> >> As mentioned, the first patch description should include a shell > >> command for verifying the digest in the kexec boot command line > >> measurement list record against /proc/cmdline. This patch description > >> should include a shell command showing how to verify the digest based > >> on the new field. Should the new field in the ascii measurement list > >> be displayed as a string, not hex? > > > > We should define a new type. If the type is DATA_FMT_STRING, spaces are > > replaced with '_'. > > Or better. Leave it as hex, otherwise there would be a parsing problem > if there are spaces in the data for a field. After making a few changes, the measurement list contains the following kexec-cmdline data: 10 edc32d1e3a5ba7272280a395b6fb56a5ef7c78c3 ima-buf sha256:4f43b7db850e 88c49dfeffd4b1eb4f021d78033dfb05b07e45eec8d0b45275 kexec-cmdline 726f6f 743d2f6465762f7364613420726f2072642e6c756b732e757569643d6c756b73 2d6637 3633643737632d653236622d343431642d613734652d62363633636334643832 656120 696d615f706f6c6963793d7463627c61707072616973655f746362 There's probably a better shell command, but the following works to verify the digest locally against the /proc/cmdline: $ echo -n -e `cat /proc/cmdline | sed 's/^.*root=/root=/'` | sha256sum 4f43b7db850e88c49dfeffd4b1eb4f021d78033dfb05b07e45eec8d0b4527f65 - If we leave the "buf" field as ascii-hex, what would the shell command look like when verifying the digest based on the "buf" field? Mimi
