> @@ -195,7 +181,34 @@ void ima_add_kexec_buffer(struct kimage *image)
> static int ima_update_kexec_buffer(struct notifier_block *self,
> unsigned long action, void *data)
> {
> - return NOTIFY_OK;
> + void *buf = NULL;
> + size_t buf_size;
> + int ret = NOTIFY_OK;
> +
> + if (!kexec_in_progress) {
> + pr_info("%s: No kexec in progress.\n", __func__);
> + return ret;
> + }
> +
> + if (!ima_kexec_buffer) {
> + pr_err("%s: Kexec buffer not set.\n", __func__);
> + return ret;
> + }
pr_ messages should already be prefixed with the module name. There shouldn't
be a need to include the function name as well.
> + ret = ima_dump_measurement_list(&buf_size, &buf,
> + kexec_segment_size);
> +
> + if (!buf) {
> + pr_err("%s: Dump measurements failed. Error:%d\n",
> + __func__, ret);
> + goto out;
> + }
> + memcpy(ima_kexec_buffer, buf, buf_size);
> +out:
> + kimage_unmap_segment(ima_kexec_buffer);
> + ima_kexec_buffer = NULL;
> +
> + return ret;
> }
>
> struct notifier_block update_buffer_nb = {
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