opkg: switch to own fork to improve memory usage

Switch to our own fork of opkg to significantly reduce the required amount
of memory when updating lists or installing packages.

Preliminary tests showed a usage drop of about 90% during these operations,
from ~3.7MB with unmodified opkg to ~360KB with our custom fork.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 0 insertions, 91 deletions

diff --git a/package/system/opkg/patches/200-usign_support.patch b/package/system/opkg/patches/200-usign_support.patch
deleted file mode 100644
index 6479d57..0000000
--- a/package/system/opkg/patches/200-usign_support.patch
+++ /dev/null
@@ -1,91 +0,0 @@
---- a/configure.ac
-+++ b/configure.ac
-@@ -169,6 +169,15 @@ if test "x$want_gpgme" = "xyes"; then
-   fi
- fi
- 
-+AC_ARG_ENABLE(usign,
-+    AC_HELP_STRING([--enable-usign], [Enable signature checking with usign
-+      [[default=yes]] ]),
-+    [want_usign="$enableval"], [want_usign="yes"])
-+
-+if test "x$want_usign" = "xyes"; then
-+  AC_DEFINE(HAVE_USIGN, 1, [Define if you want usign support])
-+fi
-+
- AC_SUBST(GPGME_CFLAGS)
- AC_SUBST(GPGME_LIBS)
- 
---- a/libopkg/opkg.c
-+++ b/libopkg/opkg.c
-@@ -599,7 +599,7 @@ opkg_update_package_lists(opkg_progress_
- 		}
- 		free(url);
- 
--#if defined(HAVE_GPGME) || defined(HAVE_OPENSSL)
-+#if defined(HAVE_GPGME) || defined(HAVE_OPENSSL) || defined(HAVE_USIGN)
- 		if (conf->check_signature) {
- 			char *sig_file_name;
- 			/* download detached signitures to verify the package lists */
---- a/libopkg/opkg_cmd.c
-+++ b/libopkg/opkg_cmd.c
-@@ -169,7 +169,7 @@ opkg_update_cmd(int argc, char **argv)
- 			    list_file_name);
- 	  }
- 	  free(url);
--#if defined(HAVE_GPGME) || defined(HAVE_OPENSSL)
-+#if defined(HAVE_GPGME) || defined(HAVE_OPENSSL) || defined(HAVE_USIGN)
-           if (conf->check_signature) {
-               /* download detached signitures to verify the package lists */
-               /* get the url for the sig file */
---- a/libopkg/opkg_install.c
-+++ b/libopkg/opkg_install.c
-@@ -1288,7 +1288,7 @@ opkg_install_pkg(pkg_t *pkg, int from_up
-      }
- 
-      /* check that the repository is valid */
--     #if defined(HAVE_GPGME) || defined(HAVE_OPENSSL)
-+     #if defined(HAVE_GPGME) || defined(HAVE_OPENSSL) || defined(HAVE_USIGN)
-      char *list_file_name, *sig_file_name, *lists_dir;
- 
-      /* check to ensure the package has come from a repository */
---- a/libopkg/opkg_download.c
-+++ b/libopkg/opkg_download.c
-@@ -19,6 +19,7 @@
- 
- #include "config.h"
- 
-+#include <sys/wait.h>
- #include <stdio.h>
- #include <unistd.h>
- #include <libgen.h>
-@@ -342,7 +343,28 @@ opkg_prepare_url_for_install(const char
- int
- opkg_verify_file (char *text_file, char *sig_file)
- {
--#if defined HAVE_GPGME
-+#if defined HAVE_USIGN
-+	int status = -1;
-+	int pid;
-+
-+    if (conf->check_signature == 0 )
-+        return 0;
-+
-+	pid = fork();
-+	if (pid < 0)
-+		return -1;
-+
-+	if (!pid) {
-+		execl("/usr/sbin/opkg-key", "opkg-key", "verify", sig_file, text_file, NULL);
-+		exit(255);
-+	}
-+
-+	waitpid(pid, &status, 0);
-+	if (!WIFEXITED(status) || WEXITSTATUS(status))
-+		return -1;
-+
-+	return 0;
-+#elif defined HAVE_GPGME
-     if (conf->check_signature == 0 )
-         return 0;
-     int status = -1;