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According to 802.15.4-2003/2006/2015 specifications the MAC frame is composed of MHR, MAC payload and MFR and just the outgoing MAC payload must be encrypted. If communication is secure,sender build Auxiliary Security Header(ASH), insert it next to the standard MHR header with security enabled bit ON, and secure frames before transmitting them. According to the information carried within the ASH, recipient retrieves the right cryptographic key and correctly un-secure MAC frames. The error scenario occurs on Linux using IEEE802154_SCF_SECLEVEL_ENC(4) security level when llsec_do_encrypt_unauth() function builds theses MAC frames incorrectly. On recipients these MAC frames are discarded,logging "got invalid frame" messages. Signed-off-by: Diogenes Pereira <dvnp@cesar.org.br> Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com> |
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| .. | ||
| cfg.c | ||
| cfg.h | ||
| driver-ops.h | ||
| ieee802154_i.h | ||
| iface.c | ||
| Kconfig | ||
| llsec.c | ||
| llsec.h | ||
| mac_cmd.c | ||
| main.c | ||
| Makefile | ||
| mib.c | ||
| rx.c | ||
| trace.c | ||
| trace.h | ||
| tx.c | ||
| util.c | ||