diff --git a/winsup/cygwin/uinfo.cc b/winsup/cygwin/uinfo.cc index d493d29b3..5e2d88bcd 100644 --- a/winsup/cygwin/uinfo.cc +++ b/winsup/cygwin/uinfo.cc @@ -1485,9 +1485,9 @@ get_logon_sid () } } -/* Fetch special AzureAD group, which is part of the token group list but - *not* recognized by LookupAccountSid (ERROR_NONE_MAPPED). */ -static cygsid azure_grp_sid (""); +/* Fetch special AzureAD and IIS APPPOOL groups, which are part of the token + group list but *not* recognized by LookupAccountSid (ERROR_NONE_MAPPED). */ +static cygsid azure_grp_sid (""), iis_apppool_grp_sid (""); static void get_azure_grp_sid () @@ -1515,6 +1515,36 @@ get_azure_grp_sid () } } +static void +get_iis_apppool_grp_sid () +{ + if (PSID (iis_apppool_grp_sid) == NO_SID) + { + NTSTATUS status; + ULONG size; + tmp_pathbuf tp; + PTOKEN_GROUPS groups = (PTOKEN_GROUPS) tp.w_get (); + + status = NtQueryInformationToken (hProcToken, TokenGroups, groups, + 2 * NT_MAX_PATH, &size); + if (!NT_SUCCESS (status)) + debug_printf ("NtQueryInformationToken (TokenGroups) %y", status); + else + { + for (DWORD pg = 0; pg < groups->GroupCount; ++pg) + { + PSID sid = groups->Groups[pg].Sid; + if (sid_id_auth (sid) == 5 && + sid_sub_auth (sid, 0) == SECURITY_APPPOOL_ID_BASE_RID) + { + iis_apppool_grp_sid = sid; + break; + } + } + } + } +} + void * pwdgrp::add_account_post_fetch (char *line, bool lock) { @@ -1796,6 +1826,16 @@ pwdgrp::construct_sid_from_name (cygsid &sid, wchar_t *name, wchar_t *sep) } return false; } + if (sep && wcscmp (name, L"IIS APPPOOL\\Group") == 0) + { + get_iis_apppool_grp_sid (); + if (PSID (logon_sid) != NO_SID) + { + sid = iis_apppool_grp_sid; + return true; + } + return false; + } if (!sep && wcscmp (name, L"CurrentSession") == 0) { get_logon_sid (); @@ -2018,8 +2058,11 @@ pwdgrp::fetch_account_from_windows (fetch_user_arg_t &arg, cyg_ldap *pldap) /* Last but not least, some validity checks on the name style. */ if (!fq_name) { - /* AzureAD user must be prepended by "domain" name. */ - if (sid_id_auth (sid) == 12) + /* AzureAD and IIS APPPOOL users must be prepended by "domain" + name. */ + if (sid_id_auth (sid) == 12 || + (sid_id_auth (sid) == 5 && + sid_sub_auth (sid, 0) == SECURITY_APPPOOL_ID_BASE_RID)) return NULL; /* name_only account is either builtin or primary domain, or account domain on non-domain machines. */ @@ -2045,8 +2088,10 @@ pwdgrp::fetch_account_from_windows (fetch_user_arg_t &arg, cyg_ldap *pldap) } else { - /* AzureAD accounts should be fully qualifed either. */ - if (sid_id_auth (sid) == 12) + /* AzureAD and IIS APPPOOL accounts should be fully qualifed either. */ + if (sid_id_auth (sid) == 12 || + (sid_id_auth (sid) == 5 && + sid_sub_auth (sid, 0) == SECURITY_APPPOOL_ID_BASE_RID)) break; /* Otherwise, no fully_qualified for builtin accounts, except for NT SERVICE, for which we require the prefix. Note that there's @@ -2125,6 +2170,19 @@ pwdgrp::fetch_account_from_windows (fetch_user_arg_t &arg, cyg_ldap *pldap) sid = csid = azure_grp_sid; break; } + else if (arg.id == 0x1002) + { + /* IIS APPPOOL S-1-5-82-* user */ + csid = cygheap->user.saved_sid (); + } + else if (arg.id == 0x1003) + { + /* Special IIS APPPOOL group SID */ + get_iis_apppool_grp_sid (); + /* LookupAccountSidW will fail. */ + sid = csid = iis_apppool_grp_sid; + break; + } else if (arg.id == 0xfffe) { /* Special case "nobody" for reproducible construction of a @@ -2253,7 +2311,9 @@ pwdgrp::fetch_account_from_windows (fetch_user_arg_t &arg, cyg_ldap *pldap) Those we let pass, but no others. */ bool its_ok = false; - if (sid_id_auth (sid) == 12) + if (sid_id_auth (sid) == 12 || + (sid_id_auth (sid) == 5 && + sid_sub_auth (sid, 0) == SECURITY_APPPOOL_ID_BASE_RID)) its_ok = true; else /* Microsoft Account */ { @@ -2342,7 +2402,7 @@ pwdgrp::fetch_account_from_windows (fetch_user_arg_t &arg, cyg_ldap *pldap) posix_offset = fetch_posix_offset (td, &loc_ldap); } } - /* AzureAD S-1-12-1-W-X-Y-Z user */ + /* AzureAD S-1-12-1-W-X-Y-Z and IIS APPOOL S-1-5-82-* user */ else if (sid_id_auth (sid) == 12) { uid = gid = 0x1000; @@ -2355,6 +2415,21 @@ pwdgrp::fetch_account_from_windows (fetch_user_arg_t &arg, cyg_ldap *pldap) name, fully_qualified_name); break; } + /* IIS APPOOL S-1-5-82-* user */ + else if (sid_id_auth (sid) == 5 && + sid_sub_auth (sid, 0) == SECURITY_APPPOOL_ID_BASE_RID) + { + uid = 0x1002; + gid = 0x1003; + fully_qualified_name = true; + home = cygheap->pg.get_home ((PUSER_INFO_3) NULL, sid, dom, name, + fully_qualified_name); + shell = cygheap->pg.get_shell ((PUSER_INFO_3) NULL, sid, dom, + name, fully_qualified_name); + gecos = cygheap->pg.get_gecos ((PUSER_INFO_3) NULL, sid, dom, + name, fully_qualified_name); + break; + } /* If the domain returned by LookupAccountSid is not our machine name, and if our machine is no domain member, we lose. We have nobody to ask for the POSIX offset. */ @@ -2614,6 +2689,20 @@ pwdgrp::fetch_account_from_windows (fetch_user_arg_t &arg, cyg_ldap *pldap) fully_qualified_name = true; acc_type = SidTypeUnknown; } + else if (sid_id_auth (sid) == 5 && + sid_sub_auth (sid, 0) == SECURITY_APPPOOL_ID_BASE_RID) + { + /* Special IIS APPPOOL group SID which can't be resolved by + LookupAccountSid (ERROR_NONE_MAPPED). This is only allowed + as group entry, not as passwd entry. */ + if (is_passwd ()) + return NULL; + uid = gid = 0x1003; + wcpcpy (dom, L"IIS APPPOOL"); + wcpcpy (name = namebuf, L"Group"); + fully_qualified_name = true; + acc_type = SidTypeUnknown; + } else if (sid_id_auth (sid) == 5 /* SECURITY_NT_AUTHORITY */ && sid_sub_auth (sid, 0) == SECURITY_LOGON_IDS_RID) {