ca-cacert-root: Do not use the full-blown ca-certificates

First ca-certificates does not create a symlink from /etc/ssl/certs
to /usr/lib/ssl/certs, second it does not run the c_rehash perl utility
making the recipe pretty useless and third it trusts way too many
cert authorities.

recipes-apps/tasks/task-sysmocom.bb

@@ -4,7 +4,7 @@ LIC_FILES_CHKSUM = "file://${COREBASE}/LICENSE;md5=3f40d7994397109285ec7b81fdeb3
                     file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
 DEPENDS = "virtual/kernel"
 ALLOW_EMPTY = "1"
-PR = "r8"
+PR = "r9"
 
 RDEPENDS_task-sysmocom = "\
     task-sysmocom-tools \
@@ -15,6 +15,6 @@ RDEPENDS_task-sysmocom = "\
     osmo-nitb \
     ipaccess-utils \
     wget \
-    ca-certificates \
+    ca-cacert-rootcert \
     "
 

recipes-extra/ca-certificates/ca-cacert-rootcert.bb

@@ -0,0 +1,15 @@
+DESCRIPTION = "CACert Class3 PKI"
+HOMEPAGE = "http://www.cacert.org/index.php?id=3"
+SECTION = "misc"
+LICENSE = "RDL-COD14"
+LIC_FILES_CHKSUM = "file://${COREBASE}/LICENSE;md5=3f40d7994397109285ec7b81fdeb3b58"
+PR = "r2"
+
+SRC_URI = "file://class3.crt"
+
+do_install() {
+	install -d ${D}${libdir}/ssl/certs
+	install -m 0644 ${WORKDIR}/class3.crt ${D}${libdir}/ssl/certs/e5662767.0
+}
+
+FILES_${PN} = "${libdir}/ssl/certs/*"

recipes-extra/ca-certificates/files/class3.crt

@@ -0,0 +1,42 @@
+-----BEGIN CERTIFICATE-----
+MIIHWTCCBUGgAwIBAgIDCkGKMA0GCSqGSIb3DQEBCwUAMHkxEDAOBgNVBAoTB1Jv
+b3QgQ0ExHjAcBgNVBAsTFWh0dHA6Ly93d3cuY2FjZXJ0Lm9yZzEiMCAGA1UEAxMZ
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+AQEBBQADggIPADCCAgoCggIBAKtJNRFIfNImflOUz0Op3SjXQiqL84d4GVh8D57a
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+gaMGA1UdIwSBmzCBmIAUFrUyG9TH8+DmjvO90rA67rI5GNGhfaR7MHkxEDAOBgNV
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+MD8GCCsGAQQBgZBKMDMwMQYIKwYBBQUHAgEWJWh0dHA6Ly93d3cuQ0FjZXJ0Lm9y
+Zy9pbmRleC5waHA/aWQ9MTAwNAYJYIZIAYb4QgEIBCcWJWh0dHA6Ly93d3cuQ0Fj
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+4GGSt/M3mMS+lqO3ig==
+-----END CERTIFICATE-----