add support 4g -- >ppp

hc

2023-11-24 2b26ab132d1b33b91c84c6d732456200e8c5ee77

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# https://www.kernel.org/pub/linux/libs/security/linux-privs/libcap2/sha256sums.asc
sha256    693c8ac51e983ee678205571ef272439d83afe62dd8e424ea14ad9790bc35162  libcap-2.25.tar.xz