Switch http:// (and redundant ftp://) PKG_SOURCE_URL entries to https://
across tools/ and package/. PKG_HASH alone does not protect against an
attacker tampering with insecure downloads when a maintainer regenerates
the hash via `make ... FIXUP=1`: HTTPS authenticates the upstream so the
captured hash reflects real upstream content.
In-place http -> https (HTTPS reachability verified per host):
- tools/elftosb, tools/lzop, tools/liblzo, tools/mpfr, tools/dosfstools,
tools/libressl, tools/xz
- package/libs/mpfr, package/libs/libmnl, package/libs/libnfnetlink
Replaced with @OPENWRT (HTTPS-only mirror) where the upstream HTTPS host
is dead or has a broken certificate:
- package/libs/popt (ftp.rpm.org cert mismatch)
- package/firmware/ixp4xx-microcode (was http://downloads.openwrt.org)
- package/boot/imx-bootlets (trabant.uid0.hu cert mismatch)
- package/boot/kobs-ng (freescale.com URL is dead, redirects to nxp.com root)
Dropped redundant ftp://ftp.denx.de fallback (https://ftp.denx.de is
already listed):
- package/boot/uboot-tools, tools/mkimage
Signed-off-by: Paul Spooren <mail@aparcar.org>
