n, const char *name, int type); -char *nbt_name_string(TALLOC_CTX *mem_ctx, const struct nbt_name *name); -NTSTATUS nbt_name_register(struct nbt_name_socket *nbtsock, - TALLOC_CTX *mem_ctx, struct nbt_name_register *io); -NTSTATUS nbt_name_refresh(struct nbt_name_socket *nbtsock, - TALLOC_CTX *mem_ctx, struct nbt_name_refresh *io); -NTSTATUS nbt_name_release(struct nbt_name_socket *nbtsock, - TALLOC_CTX *mem_ctx, struct nbt_name_release *io); -NTSTATUS nbt_name_register_wins(struct nbt_name_socket *nbtsock, - TALLOC_CTX *mem_ctx, - struct nbt_name_register_wins *io); -NTSTATUS nbt_name_refresh_wins(struct nbt_name_socket *nbtsock, - TALLOC_CTX *mem_ctx, - struct nbt_name_refresh_wins *io); -NTSTATUS nbt_name_register_recv(struct nbt_name_request *req, - TALLOC_CTX *mem_ctx, struct nbt_name_register *io); -struct nbt_name_request *nbt_name_register_send(struct nbt_name_socket *nbtsock, - struct nbt_name_register *io); -NTSTATUS nbt_name_release_recv(struct nbt_name_request *req, - TALLOC_CTX *mem_ctx, struct nbt_name_release *io); - -struct nbt_name_request *nbt_name_release_send(struct nbt_name_socket *nbtsock, - struct nbt_name_release *io); - -NTSTATUS nbt_name_refresh_recv(struct nbt_name_request *req, - TALLOC_CTX *mem_ctx, struct nbt_name_refresh *io); - -NTSTATUS nbt_set_incoming_handler(struct nbt_name_socket *nbtsock, - void (*handler)(struct nbt_name_socket *, struct nbt_name_packet *, - struct socket_address *), - void *_private); -NTSTATUS nbt_name_reply_send(struct nbt_name_socket *nbtsock, - struct socket_address *dest, - struct nbt_name_packet *request); - - -NDR_SCALAR_PROTO(wrepl_nbt_name, const struct nbt_name *); -NDR_SCALAR_PROTO(nbt_string, const char *); -NDR_BUFFER_PROTO(nbt_name, struct nbt_name); -NTSTATUS nbt_rcode_to_ntstatus(uint8_t rcode); - -struct composite_context; -struct composite_context *nbt_name_register_bcast_send(struct nbt_name_socket *nbtsock, - struct nbt_name_register_bcast *io); -NTSTATUS nbt_name_register_bcast_recv(struct composite_context *c); -struct composite_context *nbt_name_register_wins_send(struct nbt_name_socket *nbtsock, - struct nbt_name_register_wins *io); -NTSTATUS nbt_name_refresh_wins_recv(struct composite_context *c, TALLOC_CTX *mem_ctx, - struct nbt_name_refresh_wins *io); -struct composite_context *nbt_name_refresh_wins_send(struct nbt_name_socket *nbtsock, - struct nbt_name_refresh_wins *io); -NTSTATUS nbt_name_register_wins_recv(struct composite_context *c, TALLOC_CTX *mem_ctx, - struct nbt_name_register_wins *io); - - -#endif /* __LIBNBT_H__ */ diff --git a/source3/libcli/nbt/nbtname.c b/source3/libcli/nbt/nbtname.c deleted file mode 100644 index fbb9550655..0000000000 --- a/source3/libcli/nbt/nbtname.c +++ /dev/null @@ -1,626 +0,0 @@ -/* - Unix SMB/CIFS implementation. - - manipulate nbt name structures - - Copyright (C) Andrew Tridgell 2005 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. -*/ - -/* - see rfc1002 for the detailed format of compressed names -*/ - -#include "includes.h" -#include "librpc/gen_ndr/ndr_nbt.h" -#include "librpc/gen_ndr/ndr_misc.h" - -/* don't allow an unlimited number of name components */ -#define MAX_COMPONENTS 10 - -/** - print a nbt string -*/ -_PUBLIC_ void ndr_print_nbt_string(struct ndr_print *ndr, const char *name, const char *s) -{ - ndr_print_string(ndr, name, s); -} - -/* - pull one component of a nbt_string -*/ -static enum ndr_err_code ndr_pull_component(struct ndr_pull *ndr, - uint8_t **component, - uint32_t *offset, - uint32_t *max_offset) -{ - uint8_t len; - uint_t loops = 0; - while (loops < 5) { - if (*offset >= ndr->data_size) { - return ndr_pull_error(ndr, NDR_ERR_STRING, - "BAD NBT NAME component"); - } - len = ndr->data[*offset]; - if (len == 0) { - *offset += 1; - *max_offset = MAX(*max_offset, *offset); - *component = NULL; - return NDR_ERR_SUCCESS; - } - if ((len & 0xC0) == 0xC0) { - /* its a label pointer */ - if (1 + *offset >= ndr->data_size) { - return ndr_pull_error(ndr, NDR_ERR_STRING, - "BAD NBT NAME component"); - } - *max_offset = MAX(*max_offset, *offset + 2); - *offset = ((len&0x3F)<<8) | ndr->data[1 + *offset]; - *max_offset = MAX(*max_offset, *offset); - loops++; - continue; - } - if ((len & 0xC0) != 0) { - /* its a reserved length field */ - return ndr_pull_error(ndr, NDR_ERR_STRING, - "BAD NBT NAME component"); - } - if (*offset + len + 2 > ndr->data_size) { - return ndr_pull_error(ndr, NDR_ERR_STRING, - "BAD NBT NAME component"); - } - *component = (uint8_t*)talloc_strndup(ndr, (const char *)&ndr->data[1 + *offset], len); - NDR_ERR_HAVE_NO_MEMORY(*component); - *offset += len + 1; - *max_offset = MAX(*max_offset, *offset); - return NDR_ERR_SUCCESS; - } - - /* too many pointers */ - return ndr_pull_error(ndr, NDR_ERR_STRING, "BAD NBT NAME component"); -} - -/** - pull a nbt_string from the wire -*/ -_PUBLIC_ enum ndr_err_code ndr_pull_nbt_string(struct ndr_pull *ndr, int ndr_flags, const char **s) -{ - uint32_t offset = ndr->offset; - uint32_t max_offset = offset; - unsigned num_components; - char *name; - - if (!(ndr_flags & NDR_SCALARS)) { - return NDR_ERR_SUCCESS; - } - - name = NULL; - - /* break up name into a list of components */ - for (num_components=0;num_components<MAX_COMPONENTS;num_components++) { - uint8_t *component = NULL; - NDR_CHECK(ndr_pull_component(ndr, &component, &offset, &max_offset)); - if (component == NULL) break; - if (name) { - name = talloc_asprintf_append_buffer(name, ".%s", component); - NDR_ERR_HAVE_NO_MEMORY(name); - } else { - name = (char *)component; - } - } - if (num_components == MAX_COMPONENTS) { - return ndr_pull_error(ndr, NDR_ERR_STRING, - "BAD NBT NAME too many components"); - } - if (num_components == 0) { - name = talloc_strdup(ndr, ""); - NDR_ERR_HAVE_NO_MEMORY(name); - } - - (*s) = name; - ndr->offset = max_offset; - - return NDR_ERR_SUCCESS; -} - -/** - push a nbt string to the wire -*/ -_PUBLIC_ enum ndr_err_code ndr_push_nbt_string(struct ndr_push *ndr, int ndr_flags, const char *s) -{ - if (!(ndr_flags & NDR_SCALARS)) { - return NDR_ERR_SUCCESS; - } - - while (s && *s) { - enum ndr_err_code ndr_err; - char *compname; - size_t complen; - uint32_t offset; - - /* see if we have pushed the remaing string allready, - * if so we use a label pointer to this string - */ - ndr_err = ndr_token_retrieve_cmp_fn(&ndr->nbt_string_list, s, &offset, (comparison_fn_t)strcmp, false); - if (NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { - uint8_t b[2]; - - if (offset > 0x3FFF) { - return ndr_push_error(ndr, NDR_ERR_STRING, - "offset for nbt string label pointer %u[%08X] > 0x00003FFF", - offset, offset); - } - - b[0] = 0xC0 | (offset>>8); - b[1] = (offset & 0xFF); - - return ndr_push_bytes(ndr, b, 2); - } - - complen = strcspn(s, "."); - - /* we need to make sure the length fits into 6 bytes */ - if (complen >= 0x3F) { - return ndr_push_error(ndr, NDR_ERR_STRING, - "component length %u[%08X] > 0x00003F", - (unsigned)complen, (unsigned)complen); - } - - compname = talloc_asprintf(ndr, "%c%*.*s", - (unsigned char)complen, - (unsigned char)complen, - (unsigned char)complen, s); - NDR_ERR_HAVE_NO_MEMORY(compname); - - /* remember the current componemt + the rest of the string - * so it can be reused later - */ - NDR_CHECK(ndr_token_store(ndr, &ndr->nbt_string_list, s, ndr->offset)); - - /* push just this component into the blob */ - NDR_CHECK(ndr_push_bytes(ndr, (const uint8_t *)compname, complen+1)); - talloc_free(compname); - - s += complen; - if (*s == '.') s++; - } - - /* if we reach the end of the string and have pushed the last component - * without using a label pointer, we need to terminate the string - */ - return ndr_push_bytes(ndr, (const uint8_t *)"", 1); -} - - -/* - decompress a 'compressed' name component - */ -static bool decompress_name(char *name, enum nbt_name_type *type) -{ - int i; - for (i=0;name[2*i];i++) { - uint8_t c1 = name[2*i]; - uint8_t c2 = name[1+(2*i)]; - if (c1 < 'A' || c1 > 'P' || - c2 < 'A' || c2 > 'P') { - return false; - } - name[i] = ((c1-'A')<<4) | (c2-'A'); - } - name[i] = 0; - if (i == 16) { - *type = (enum nbt_name_type)(name[15]); - name[15] = 0; - i--; - } else { - *type = NBT_NAME_CLIENT; - } - - /* trim trailing spaces */ - for (;i>0 && name[i-1]==' ';i--) { - name[i-1] = 0; - } - - return true; -} - - -/* - compress a name component - */ -static uint8_t *compress_name(TALLOC_CTX *mem_ctx, - const uint8_t *name, enum nbt_name_type type) -{ - uint8_t *cname; - int i; - uint8_t pad_char; - - if (strlen((const char *)name) > 15) { - return NULL; - } - - cname = talloc_array(mem_ctx, uint8_t, 33); - if (cname == NULL) return NULL; - - for (i=0;name[i];i++) { - cname[2*i] = 'A' + (name[i]>>4); - cname[1+2*i] = 'A' + (name[i]&0xF); - } - if (strcmp((const char *)name, "*") == 0) { - pad_char = 0; - } else { - pad_char = ' '; - } - for (;i<15;i++) { - cname[2*i] = 'A' + (pad_char>>4); - cname[1+2*i] = 'A' + (pad_char&0xF); - } - - pad_char = type; - cname[2*i] = 'A' + (pad_char>>4); - cname[1+2*i] = 'A' + (pad_char&0xF); - - cname[32] = 0; - return cname; -} - - -/** - pull a nbt name from the wire -*/ -_PUBLIC_ enum ndr_err_code ndr_pull_nbt_name(struct ndr_pull *ndr, int ndr_flags, struct nbt_name *r) -{ - uint8_t *scope; - char *cname; - const char *s; - bool ok; - - if (!(ndr_flags & NDR_SCALARS)) { - return NDR_ERR_SUCCESS; - } - - NDR_CHECK(ndr_pull_nbt_string(ndr, ndr_flags, &s)); - - scope = (uint8_t *)strchr(s, '.'); - if (scope) { - *scope = 0; - r->scope = talloc_strdup(ndr->current_mem_ctx, (const char *)&scope[1]); - NDR_ERR_HAVE_NO_MEMORY(r->scope); - } else { - r->scope = NULL; - } - - cname = discard_const_p(char, s); - - /* the first component is limited to 16 bytes in the DOS charset, - which is 32 in the 'compressed' form */ - if (strlen(cname) > 32) { - return ndr_pull_error(ndr, NDR_ERR_STRING, - "NBT NAME cname > 32"); - } - - /* decompress the first component */ - ok = decompress_name(cname, &r->type); - if (!ok) { - return ndr_pull_error(ndr, NDR_ERR_STRING, - "NBT NAME failed to decompress"); - } - - r->name = talloc_strdup(ndr->current_mem_ctx, cname); - NDR_ERR_HAVE_NO_MEMORY(r->name); - - talloc_free(cname); - - return NDR_ERR_SUCCESS; -} - -/** - push a nbt name to the wire -*/ -_PUBLIC_ enum ndr_err_code ndr_push_nbt_name(struct ndr_push *ndr, int ndr_flags, const struct nbt_name *r) -{ - uint8_t *cname, *fullname; - enum ndr_err_code ndr_err; - - if (!(ndr_flags & NDR_SCALARS)) { - return NDR_ERR_SUCCESS; - } - - if (strlen(r->name) > 15) { - return ndr_push_error(ndr, NDR_ERR_STRING, - "nbt_name longer as 15 chars: %s", - r->name); - } - - cname = compress_name(ndr, (const uint8_t *)r->name, r->type); - NDR_ERR_HAVE_NO_MEMORY(cname); - - if (r->scope) { - fullname = (uint8_t *)talloc_asprintf(ndr, "%s.%s", cname, r->scope); - NDR_ERR_HAVE_NO_MEMORY(fullname); - talloc_free(cname); - } else { - fullname = cname; - } - - ndr_err = ndr_push_nbt_string(ndr, ndr_flags, (const char *)fullname); - - return ndr_err; -} - - -/** - copy a nbt name structure -*/ -_PUBLIC_ NTSTATUS nbt_name_dup(TALLOC_CTX *mem_ctx, struct nbt_name *name, struct nbt_name *newname) -{ - *newname = *name; - newname->name = talloc_strdup(mem_ctx, newname->name); - NT_STATUS_HAVE_NO_MEMORY(newname->name); - newname->scope = talloc_strdup(mem_ctx, newname->scope); - if (name->scope) { - NT_STATUS_HAVE_NO_MEMORY(newname->scope); - } - return NT_STATUS_OK; -} - -/** - push a nbt name into a blob -*/ -_PUBLIC_ NTSTATUS nbt_name_to_blob(TALLOC_CTX *mem_ctx, DATA_BLOB *blob, struct nbt_name *name) -{ - enum ndr_err_code ndr_err; - - ndr_err = ndr_push_struct_blob(blob, mem_ctx, name, (ndr_push_flags_fn_t)ndr_push_nbt_name); - if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { - return ndr_map_error2ntstatus(ndr_err); - } - - return NT_STATUS_OK; -} - -/** - pull a nbt name from a blob -*/ -_PUBLIC_ NTSTATUS nbt_name_from_blob(TALLOC_CTX *mem_ctx, const DATA_BLOB *blob, struct nbt_name *name) -{ - enum ndr_err_code ndr_err; - - ndr_err = ndr_pull_struct_blob(blob, mem_ctx, name, - (ndr_pull_flags_fn_t)ndr_pull_nbt_name); - if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { - return ndr_map_error2ntstatus(ndr_err); - } - - return NT_STATUS_OK; -} - - -/** - choose a name to use when calling a server in a NBT session request. - we use heuristics to see if the name we have been given is a IP - address, or a too-long name. If it is then use *SMBSERVER, or a - truncated name -*/ -_PUBLIC_ void nbt_choose_called_name(TALLOC_CTX *mem_ctx, - struct nbt_name *n, const char *name, int type) -{ - n->scope = NULL; - n->type = type; - - if ((name == NULL) || is_ipaddress(name)) { - n->name = "*SMBSERVER"; - return; - } - if (strlen(name) > 15) { - const char *p = strchr(name, '.'); - char *s; - if (p - name > 15) { - n->name = "*SMBSERVER"; - return; - } - s = talloc_strndup(mem_ctx, name, PTR_DIFF(p, name)); - n->name = talloc_strdup_upper(mem_ctx, s); - return; - } - - n->name = talloc_strdup_upper(mem_ctx, name); -} - - -/* - escape a string into a form containing only a small set of characters, - the rest is hex encoded. This is similar to URL encoding -*/ -static const char *nbt_hex_encode(TALLOC_CTX *mem_ctx, const char *s) -{ - int i, len; - char *ret; - const char *valid_chars = "_-.$@ "; -#define NBT_CHAR_ALLOW(c) (isalnum((unsigned char)c) || strchr(valid_chars, c)) - - for (len=i=0;s[i];i++,len++) { - if (!NBT_CHAR_ALLOW(s[i])) { - len += 2; - } - } - - ret = talloc_array(mem_ctx, char, len+1); - if (ret == NULL) return NULL; - - for (len=i=0;s[i];i++) { - if (NBT_CHAR_ALLOW(s[i])) { - ret[len++] = s[i]; - } else { - snprintf(&ret[len], 4, "%%%02x", (unsigned char)s[i]); - len += 3; - } - } - ret[len] = 0; - - return ret; -} - - -/** - form a string for a NBT name -*/ -_PUBLIC_ char *nbt_name_string(TALLOC_CTX *mem_ctx, const struct nbt_name *name) -{ - TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx); - char *ret; - if (name->scope) { - ret = talloc_asprintf(mem_ctx, "%s<%02x>-%s", - nbt_hex_encode(tmp_ctx, name->name), - name->type, - nbt_hex_encode(tmp_ctx, name->scope)); - } else { - ret = talloc_asprintf(mem_ctx, "%s<%02x>", - nbt_hex_encode(tmp_ctx, name->name), - name->type); - } - talloc_free(tmp_ctx); - return ret; -} - -/** - pull a nbt name, WINS Replication uses another on wire format for nbt name -*/ -_PUBLIC_ enum ndr_err_code ndr_pull_wrepl_nbt_name(struct ndr_pull *ndr, int ndr_flags, const struct nbt_name **_r) -{ - struct nbt_name *r; - uint8_t *namebuf; - uint32_t namebuf_len; - - if (!(ndr_flags & NDR_SCALARS)) { - return NDR_ERR_SUCCESS; - } - - NDR_CHECK(ndr_pull_align(ndr, 4)); - NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &namebuf_len)); - if (namebuf_len < 1 || namebuf_len > 255) { - return ndr_pull_error(ndr, NDR_ERR_ALLOC, "value out of range"); - } - NDR_PULL_ALLOC_N(ndr, namebuf, namebuf_len); - NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, namebuf, namebuf_len)); - - NDR_PULL_ALLOC(ndr, r); - - /* oh wow, what a nasty bug in windows ... */ - if (namebuf[0] == 0x1b && namebuf_len >= 16) { - namebuf[0] = namebuf[15]; - namebuf[15] = 0x1b; - } - - if (namebuf_len < 17) { - r->type = 0x00; - - r->name = talloc_strndup(r, (char *)namebuf, namebuf_len); - if (!r->name) return ndr_pull_error(ndr, NDR_ERR_ALLOC, "out of memory"); - - r->scope= NULL; - - talloc_free(namebuf); - *_r = r; - return NDR_ERR_SUCCESS; - } - - r->type = namebuf[15]; - - namebuf[15] = '\0'; - trim_string((char *)namebuf, NULL, " "); - r->name = talloc_strdup(r, (char *)namebuf); - if (!r->name) return ndr_pull_error(ndr, NDR_ERR_ALLOC, "out of memory"); - - if (namebuf_len > 18) { - r->scope = talloc_strndup(r, (char *)(namebuf+17), namebuf_len-17); - if (!r->scope) return ndr_pull_error(ndr, NDR_ERR_ALLOC, "out of memory"); - } else { - r->scope = NULL; - } - - talloc_free(namebuf); - *_r = r; - return NDR_ERR_SUCCESS; -} - -/** - push a nbt name, WINS Replication uses another on wire format for nbt name -*/ -_PUBLIC_ enum ndr_err_code ndr_push_wrepl_nbt_name(struct ndr_push *ndr, int ndr_flags, const struct nbt_name *r) -{ - uint8_t *namebuf; - uint32_t namebuf_len; - uint32_t _name_len; - uint32_t scope_len = 0; - - if (r == NULL) { - return ndr_push_error(ndr, NDR_ERR_INVALID_POINTER, - "wrepl_nbt_name NULL pointer"); - } - - if (!(ndr_flags & NDR_SCALARS)) { - return NDR_ERR_SUCCESS; - } - - _name_len = strlen(r->name); - if (_name_len > 15) { - return ndr_push_error(ndr, NDR_ERR_STRING, - "wrepl_nbt_name longer as 15 chars: %s", - r->name); - } - - if (r->scope) { - scope_len = strlen(r->scope); - } - if (scope_len > 238) { - return ndr_push_error(ndr, NDR_ERR_STRING, - "wrepl_nbt_name scope longer as 238 chars: %s", - r->scope); - } - - namebuf = (uint8_t *)talloc_asprintf(ndr, "%-15s%c%s", - r->name, 'X', - (r->scope?r->scope:"")); - if (!namebuf) return ndr_push_error(ndr, NDR_ERR_ALLOC, "out of memory"); - - namebuf_len = strlen((char *)namebuf) + 1; - - /* - * we need to set the type here, and use a place-holder in the talloc_asprintf() - * as the type can be 0x00, and then the namebuf_len = strlen(namebuf); would give wrong results - */ - namebuf[15] = r->type; - - /* oh wow, what a nasty bug in windows ... */ - if (r->type == 0x1b) { - namebuf[15] = namebuf[0]; - namebuf[0] = 0x1b; - } - - NDR_CHECK(ndr_push_align(ndr, 4)); - NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, namebuf_len)); - NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, namebuf, namebuf_len)); - - talloc_free(namebuf); - return NDR_ERR_SUCCESS; -} - -_PUBLIC_ void ndr_print_wrepl_nbt_name(struct ndr_print *ndr, const char *name, const struct nbt_name *r) -{ - char *s = nbt_name_string(ndr, r); - ndr_print_string(ndr, name, s); - talloc_free(s); -} |