auth: Kerberos authentication

Signed-off-by: Daniel Oliveira <[email protected]> (github: oliveiradan)

CMakeLists.txt

@@ -232,6 +232,12 @@ if(WITH_OPENLDAP)
   set(HAVE_OPENLDAP ${OPENLDAP_FOUND})
 endif()
 
+option(WITH_GSSAPI "GSSAPI/KRB5 is here" ON)
+if(WITH_GSSAPI)
+  find_package(GSSApi REQUIRED)
+  set(HAVE_GSSAPI ${GSSApi_FOUND})
+endif()
+
 option(WITH_FUSE "Fuse is here" ON)
 if(WITH_FUSE)
   find_package(fuse)

alpine/APKBUILD.in

@@ -47,6 +47,7 @@ makedepends="
 	lvm2-dev
 	nss-dev
 	openldap-dev
+	krb5-dev
 	parted
 	procps
 	python-dev

ceph.spec.in

@@ -221,6 +221,8 @@ BuildRequires:	keyutils-devel
 BuildRequires:  libopenssl-devel
 BuildRequires:  lsb-release
 BuildRequires:  openldap2-devel
+BuildRequires:  krb5
+BuildRequires:  krb5-devel
 BuildRequires:  cunit-devel
 BuildRequires:	python%{_python_buildid}-base
 BuildRequires:	python%{_python_buildid}-Cython
@@ -238,6 +240,7 @@ BuildRequires:	keyutils-libs-devel
 BuildRequires:	libibverbs-devel
 BuildRequires:  librdmacm-devel
 BuildRequires:  openldap-devel
+BuildRequires:  krb5-devel
 BuildRequires:  openssl-devel
 BuildRequires:  CUnit-devel
 BuildRequires:  redhat-lsb-core

cmake/modules/FindGSSApi.cmake

@@ -0,0 +1,22 @@
+# - Find KRB5/GSSAPI C Libraries
+#
+# GSSAPI_FOUND - True if found.
+# GSSAPI_INCLUDE_DIR - Path to the KRB5/gssapi include directory
+# GSSAPI_LIBRARIES - Paths to the KRB5/gssapi libraries
+
+find_path(GSSAPI_INCLUDE_DIR gssapi.h PATHS
+  /usr/include
+  /opt/local/include
+  /usr/local/include)
+
+find_library(GSSAPI_KRB5_LIBRARY gssapi_krb5)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(GSSApi DEFAULT_MSG
+	GSSAPI_INCLUDE_DIR GSSAPI_KRB5_LIBRARY)
+
+set(GSSAPI_LIBRARIES ${GSSAPI_KRB5_LIBRARY})
+
+mark_as_advanced(
+	GSSAPI_INCLUDE_DIR GSSAPI_KRB5_LIBRARY)
+

debian/control

@@ -37,6 +37,7 @@ Build-Depends: bc,
                librdmacm-dev,
                libkeyutils-dev,
                libldap2-dev,
+               libkrb5-dev,
                libleveldb-dev,
                liblttng-ust-dev,
                liblz4-dev (>= 0.0~r131),