diff options
Diffstat (limited to 'source/libsmb/clifile.c')
| -rw-r--r-- | source/libsmb/clifile.c | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/source/libsmb/clifile.c b/source/libsmb/clifile.c index a3fa811e29f..bf7923ec788 100644 --- a/source/libsmb/clifile.c +++ b/source/libsmb/clifile.c @@ -1161,3 +1161,257 @@ NTSTATUS cli_raw_ioctl(struct cli_state *cli, int fnum, uint32 code, DATA_BLOB * return NT_STATUS_OK; } + +/********************************************************* + Set an extended attribute utility fn. +*********************************************************/ + +static BOOL cli_set_ea(struct cli_state *cli, uint16 setup, char *param, unsigned int param_len, + const char *ea_name, const char *ea_val, size_t ea_len) +{ + unsigned int data_len = 0; + char *data = NULL; + char *rparam=NULL, *rdata=NULL; + char *p; + size_t ea_namelen = strlen(ea_name); + + data_len = 4 + 4 + ea_namelen + 1 + ea_len; + data = malloc(data_len); + if (!data) { + return False; + } + p = data; + SIVAL(p,0,data_len); + p += 4; + SCVAL(p, 0, 0); /* EA flags. */ + SCVAL(p, 1, ea_namelen); + SSVAL(p, 2, ea_len); + memcpy(p+4, ea_name, ea_namelen+1); /* Copy in the name. */ + memcpy(p+4+ea_namelen+1, ea_val, ea_len); + + if (!cli_send_trans(cli, SMBtrans2, + NULL, /* name */ + -1, 0, /* fid, flags */ + &setup, 1, 0, /* setup, length, max */ + param, param_len, 2, /* param, length, max */ + data, data_len, cli->max_xmit /* data, length, max */ + )) { + return False; + } + + if (!cli_receive_trans(cli, SMBtrans2, + &rparam, ¶m_len, + &rdata, &data_len)) { + return False; + } + + SAFE_FREE(data); + SAFE_FREE(rdata); + SAFE_FREE(rparam); + + return True; +} + +/********************************************************* + Set an extended attribute on a pathname. +*********************************************************/ + +BOOL cli_set_ea_path(struct cli_state *cli, const char *path, const char *ea_name, const char *ea_val, size_t ea_len) +{ + uint16 setup = TRANSACT2_SETPATHINFO; + unsigned int param_len = 0; + char param[sizeof(pstring)+6]; + size_t srclen = 2*(strlen(path)+1); + char *p; + + memset(param, 0, sizeof(param)); + SSVAL(param,0,SMB_INFO_SET_EA); + p = ¶m[6]; + + p += clistr_push(cli, p, path, MIN(srclen, sizeof(param)-6), STR_TERMINATE); + param_len = PTR_DIFF(p, param); + + return cli_set_ea(cli, setup, param, param_len, ea_name, ea_val, ea_len); +} + +/********************************************************* + Set an extended attribute on an fnum. +*********************************************************/ + +BOOL cli_set_ea_fnum(struct cli_state *cli, int fnum, const char *ea_name, const char *ea_val, size_t ea_len) +{ + char param[6]; + uint16 setup = TRANSACT2_SETFILEINFO; + + memset(param, 0, 6); + SSVAL(param,0,fnum); + SSVAL(param,2,SMB_INFO_SET_EA); + + return cli_set_ea(cli, setup, param, 6, ea_name, ea_val, ea_len); +} + +/********************************************************* + Get an extended attribute list tility fn. +*********************************************************/ + +static BOOL cli_get_ea_list(struct cli_state *cli, + uint16 setup, char *param, unsigned int param_len, + TALLOC_CTX *ctx, + size_t *pnum_eas, + struct ea_struct **pea_list) +{ + unsigned int data_len = 0; + unsigned int rparam_len, rdata_len; + char *rparam=NULL, *rdata=NULL; + char *p; + size_t ea_size; + size_t num_eas; + BOOL ret = False; + struct ea_struct *ea_list; + + *pnum_eas = 0; + *pea_list = NULL; + + if (!cli_send_trans(cli, SMBtrans2, + NULL, /* Name */ + -1, 0, /* fid, flags */ + &setup, 1, 0, /* setup, length, max */ + param, param_len, 10, /* param, length, max */ + NULL, data_len, cli->max_xmit /* data, length, max */ + )) { + return False; + } + + if (!cli_receive_trans(cli, SMBtrans2, + &rparam, &rparam_len, + &rdata, &rdata_len)) { + return False; + } + + if (!rdata || rdata_len < 4) { + goto out; + } + + ea_size = (size_t)IVAL(rdata,0); + if (ea_size > rdata_len) { + goto out; + } + + if (ea_size == 0) { + /* No EA's present. */ + ret = True; + goto out; + } + + p = rdata + 4; + ea_size -= 4; + + /* Validate the EA list and count it. */ + for (num_eas = 0; ea_size >= 4; num_eas++) { + unsigned int ea_namelen = CVAL(p,1); + unsigned int ea_valuelen = SVAL(p,2); + if (ea_namelen == 0) { + goto out; + } + if (4 + ea_namelen + 1 + ea_valuelen > ea_size) { + goto out; + } + ea_size -= 4 + ea_namelen + 1 + ea_valuelen; + p += 4 + ea_namelen + 1 + ea_valuelen; + } + + if (num_eas == 0) { + ret = True; + goto out; + } + + *pnum_eas = num_eas; + if (!pea_list) { + /* Caller only wants number of EA's. */ + ret = True; + goto out; + } + + ea_list = (struct ea_struct *)talloc(ctx, num_eas*sizeof(struct ea_struct)); + if (!ea_list) { + goto out; + } + + ea_size = (size_t)IVAL(rdata,0); + p = rdata + 4; + + for (num_eas = 0; num_eas < *pnum_eas; num_eas++ ) { + struct ea_struct *ea = &ea_list[num_eas]; + fstring unix_ea_name; + unsigned int ea_namelen = CVAL(p,1); + unsigned int ea_valuelen = SVAL(p,2); + + ea->flags = CVAL(p,0); + unix_ea_name[0] = '\0'; + pull_ascii_fstring(unix_ea_name, p + 4); + ea->name = talloc_strdup(ctx, unix_ea_name); + /* Ensure the value is null terminated (in case it's a string). */ + ea->value = data_blob_talloc(ctx, NULL, ea_valuelen + 1); + if (!ea->value.data) { + goto out; + } + if (ea_valuelen) { + memcpy(ea->value.data, p+4+ea_namelen+1, ea_valuelen); + } + ea->value.data[ea_valuelen] = 0; + ea->value.length--; + p += 4 + ea_namelen + 1 + ea_valuelen; + } + + *pea_list = ea_list; + ret = True; + + out : + + SAFE_FREE(rdata); + SAFE_FREE(rparam); + return ret; +} + +/********************************************************* + Get an extended attribute list from a pathname. +*********************************************************/ + +BOOL cli_get_ea_list_path(struct cli_state *cli, const char *path, + TALLOC_CTX *ctx, + size_t *pnum_eas, + struct ea_struct **pea_list) +{ + uint16 setup = TRANSACT2_QPATHINFO; + unsigned int param_len = 0; + char param[sizeof(pstring)+6]; + char *p; + + p = param; + memset(p, 0, 6); + SSVAL(p, 0, SMB_INFO_QUERY_ALL_EAS); + p += 6; + p += clistr_push(cli, p, path, sizeof(pstring)-6, STR_TERMINATE); + param_len = PTR_DIFF(p, param); + + return cli_get_ea_list(cli, setup, param, param_len, ctx, pnum_eas, pea_list); +} + +/********************************************************* + Get an extended attribute list from an fnum. +*********************************************************/ + +BOOL cli_get_ea_list_fnum(struct cli_state *cli, int fnum, + TALLOC_CTX *ctx, + size_t *pnum_eas, + struct ea_struct **pea_list) +{ + uint16 setup = TRANSACT2_QFILEINFO; + char param[6]; + + memset(param, 0, 6); + SSVAL(param,0,fnum); + SSVAL(param,2,SMB_INFO_SET_EA); + + return cli_get_ea_list(cli, setup, param, 6, ctx, pnum_eas, pea_list); +} |