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evmctl: Implement support for EVMCTL_KEY_PASSWORD environment variable

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If the user did not use the --pass option to provide a key password,
get the key password from the EVMCTL_KEY_PASSWORD environment variable.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
This commit is contained in:
Stefan Berger 2021-09-13 18:18:05 -04:00 committed by Mimi Zohar
parent fa2ba9a6e9
commit 6fbb2a305b
2 changed files with 10 additions and 0 deletions
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4
README
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@ -70,6 +70,10 @@ OPTIONS
-v increase verbosity level -v increase verbosity level
-h, --help display this help and exit -h, --help display this help and exit
Environment variables:
EVMCTL_KEY_PASSWORD : Private key password to use; do not use --pass option
INTRODUCTION INTRODUCTION
------------ ------------

6
src/evmctl.c
View File

@ -2534,6 +2534,9 @@ static void usage(void)
" --ignore-violations ignore ToMToU measurement violations\n" " --ignore-violations ignore ToMToU measurement violations\n"
" -v increase verbosity level\n" " -v increase verbosity level\n"
" -h, --help display this help and exit\n" " -h, --help display this help and exit\n"
"\n"
"Environment variables:\n\n"
"EVMCTL_KEY_PASSWORD : Private key password to use; do not use --pass option\n"
"\n"); "\n");
} }
@ -2822,6 +2825,9 @@ int main(int argc, char *argv[])
} }
} }
if (!imaevm_params.keypass)
imaevm_params.keypass = getenv("EVMCTL_KEY_PASSWORD");
if (argv[optind] == NULL) if (argv[optind] == NULL)
usage(); usage();
else else