This is a follow-up to, and supersedes [0], which moved some WEP code from the cipher to the skcipher interface, in order to reduce the use of the bare cipher interface in non-crypto subsystem code. Since using the skcipher interface to invoke the generic C implementation of an algorithm that is known at compile time is rather pointless, this series moves those users to a new arc4 library interface instead, which is based on the existing code. Along the way, the arc4 cipher implementation is removed entirely, and only the ecb(arc4) code is preserved, which is used in a number of places in the kernel, and is known to be used by at least 'iwd' from user space via the algif_skcipher API. [0] https://lore.kernel.org/linux-crypto/20190607144944.13485-1-ard.biesheuvel@xxxxxxxxxx/ Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> Cc: Eric Biggers <ebiggers@xxxxxxxxxx> Ard Biesheuvel (7): crypto: arc4 - refactor arc4 core code into separate library net/mac80211: move WEP handling to ARC4 library interface net/lib80211: move WEP handling to ARC4 library code net/lib80211: move TKIP handling to ARC4 library code crypto: arc4 - remove cipher implementation ppp: mppe: switch to RC4 library interface fs: cifs: switch to RC4 library interface MAINTAINERS | 1 + crypto/Kconfig | 4 + crypto/arc4.c | 106 ++------------------ drivers/net/ppp/Kconfig | 3 +- drivers/net/ppp/ppp_mppe.c | 92 ++--------------- fs/cifs/Kconfig | 2 +- fs/cifs/cifsencrypt.c | 50 +++------ include/crypto/arc4.h | 13 +++ lib/Makefile | 2 +- lib/crypto/Makefile | 3 + lib/crypto/libarc4.c | 74 ++++++++++++++ net/mac80211/Kconfig | 2 +- net/mac80211/cfg.c | 3 - net/mac80211/ieee80211_i.h | 4 +- net/mac80211/key.h | 1 + net/mac80211/main.c | 48 +-------- net/mac80211/mlme.c | 2 - net/mac80211/tkip.c | 8 +- net/mac80211/tkip.h | 4 +- net/mac80211/wep.c | 47 ++------- net/mac80211/wep.h | 4 +- net/mac80211/wpa.c | 4 +- net/wireless/Kconfig | 1 + net/wireless/lib80211_crypt_tkip.c | 42 +++----- net/wireless/lib80211_crypt_wep.c | 43 ++------ 25 files changed, 176 insertions(+), 387 deletions(-) create mode 100644 lib/crypto/Makefile create mode 100644 lib/crypto/libarc4.c -- 2.20.1
