Enabling the avahi service.

Regsitering the following services with avahi.
obmc-console,ssh,sftp(dropbear),obmc-rest

Fixes openbmc/openbmc#548
Fixes openbmc/openbmc#549

Change-Id: I20c31e9e8dfa6d52575bc3c1f55ac62eef82ec13
Signed-off-by: Ratan Gupta <ratagupt@in.ibm.com>

1 files changed, 76 insertions, 0 deletions

diff --git a/meta-phosphor/classes/obmc-phosphor-discovery-service.bbclass b/meta-phosphor/classes/obmc-phosphor-discovery-service.bbclass
new file mode 100644
index 000000000..4c9db0f70
--- /dev/null
+++ b/meta-phosphor/classes/obmc-phosphor-discovery-service.bbclass
@@ -0,0 +1,76 @@
+inherit obmc-phosphor-utils
+DISCOVERY_SVC_PACKAGES ?= "${PN}"
+
+python() {
+    avahi_enabled = bb.utils.contains(
+            'DISTRO_FEATURES', 'avahi', 'true', 'false', d)
+    slp_enabled = False # later
+
+    if not avahi_enabled and slp_enabled:
+        return
+
+    syscnfdir = d.getVar('sysconfdir', True)
+    dest_dir = d.getVar('D', True)
+    set_append(d, 'AVAHI_SERVICES_DIR', os.path.join(
+        dest_dir+syscnfdir,
+        'avahi',
+        'services'))
+
+    for pkg in listvar_to_list(d, 'DISCOVERY_SVC_PACKAGES'):
+        for service in listvar_to_list(d, 'REGISTERED_SERVICES_%s' % pkg):
+            if avahi_enabled:
+                set_append(d, 'RRECOMMENDS_%s' % pkg, 'avahi-daemon')
+                svc_name, svc_type, svc_port = service.split(':')
+                set_append(d, 'FILES_%s' % pkg, os.path.join(
+                    syscnfdir,
+                    'avahi',
+                    'services',
+                    '%s.service' % svc_name))
+}
+
+python discovery_services_postinstall() {
+    avahi_enabled = bb.utils.contains(
+            'DISTRO_FEATURES', 'avahi', 'true', 'false', d)
+    slp_enabled = False # later
+
+    if not avahi_enabled and slp_enabled:
+        return
+
+    service_dir = d.getVar('AVAHI_SERVICES_DIR', True)
+
+    if not os.path.exists(service_dir):
+        os.makedirs(service_dir)
+
+    def register_service_avahi(d, service_name, service_type, service_port):
+        service_file = os.path.join(
+            service_dir,
+            '%s.service' % service_name)
+        with open(service_file, 'w') as fd:
+            fd.write('<?xml version="1.0" ?>\n')
+            fd.write('<!DOCTYPE service-group SYSTEM "avahi-service.dtd">\n')
+            fd.write('<service-group>\n')
+            fd.write('        <name>"%s"</name>\n' % service_name)
+            fd.write('        <service>\n')
+            fd.write('                <type>"%s"</type>\n' % service_type)
+            fd.write('                <port>"%s"</port>\n' % service_port)
+            fd.write('        </service>\n')
+            fd.write('</service-group>\n')
+
+    def register_services(d,pkg):
+        for service in listvar_to_list(d, 'REGISTERED_SERVICES_%s' % pkg):
+            svc_info = service.split(":")
+            try:
+                svc_name, svc_type, svc_port = svc_info
+                svc_type = "_" + svc_name + "._" + svc_type
+            except:
+                continue
+            if avahi_enabled:
+                register_service_avahi(d, svc_name, svc_type, svc_port)
+
+    for pkg in listvar_to_list(d, 'DISCOVERY_SVC_PACKAGES'):
+        register_services(d, pkg)
+
+}
+do_install[postfuncs] += "discovery_services_postinstall"
+
+