#include <asm/unistd.h>
#include <openssl/des.h>
-_syscall5(int, afs_syscall, int, subcall,
- char *, path,
- int, cmd,
- char *, cmarg,
- int, follow);
-
struct ClearToken {
uint32 AuthHandle;
char HandShakeKey[8];
return result;
}
-static BOOL afs_decode_token(const char *string, char **cell,
- DATA_BLOB *ticket, struct ClearToken *ct)
-{
- DATA_BLOB blob;
- struct ClearToken result_ct;
-
- char *s = strdup(string);
-
- char *t;
-
- if ((t = strtok(s, "\n")) == NULL) {
- DEBUG(10, ("strtok failed\n"));
- return False;
- }
-
- *cell = strdup(t);
-
- if ((t = strtok(NULL, "\n")) == NULL) {
- DEBUG(10, ("strtok failed\n"));
- return False;
- }
-
- if (sscanf(t, "%u", &result_ct.AuthHandle) != 1) {
- DEBUG(10, ("sscanf AuthHandle failed\n"));
- return False;
- }
-
- if ((t = strtok(NULL, "\n")) == NULL) {
- DEBUG(10, ("strtok failed\n"));
- return False;
- }
-
- blob = base64_decode_data_blob(t);
-
- if ( (blob.data == NULL) ||
- (blob.length != sizeof(result_ct.HandShakeKey) )) {
- DEBUG(10, ("invalid key: %x/%d\n", (uint32)blob.data,
- blob.length));
- return False;
- }
-
- memcpy(result_ct.HandShakeKey, blob.data, blob.length);
-
- data_blob_free(&blob);
-
- if ((t = strtok(NULL, "\n")) == NULL) {
- DEBUG(10, ("strtok failed\n"));
- return False;
- }
-
- if (sscanf(t, "%u", &result_ct.ViceId) != 1) {
- DEBUG(10, ("sscanf ViceId failed\n"));
- return False;
- }
-
- if ((t = strtok(NULL, "\n")) == NULL) {
- DEBUG(10, ("strtok failed\n"));
- return False;
- }
-
- if (sscanf(t, "%u", &result_ct.BeginTimestamp) != 1) {
- DEBUG(10, ("sscanf BeginTimestamp failed\n"));
- return False;
- }
-
- if ((t = strtok(NULL, "\n")) == NULL) {
- DEBUG(10, ("strtok failed\n"));
- return False;
- }
-
- if (sscanf(t, "%u", &result_ct.EndTimestamp) != 1) {
- DEBUG(10, ("sscanf EndTimestamp failed\n"));
- return False;
- }
-
- if ((t = strtok(NULL, "\n")) == NULL) {
- DEBUG(10, ("strtok failed\n"));
- return False;
- }
-
- blob = base64_decode_data_blob(t);
-
- if (blob.data == NULL) {
- DEBUG(10, ("Could not get ticket\n"));
- return False;
- }
-
- *ticket = blob;
- *ct = result_ct;
-
- return True;
-}
-
-/*
- Put an AFS token into the Kernel so that it can authenticate against
- the AFS server. This assumes correct local uid settings.
-
- This is currently highly Linux and OpenAFS-specific. The correct API
- call for this would be ktc_SetToken. But to do that we would have to
- import a REALLY big bunch of libraries which I would currently like
- to avoid.
-*/
-
-static BOOL afs_settoken(const char *cell,
- const struct ClearToken *ctok,
- DATA_BLOB ticket)
-{
- int ret;
- struct {
- char *in, *out;
- uint16 in_size, out_size;
- } iob;
-
- char buf[1024];
- char *p = buf;
- int tmp;
-
- memcpy(p, &ticket.length, sizeof(uint32));
- p += sizeof(uint32);
- memcpy(p, ticket.data, ticket.length);
- p += ticket.length;
-
- tmp = sizeof(struct ClearToken);
- memcpy(p, &tmp, sizeof(uint32));
- p += sizeof(uint32);
- memcpy(p, ctok, tmp);
- p += tmp;
-
- tmp = 0;
-
- memcpy(p, &tmp, sizeof(uint32));
- p += sizeof(uint32);
-
- tmp = strlen(cell);
- if (tmp >= MAXKTCREALMLEN) {
- DEBUG(1, ("Realm too long\n"));
- return False;
- }
-
- strncpy(p, cell, tmp);
- p += tmp;
- *p = 0;
- p +=1;
-
- iob.in = buf;
- iob.in_size = PTR_DIFF(p,buf);
- iob.out = buf;
- iob.out_size = sizeof(buf);
-
-#if 0
- file_save("/tmp/ioctlbuf", iob.in, iob.in_size);
-#endif
-
- ret = afs_syscall(AFSCALL_PIOCTL, 0, VIOCSETTOK, (char *)&iob, 0);
-
- DEBUG(10, ("afs VIOCSETTOK returned %d\n", ret));
- return (ret == 0);
-}
-
-BOOL afs_settoken_str(const char *token_string)
-{
- DATA_BLOB ticket;
- struct ClearToken ct;
- BOOL result;
- char *cell;
-
- if (!afs_decode_token(token_string, &cell, &ticket, &ct))
- return False;
-
- if (geteuid() != 0)
- ct.ViceId = getuid();
-
- result = afs_settoken(cell, &ct, ticket);
-
- SAFE_FREE(cell);
- data_blob_free(&ticket);
-
- return result;
- }
-
/* Create a ClearToken and an encrypted ticket. ClearToken has not yet the
* ViceId set, this should be set by the caller. */
pstring afs_username;
char *cell;
BOOL result;
+ char *ticket_str;
struct ClearToken ct;
/* For which Unix-UID do we want to set the token? */
ct.ViceId = getuid();
- {
- char *str, *new_cell;
- DATA_BLOB test_ticket;
- struct ClearToken test_ct;
-
- hex_encode(ct.HandShakeKey, sizeof(ct.HandShakeKey), &str);
- DEBUG(10, ("Key: %s\n", str));
- free(str);
-
- str = afs_encode_token(cell, ticket, &ct);
+ ticket_str = afs_encode_token(cell, ticket, &ct);
- if (!afs_decode_token(str, &new_cell, &test_ticket,
- &test_ct)) {
- DEBUG(0, ("Could not decode token"));
- goto decode_failed;
- }
+ result = afs_settoken_str(ticket_str);
- if (strcmp(cell, new_cell) != 0) {
- DEBUG(0, ("cell changed\n"));
- }
-
- if ((ticket.length != test_ticket.length) ||
- (memcmp(ticket.data, test_ticket.data,
- ticket.length) != 0)) {
- DEBUG(0, ("Ticket changed\n"));
- }
-
- if (memcmp(&ct, &test_ct, sizeof(ct)) != 0) {
- DEBUG(0, ("ClearToken changed\n"));
- }
-
- data_blob_free(&test_ticket);
-
- decode_failed:
- SAFE_FREE(str);
- SAFE_FREE(new_cell);
- }
-
- result = afs_settoken(cell, &ct, ticket);
+ SAFE_FREE(ticket_str);
data_blob_free(&ticket);
return True;
}
-BOOL afs_settoken_str(const char *token_string)
-{
- return False;
-}
-
char *afs_createtoken_str(const char *username, const char *cell)
{
return False;
--- /dev/null
+/*
+ * Unix SMB/CIFS implementation.
+ * Generate AFS tickets
+ * Copyright (C) Volker Lendecke 2004
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "includes.h"
+
+#ifdef WITH_FAKE_KASERVER
+
+#include <afs/stds.h>
+#include <afs/afs.h>
+#include <afs/auth.h>
+#include <afs/venus.h>
+#include <asm/unistd.h>
+#include <openssl/des.h>
+
+_syscall5(int, afs_syscall, int, subcall,
+ char *, path,
+ int, cmd,
+ char *, cmarg,
+ int, follow);
+
+struct ClearToken {
+ uint32 AuthHandle;
+ char HandShakeKey[8];
+ uint32 ViceId;
+ uint32 BeginTimestamp;
+ uint32 EndTimestamp;
+};
+
+static BOOL afs_decode_token(const char *string, char **cell,
+ DATA_BLOB *ticket, struct ClearToken *ct)
+{
+ DATA_BLOB blob;
+ struct ClearToken result_ct;
+
+ char *s = strdup(string);
+
+ char *t;
+
+ if ((t = strtok(s, "\n")) == NULL) {
+ DEBUG(10, ("strtok failed\n"));
+ return False;
+ }
+
+ *cell = strdup(t);
+
+ if ((t = strtok(NULL, "\n")) == NULL) {
+ DEBUG(10, ("strtok failed\n"));
+ return False;
+ }
+
+ if (sscanf(t, "%u", &result_ct.AuthHandle) != 1) {
+ DEBUG(10, ("sscanf AuthHandle failed\n"));
+ return False;
+ }
+
+ if ((t = strtok(NULL, "\n")) == NULL) {
+ DEBUG(10, ("strtok failed\n"));
+ return False;
+ }
+
+ blob = base64_decode_data_blob(t);
+
+ if ( (blob.data == NULL) ||
+ (blob.length != sizeof(result_ct.HandShakeKey) )) {
+ DEBUG(10, ("invalid key: %x/%d\n", (uint32)blob.data,
+ blob.length));
+ return False;
+ }
+
+ memcpy(result_ct.HandShakeKey, blob.data, blob.length);
+
+ data_blob_free(&blob);
+
+ if ((t = strtok(NULL, "\n")) == NULL) {
+ DEBUG(10, ("strtok failed\n"));
+ return False;
+ }
+
+ if (sscanf(t, "%u", &result_ct.ViceId) != 1) {
+ DEBUG(10, ("sscanf ViceId failed\n"));
+ return False;
+ }
+
+ if ((t = strtok(NULL, "\n")) == NULL) {
+ DEBUG(10, ("strtok failed\n"));
+ return False;
+ }
+
+ if (sscanf(t, "%u", &result_ct.BeginTimestamp) != 1) {
+ DEBUG(10, ("sscanf BeginTimestamp failed\n"));
+ return False;
+ }
+
+ if ((t = strtok(NULL, "\n")) == NULL) {
+ DEBUG(10, ("strtok failed\n"));
+ return False;
+ }
+
+ if (sscanf(t, "%u", &result_ct.EndTimestamp) != 1) {
+ DEBUG(10, ("sscanf EndTimestamp failed\n"));
+ return False;
+ }
+
+ if ((t = strtok(NULL, "\n")) == NULL) {
+ DEBUG(10, ("strtok failed\n"));
+ return False;
+ }
+
+ blob = base64_decode_data_blob(t);
+
+ if (blob.data == NULL) {
+ DEBUG(10, ("Could not get ticket\n"));
+ return False;
+ }
+
+ *ticket = blob;
+ *ct = result_ct;
+
+ return True;
+}
+
+/*
+ Put an AFS token into the Kernel so that it can authenticate against
+ the AFS server. This assumes correct local uid settings.
+
+ This is currently highly Linux and OpenAFS-specific. The correct API
+ call for this would be ktc_SetToken. But to do that we would have to
+ import a REALLY big bunch of libraries which I would currently like
+ to avoid.
+*/
+
+static BOOL afs_settoken(const char *cell,
+ const struct ClearToken *ctok,
+ DATA_BLOB ticket)
+{
+ int ret;
+ struct {
+ char *in, *out;
+ uint16 in_size, out_size;
+ } iob;
+
+ char buf[1024];
+ char *p = buf;
+ int tmp;
+
+ memcpy(p, &ticket.length, sizeof(uint32));
+ p += sizeof(uint32);
+ memcpy(p, ticket.data, ticket.length);
+ p += ticket.length;
+
+ tmp = sizeof(struct ClearToken);
+ memcpy(p, &tmp, sizeof(uint32));
+ p += sizeof(uint32);
+ memcpy(p, ctok, tmp);
+ p += tmp;
+
+ tmp = 0;
+
+ memcpy(p, &tmp, sizeof(uint32));
+ p += sizeof(uint32);
+
+ tmp = strlen(cell);
+ if (tmp >= MAXKTCREALMLEN) {
+ DEBUG(1, ("Realm too long\n"));
+ return False;
+ }
+
+ strncpy(p, cell, tmp);
+ p += tmp;
+ *p = 0;
+ p +=1;
+
+ iob.in = buf;
+ iob.in_size = PTR_DIFF(p,buf);
+ iob.out = buf;
+ iob.out_size = sizeof(buf);
+
+#if 0
+ file_save("/tmp/ioctlbuf", iob.in, iob.in_size);
+#endif
+
+ ret = afs_syscall(AFSCALL_PIOCTL, 0, VIOCSETTOK, (char *)&iob, 0);
+
+ DEBUG(10, ("afs VIOCSETTOK returned %d\n", ret));
+ return (ret == 0);
+}
+
+BOOL afs_settoken_str(const char *token_string)
+{
+ DATA_BLOB ticket;
+ struct ClearToken ct;
+ BOOL result;
+ char *cell;
+
+ if (!afs_decode_token(token_string, &cell, &ticket, &ct))
+ return False;
+
+ if (geteuid() != 0)
+ ct.ViceId = getuid();
+
+ result = afs_settoken(cell, &ct, ticket);
+
+ SAFE_FREE(cell);
+ data_blob_free(&ticket);
+
+ return result;
+}
+
+#else
+
+BOOL afs_settoken_str(const char *token_string)
+{
+ return False;
+}
+
+#endif
--- /dev/null
+/*
+ * Convert AFS acls to NT acls and vice versa.
+ *
+ * Copyright (C) Volker Lendecke, 2003
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "includes.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_VFS
+
+#include <afs/stds.h>
+#include <afs/afs.h>
+#include <afs/auth.h>
+#include <afs/venus.h>
+#include <afs/prs_fs.h>
+
+#define MAXSIZE 2048
+
+extern DOM_SID global_sid_World;
+extern DOM_SID global_sid_Builtin_Administrators;
+extern DOM_SID global_sid_Builtin_Backup_Operators;
+extern DOM_SID global_sid_Authenticated_Users;
+extern DOM_SID global_sid_NULL;
+
+extern int afs_syscall(int, char *, int, char *, int);
+
+struct afs_ace {
+ BOOL positive;
+ char *name;
+ DOM_SID sid;
+ enum SID_NAME_USE type;
+ uint32 rights;
+ struct afs_ace *next;
+};
+
+struct afs_acl {
+ TALLOC_CTX *ctx;
+ int type;
+ int num_aces;
+ struct afs_ace *acelist;
+};
+
+struct afs_iob {
+ char *in, *out;
+ uint16 in_size, out_size;
+};
+
+
+static BOOL init_afs_acl(struct afs_acl *acl)
+{
+ ZERO_STRUCT(*acl);
+ acl->ctx = talloc_init("afs_acl");
+ if (acl->ctx == NULL) {
+ DEBUG(10, ("Could not init afs_acl"));
+ return False;
+ }
+ return True;
+}
+
+static void free_afs_acl(struct afs_acl *acl)
+{
+ talloc_destroy(acl->ctx);
+}
+
+static struct afs_ace *clone_afs_ace(TALLOC_CTX *mem_ctx, struct afs_ace *ace)
+{
+ struct afs_ace *result = talloc(mem_ctx, sizeof(struct afs_ace));
+
+ if (result == NULL)
+ return NULL;
+
+ *result = *ace;
+
+ result->next = NULL;
+ result->name = talloc_strdup(mem_ctx, ace->name);
+
+ if (result->name == NULL) {
+ return NULL;
+ }
+
+ return result;
+}
+
+
+/* Ok, this is sort-of a hack. We assume here that we have winbind users in
+ * AFS. And yet another copy of parse_domain_user.... */
+
+static BOOL parse_domain_user(const char *domuser, fstring domain,
+ fstring user)
+{
+ char *p = strchr(domuser,*lp_winbind_separator());
+
+ if (p==NULL) {
+ return False;
+ }
+
+ fstrcpy(user, p+1);
+ fstrcpy(domain, domuser);
+ domain[PTR_DIFF(p, domuser)] = 0;
+ strupper_m(domain);
+
+ return True;
+}
+
+static struct afs_ace *new_afs_ace(TALLOC_CTX *mem_ctx,
+ BOOL positive,
+ const char *name, uint32 rights)
+{
+ DOM_SID sid;
+ enum SID_NAME_USE type;
+ struct afs_ace *result;
+
+ if (strcmp(name, "system:administrators") == 0) {
+
+ sid_copy(&sid, &global_sid_Builtin_Administrators);
+ type = SID_NAME_ALIAS;
+
+ } else if (strcmp(name, "system:anyuser") == 0) {
+
+ sid_copy(&sid, &global_sid_World);
+ type = SID_NAME_ALIAS;
+
+ } else if (strcmp(name, "system:authuser") == 0) {
+
+ sid_copy(&sid, &global_sid_Authenticated_Users);
+ type = SID_NAME_WKN_GRP;
+
+ } else if (strcmp(name, "system:backup") == 0) {
+
+ sid_copy(&sid, &global_sid_Builtin_Backup_Operators);
+ type = SID_NAME_ALIAS;
+
+ } else {
+
+ fstring user, domain;
+
+ if (!parse_domain_user(name, domain, user)) {
+ fstrcpy(user, name);
+ fstrcpy(domain, lp_workgroup());
+ }
+
+ if (!lookup_name(domain, user, &sid, &type)) {
+ DEBUG(10, ("Could not find AFS user %s\n", name));
+
+ sid_copy(&sid, &global_sid_NULL);
+ type = SID_NAME_UNKNOWN;
+
+ }
+ }
+
+ result = talloc(mem_ctx, sizeof(struct afs_ace));
+
+ if (result == NULL) {
+ DEBUG(0, ("Could not talloc AFS ace\n"));
+ return NULL;
+ }
+
+ result->name = talloc_strdup(mem_ctx, name);
+ if (result->name == NULL) {
+ DEBUG(0, ("Could not talloc AFS ace name\n"));
+ return NULL;
+ }
+
+ result->sid = sid;
+ result->type = type;
+
+ result->positive = positive;
+ result->rights = rights;
+
+ return result;
+}
+
+static void add_afs_ace(struct afs_acl *acl,
+ BOOL positive,
+ const char *name, uint32 rights)
+{
+ struct afs_ace *ace;
+
+ ace = new_afs_ace(acl->ctx, positive, name, rights);
+
+ ace->next = acl->acelist;
+ acl->acelist = ace;
+
+ acl->num_aces += 1;
+
+ DEBUG(10, ("add_afs_ace: Added %s entry for %s with rights %d\n",
+ ace->positive?"positive":"negative",
+ ace->name, ace->rights));
+
+ return;
+}
+
+/* AFS ACLs in string form are a long string of fields delimited with \n.
+ *
+ * First line: Number of positive entries
+ * Second line: Number of negative entries
+ * Third and following lines: The entries themselves
+ *
+ * An ACE is a line of two fields, delimited by \t.
+ *
+ * First field: Name
+ * Second field: Rights
+ */
+
+static BOOL parse_afs_acl(struct afs_acl *acl, const char *acl_str)
+{
+ int nplus, nminus;
+ int aces;
+
+ char str[MAXSIZE+1];
+ char *p = str;
+
+ strncpy(str, acl_str, MAXSIZE);
+
+ if (sscanf(p, "%d", &nplus) != 1)
+ return False;
+
+ DEBUG(10, ("Found %d positive entries\n", nplus));
+
+ if ((p = strchr(p, '\n')) == NULL)
+ return False;
+ p += 1;
+
+ if (sscanf(p, "%d", &nminus) != 1)
+ return False;
+
+ DEBUG(10, ("Found %d negative entries\n", nminus));
+
+ if ((p = strchr(p, '\n')) == NULL)
+ return False;
+ p += 1;
+
+ for (aces = nplus+nminus; aces > 0; aces--)
+ {
+
+ const char *name;
+ uint32 rights;
+
+ name = p;
+
+ if ((p = strchr(p, '\t')) == NULL)
+ return False;
+ *p = '\0';
+ p += 1;
+
+ if (sscanf(p, "%d", &rights) != 1)
+ return False;
+
+ if ((p = strchr(p, '\n')) == NULL)
+ return False;
+ p += 1;
+
+ add_afs_ace(acl, nplus>0, name, rights);
+
+ nplus -= 1;
+ }
+
+ return True;
+}
+
+static BOOL unparse_afs_acl(struct afs_acl *acl, char *acl_str)
+{
+ /* TODO: String length checks!!!! */
+
+ int positives = 0;
+ int negatives = 0;
+ fstring line;
+
+ *acl_str = 0;
+
+ struct afs_ace *ace = acl->acelist;
+
+ while (ace != NULL) {
+ if (ace->positive)
+ positives++;
+ else
+ negatives++;
+ ace = ace->next;
+ }
+
+ fstr_sprintf(line, "%d\n", positives);
+ safe_strcat(acl_str, line, MAXSIZE);
+
+ fstr_sprintf(line, "%d\n", negatives);
+ safe_strcat(acl_str, line, MAXSIZE);
+
+ ace = acl->acelist;
+
+ while (ace != NULL) {
+ fstr_sprintf(line, "%s\t%d\n", ace->name, ace->rights);
+ safe_strcat(acl_str, line, MAXSIZE);
+ ace = ace->next;
+ }
+ return True;
+}
+
+static uint32 afs_to_nt_file_rights(uint32 rights)
+{
+ uint32 result = 0;
+
+ if (rights & PRSFS_READ)
+ result |= FILE_READ_DATA | FILE_READ_EA |
+ FILE_EXECUTE | FILE_READ_ATTRIBUTES |
+ READ_CONTROL_ACCESS | SYNCHRONIZE_ACCESS;
+
+ if (rights & PRSFS_WRITE)
+ result |= FILE_WRITE_DATA | FILE_WRITE_ATTRIBUTES |
+ FILE_WRITE_EA | FILE_APPEND_DATA;
+
+ if (rights & PRSFS_LOCK)
+ result |= WRITE_OWNER_ACCESS;
+
+ if (rights & PRSFS_DELETE)
+ result |= DELETE_ACCESS;
+
+ return result;
+}
+
+static uint32 afs_to_nt_dir_rights(uint32 rights)
+{
+ uint32 result = 0;
+
+ if (rights & PRSFS_INSERT)
+ result |= FILE_ADD_FILE | FILE_ADD_SUBDIRECTORY;
+
+ if (rights & PRSFS_LOOKUP)
+ result |= FILE_READ_DATA | FILE_READ_EA |
+ FILE_EXECUTE | FILE_READ_ATTRIBUTES |
+ READ_CONTROL_ACCESS | SYNCHRONIZE_ACCESS;
+
+ if (rights & PRSFS_WRITE)
+ result |= FILE_WRITE_ATTRIBUTES | FILE_WRITE_DATA |
+ FILE_APPEND_DATA | FILE_WRITE_EA;
+
+ if ((rights & (PRSFS_INSERT|PRSFS_LOOKUP|PRSFS_DELETE)) ==
+ (PRSFS_INSERT|PRSFS_LOOKUP|PRSFS_DELETE))
+ result |= FILE_WRITE_ATTRIBUTES | FILE_WRITE_EA |
+ GENERIC_WRITE_ACCESS;
+
+ if (rights & PRSFS_DELETE)
+ result |= DELETE_ACCESS;
+
+ if (rights & PRSFS_ADMINISTER)
+ result |= FILE_DELETE_CHILD | WRITE_DAC_ACCESS |
+ WRITE_OWNER_ACCESS;
+
+ return result;
+}
+
+static uint32 nt_to_afs_dir_rights(uint32 rights)
+{
+ uint32 result = 0;
+
+ if (rights & (GENERIC_ALL_ACCESS|WRITE_DAC_ACCESS)) {
+ result |= PRSFS_READ | PRSFS_WRITE | PRSFS_INSERT |
+ PRSFS_LOOKUP | PRSFS_DELETE | PRSFS_LOCK |
+ PRSFS_ADMINISTER;
+ }
+
+ if (rights & (GENERIC_READ_ACCESS|FILE_READ_DATA)) {
+ result |= PRSFS_READ | PRSFS_LOOKUP;
+ }
+
+ if (rights & (GENERIC_WRITE_ACCESS|FILE_WRITE_DATA)) {
+ result |= PRSFS_WRITE | PRSFS_INSERT | PRSFS_DELETE |
+ PRSFS_LOCK;
+ }
+
+ return result;
+}
+
+static size_t afs_to_nt_acl(struct afs_acl *afs_acl,
+ struct files_struct *fsp,
+ uint32 security_info,
+ struct security_descriptor_info **ppdesc)
+{
+ SEC_ACE *nt_ace_list;
+ DOM_SID owner_sid, group_sid;
+ SEC_ACCESS mask;
+ SMB_STRUCT_STAT sbuf;
+ SEC_ACL *psa = NULL;
+ int good_aces;
+ size_t sd_size;
+ TALLOC_CTX *mem_ctx = main_loop_talloc_get();
+
+ struct afs_ace *afs_ace;
+
+ if (fsp->is_directory || fsp->fd == -1) {
+ /* Get the stat struct for the owner info. */
+ if(SMB_VFS_STAT(fsp->conn,fsp->fsp_name, &sbuf) != 0) {
+ return 0;
+ }
+ } else {
+ if(SMB_VFS_FSTAT(fsp,fsp->fd,&sbuf) != 0) {
+ return 0;
+ }
+ }
+
+ uid_to_sid(&owner_sid, sbuf.st_uid);
+ gid_to_sid(&group_sid, sbuf.st_gid);
+
+ nt_ace_list = (SEC_ACE *)malloc(afs_acl->num_aces * sizeof(SEC_ACE));
+
+ if (nt_ace_list == NULL)
+ return 0;
+
+ afs_ace = afs_acl->acelist;
+ good_aces = 0;
+
+ while (afs_ace != NULL) {
+ uint32 nt_rights;
+
+ if (afs_ace->type == SID_NAME_UNKNOWN) {
+ DEBUG(10, ("Ignoring unknown name %s\n",
+ afs_ace->name));
+ afs_ace = afs_ace->next;
+ continue;
+ }
+
+ if (fsp->is_directory)
+ nt_rights = afs_to_nt_dir_rights(afs_ace->rights);
+ else
+ nt_rights = afs_to_nt_file_rights(afs_ace->rights);
+
+ init_sec_access(&mask, nt_rights);
+ init_sec_ace(&nt_ace_list[good_aces++], &(afs_ace->sid),
+ SEC_ACE_TYPE_ACCESS_ALLOWED, mask,
+ SEC_ACE_FLAG_OBJECT_INHERIT |
+ SEC_ACE_FLAG_CONTAINER_INHERIT);
+ afs_ace = afs_ace->next;
+ }
+
+ psa = make_sec_acl(mem_ctx, NT4_ACL_REVISION,
+ good_aces, nt_ace_list);
+ if (psa == NULL)
+ return 0;
+
+
+ *ppdesc = make_sec_desc(mem_ctx, SEC_DESC_REVISION,
+ SEC_DESC_SELF_RELATIVE,
+ (security_info & OWNER_SECURITY_INFORMATION)
+ ? &owner_sid : NULL,
+ (security_info & GROUP_SECURITY_INFORMATION)
+ ? &group_sid : NULL,
+ NULL, psa, &sd_size);
+
+ return sd_size;
+}
+
+static BOOL nt_to_afs_acl(uint32 security_info_sent,
+ struct security_descriptor_info *psd,
+ struct afs_acl *afs_acl)
+{
+ SEC_ACL *dacl;
+ int i;
+
+ /* Currently we *only* look at the dacl */
+
+ if (((security_info_sent & DACL_SECURITY_INFORMATION) == 0) ||
+ (psd->dacl == NULL))
+ return True;
+
+ if (!init_afs_acl(afs_acl))
+ return False;
+
+ dacl = psd->dacl;
+
+ for (i = 0; i < dacl->num_aces; i++) {
+ SEC_ACE *ace = &(dacl->ace[i]);
+ fstring dom_name;
+ fstring name;
+ enum SID_NAME_USE name_type;
+
+ if (ace->type != SEC_ACE_TYPE_ACCESS_ALLOWED) {
+ /* First cut: Only positive ACEs */
+ return False;
+ }
+
+ if (sid_compare(&ace->trustee,
+ &global_sid_Builtin_Administrators) == 0) {
+
+ fstrcpy(name, "system:administrators");
+
+ } else if (sid_compare(&ace->trustee,
+ &global_sid_World) == 0) {
+
+ fstrcpy(name, "system:anyuser");
+
+ } else if (sid_compare(&ace->trustee,
+ &global_sid_Authenticated_Users) == 0) {
+
+ fstrcpy(name, "system:authuser");
+
+ } else if (sid_compare(&ace->trustee,
+ &global_sid_Builtin_Backup_Operators)
+ == 0) {
+
+ fstrcpy(name, "system:backup");
+
+ } else {
+
+ if (!lookup_sid(&ace->trustee,
+ dom_name, name, &name_type)) {
+ DEBUG(3, ("Could not lookup sid %s\n",
+ sid_string_static(&ace->trustee)));
+ return False;
+ }
+
+ if (strcmp(dom_name, lp_workgroup()) != 0) {
+ DEBUG(3, ("Got SID for domain %s, not mine\n",
+ dom_name));
+ return False;
+ }
+
+ if ( (name_type == SID_NAME_USER) ||
+ (name_type == SID_NAME_DOM_GRP) ) {
+ fstring only_username;
+ fstrcpy(only_username, name);
+ fstr_sprintf(name, "%s%s%s",
+ dom_name, lp_winbind_separator(),
+ only_username);
+ strlower_m(name);
+ }
+ }
+
+ add_afs_ace(afs_acl, True, name,
+ nt_to_afs_dir_rights(ace->info.mask));
+ }
+
+ return True;
+}
+
+static BOOL afs_get_afs_acl(char *filename, struct afs_acl *acl)
+{
+ struct afs_iob iob;
+
+ int ret;
+
+ char space[MAXSIZE];
+
+ DEBUG(5, ("afs_get_afs_acl: %s\n", filename));
+
+ iob.in_size = 0;
+ iob.out_size = MAXSIZE;
+ iob.in = iob.out = space;
+
+ ret = afs_syscall(AFSCALL_PIOCTL, filename, VIOCGETAL,
+ (char *)&iob, 0);
+
+ if (ret) {
+ DEBUG(1, ("got error from PIOCTL: %d\n", ret));
+ return False;
+ }
+
+ if (!init_afs_acl(acl))
+ return False;
+
+ if (!parse_afs_acl(acl, space)) {
+ DEBUG(1, ("Could not parse AFS acl\n"));
+ free_afs_acl(acl);
+ return False;
+ }
+
+ return True;
+}
+
+static size_t afs_get_nt_acl(struct files_struct *fsp, uint32 security_info,
+ struct security_descriptor_info **ppdesc)
+{
+ struct afs_acl acl;
+ size_t sd_size;
+
+ DEBUG(5, ("afs_get_nt_acl: %s\n", fsp->fsp_name));
+
+ if (!afs_get_afs_acl(fsp->fsp_name, &acl)) {
+ return 0;
+ }
+
+ sd_size = afs_to_nt_acl(&acl, fsp, security_info, ppdesc);
+
+ free_afs_acl(&acl);
+
+ return sd_size;
+}
+
+/* For setting an AFS ACL we have to take care of the ACEs we could
+ * not properly map to SIDs. Merge all of them into the new ACL. */
+
+static void merge_unknown_aces(struct afs_acl *src, struct afs_acl *dst)
+{
+ struct afs_ace *ace;
+
+ for (ace = src->acelist; ace != NULL; ace = ace->next)
+ {
+ struct afs_ace *copy;
+
+ if (ace->type != SID_NAME_UNKNOWN) {
+ DEBUG(10, ("Not merging known ACE for %s\n",
+ ace->name));
+ continue;
+ }
+
+ DEBUG(10, ("Merging unknown ACE for %s\n", ace->name));
+
+ copy = clone_afs_ace(dst->ctx, ace);
+
+ if (copy == NULL) {
+ DEBUG(0, ("Could not clone ACE for %s\n", ace->name));
+ continue;
+ }
+
+ copy->next = dst->acelist;
+ dst->acelist = copy;
+ dst->num_aces += 1;
+ }
+}
+
+static BOOL afs_set_nt_acl(files_struct *fsp, uint32 security_info_sent,
+ struct security_descriptor_info *psd)
+{
+ struct afs_acl old_afs_acl, new_afs_acl;
+ char acl_string[2049];
+ struct afs_iob iob;
+ int ret;
+
+ if (!fsp->is_directory) {
+ /* AFS only supports ACLs on directories... */
+ return False;
+ }
+
+ if (!afs_get_afs_acl(fsp->fsp_name, &old_afs_acl)) {
+ DEBUG(3, ("Could not get old ACL of %s\n", fsp->fsp_name));
+ return False;
+ }
+
+ if (!nt_to_afs_acl(security_info_sent, psd, &new_afs_acl)) {
+ free_afs_acl(&old_afs_acl);
+ return False;
+ }
+
+ merge_unknown_aces(&old_afs_acl, &new_afs_acl);
+
+ unparse_afs_acl(&new_afs_acl, acl_string);
+
+ free_afs_acl(&old_afs_acl);
+ free_afs_acl(&new_afs_acl);
+
+ iob.in = acl_string;
+ iob.in_size = 1+strlen(iob.in);
+ iob.out = NULL;
+ iob.out_size = 0;
+
+ DEBUG(10, ("trying to set acl '%s' on file %s\n",
+ iob.in, fsp->fsp_name));
+
+ ret = afs_syscall(AFSCALL_PIOCTL, fsp->fsp_name, VIOCSETAL,
+ (char *)&iob, 0);
+
+ if (ret != 0) {
+ DEBUG(10, ("VIOCSETAL returned %d\n", ret));
+ }
+
+ return (ret == 0);
+}
+
+static size_t afsacl_fget_nt_acl(struct vfs_handle_struct *handle,
+ struct files_struct *fsp,
+ int fd, uint32 security_info,
+ struct security_descriptor_info **ppdesc)
+{
+ return afs_get_nt_acl(fsp, security_info, ppdesc);
+}
+static size_t afsacl_get_nt_acl(struct vfs_handle_struct *handle,
+ struct files_struct *fsp,
+ const char *name, uint32 security_info,
+ struct security_descriptor_info **ppdesc)
+{
+ return afs_get_nt_acl(fsp, security_info, ppdesc);
+}
+
+BOOL afsacl_fset_nt_acl(vfs_handle_struct *handle,
+ files_struct *fsp,
+ int fd, uint32 security_info_sent,
+ SEC_DESC *psd)
+{
+ return afs_set_nt_acl(fsp, security_info_sent, psd);
+}
+
+BOOL afsacl_set_nt_acl(vfs_handle_struct *handle,
+ files_struct *fsp,
+ const char *name, uint32 security_info_sent,
+ SEC_DESC *psd)
+{
+ return afs_set_nt_acl(fsp, security_info_sent, psd);
+}
+
+/* VFS operations structure */
+
+static vfs_op_tuple afsacl_ops[] = {
+ {SMB_VFS_OP(afsacl_fget_nt_acl), SMB_VFS_OP_FGET_NT_ACL,
+ SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(afsacl_get_nt_acl), SMB_VFS_OP_GET_NT_ACL,
+ SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(afsacl_fset_nt_acl), SMB_VFS_OP_FSET_NT_ACL,
+ SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(afsacl_set_nt_acl), SMB_VFS_OP_SET_NT_ACL,
+ SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
+};
+
+NTSTATUS vfs_afsacl_init(void)
+{
+ return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "afsacl",
+ afsacl_ops);
+}
git.samba.org / ira / wip.git / commitdiff