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libwbclient: Add wbcSidsToUnixIds

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Signed-off-by: Jeremy Allison <jra@samba.org>
This commit is contained in:
Volker Lendecke 2011-03-23 18:30:32 +01:00 committed by Jeremy Allison
parent 44f7fc4fdf
commit a93c49d7e6
2 changed files with 124 additions and 1 deletions
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93
nsswitch/libwbclient/wbc_idmap.c
View File

@ -23,6 +23,7 @@
#include "replace.h"
#include "libwbclient.h"
#include "../winbind_client.h"
/* Convert a Windows SID to a Unix uid, allocating an uid if needed */
wbcErr wbcSidToUid(const struct wbcDomainSid *sid, uid_t *puid)
@ -296,3 +297,95 @@ wbcErr wbcSetGidHwm(gid_t gid_hwm)
{
return WBC_ERR_NOT_IMPLEMENTED;
}
/* Convert a list of SIDs */
wbcErr wbcSidsToUnixIds(const struct wbcDomainSid *sids, uint32_t num_sids,
struct wbcUnixId *ids)
{
struct winbindd_request request;
struct winbindd_response response;
wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
int buflen, extra_len;
uint32_t i;
char *sidlist, *p, *extra_data;
buflen = num_sids * (WBC_SID_STRING_BUFLEN + 1) + 1;
sidlist = (char *)malloc(buflen);
if (sidlist == NULL) {
return WBC_ERR_NO_MEMORY;
}
p = sidlist;
for (i=0; i<num_sids; i++) {
int remaining;
int len;
remaining = buflen - (p - sidlist);
len = wbcSidToStringBuf(&sids[i], p, remaining);
if (len > remaining) {
free(sidlist);
return WBC_ERR_UNKNOWN_FAILURE;
}
p += len;
*p++ = '\n';
}
*p++ = '\0';
ZERO_STRUCT(request);
ZERO_STRUCT(response);
request.extra_data.data = sidlist;
request.extra_len = p - sidlist;
wbc_status = wbcRequestResponse(WINBINDD_SIDS_TO_XIDS,
&request, &response);
free(sidlist);
if (!WBC_ERROR_IS_OK(wbc_status)) {
return wbc_status;
}
extra_len = response.length - sizeof(struct winbindd_response);
extra_data = (char *)response.extra_data.data;
if ((extra_len <= 0) || (extra_data[extra_len-1] != '\0')) {
goto wbc_err_invalid;
}
p = extra_data;
for (i=0; i<num_sids; i++) {
struct wbcUnixId *id = &ids[i];
char *q;
switch (p[0]) {
case 'U':
id->type = WBC_ID_TYPE_UID;
id->id.uid = strtoul(p+1, &q, 10);
break;
case 'G':
id->type = WBC_ID_TYPE_GID;
id->id.gid = strtoul(p+1, &q, 10);
break;
default:
id->type = WBC_ID_TYPE_NOT_SPECIFIED;
q = p;
break;
};
if (q[0] != '\n') {
goto wbc_err_invalid;
}
p = q+1;
}
wbc_status = WBC_ERR_SUCCESS;
goto done;
wbc_err_invalid:
wbc_status = WBC_ERR_INVALID_RESPONSE;
done:
winbindd_free_response(&response);
return wbc_status;
}

32
nsswitch/libwbclient/wbclient.h
View File

@ -67,9 +67,10 @@ const char *wbcErrorString(wbcErr error);
* 0.5: Added wbcChangeTrustCredentials()
* 0.6: Made struct wbcInterfaceDetails char* members non-const
* 0.7: Added wbcSidToStringBuf()
* 0.8: Added wbcSidsToUnixIds() and wbcLookupSids()
**/
#define WBCLIENT_MAJOR_VERSION 0
#define WBCLIENT_MINOR_VERSION 7
#define WBCLIENT_MINOR_VERSION 8
#define WBCLIENT_VENDOR_VERSION "Samba libwbclient"
struct wbcLibraryDetails {
uint16_t major_version;
@ -792,6 +793,35 @@ wbcErr wbcGidToSid(gid_t gid,
wbcErr wbcQueryGidToSid(gid_t gid,
struct wbcDomainSid *sid);
enum wbcIdType {
WBC_ID_TYPE_NOT_SPECIFIED,
WBC_ID_TYPE_UID,
WBC_ID_TYPE_GID
};
union wbcUnixIdContainer {
uid_t uid;
gid_t gid;
};
struct wbcUnixId {
enum wbcIdType type;
union wbcUnixIdContainer id;
};
/**
* @brief Convert a list of sids to unix ids
*
* @param sids Pointer to an array of SIDs to convert
* @param num_sids Number of SIDs
* @param ids Preallocated output array for translated IDs
*
* @return #wbcErr
*
**/
wbcErr wbcSidsToUnixIds(const struct wbcDomainSid *sids, uint32_t num_sids,
struct wbcUnixId *ids);
/**
* @brief Obtain a new uid from Winbind
*