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authorJeremy Kerr <jk@ozlabs.org>2018-07-03 16:34:43 +1000
committerSamuel Mendoza-Jonas <sam@mendozajonas.com>2018-07-10 13:00:53 +1000
commit6598baa0bd34db9a9c446500a940ec034375b523 (patch)
treeb33665d59c6925a94babada8db3da46cb147bef2 /lib
parent6fa0edfb029726968cbacad9d4e193a345956ff3 (diff)
downloadtalos-petitboot-6598baa0bd34db9a9c446500a940ec034375b523.zip
talos-petitboot-6598baa0bd34db9a9c446500a940ec034375b523.tar.gz
protocol: Add definition and serialisation for temporary autoboot
Add a new message format for a temporarily-applied autoboot setting. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Diffstat (limited to 'lib')
-rw-r--r--lib/pb-protocol/pb-protocol.c70
-rw-r--r--lib/pb-protocol/pb-protocol.h6
2 files changed, 76 insertions, 0 deletions
diff --git a/lib/pb-protocol/pb-protocol.c b/lib/pb-protocol/pb-protocol.c
index dbbda40..8e37348 100644
--- a/lib/pb-protocol/pb-protocol.c
+++ b/lib/pb-protocol/pb-protocol.c
@@ -363,6 +363,21 @@ int pb_protocol_plugin_option_len(const struct plugin_option *opt)
return len;
}
+int pb_protocol_temp_autoboot_len(const struct autoboot_option *opt)
+{
+ unsigned int len = 0;
+
+ /* boot_type */
+ len += 4;
+
+ if (opt->boot_type == BOOT_DEVICE_TYPE)
+ len += 4;
+ else
+ len += optional_strlen(opt->uuid);
+
+ return len;
+}
+
int pb_protocol_serialise_device(const struct device *dev,
char *buf, int buf_len)
{
@@ -663,6 +678,26 @@ int pb_protocol_serialise_plugin_option(const struct plugin_option *opt,
return 0;
}
+int pb_protocol_serialise_temp_autoboot(const struct autoboot_option *opt,
+ char *buf, int buf_len)
+{
+ char *pos = buf;
+
+ *(uint32_t *)pos = __cpu_to_be32(opt->boot_type);
+ pos += 4;
+
+ if (opt->boot_type == BOOT_DEVICE_TYPE) {
+ *(uint32_t *)pos = __cpu_to_be32(opt->type);
+ pos += 4;
+ } else {
+ pos += pb_protocol_serialise_string(pos, opt->uuid);
+ }
+
+ (void)buf_len;
+
+ return 0;
+}
+
int pb_protocol_write_message(int fd, struct pb_protocol_message *message)
{
int total_len, rc;
@@ -1265,3 +1300,38 @@ int pb_protocol_deserialise_plugin_option(struct plugin_option *opt,
out:
return rc;
}
+
+int pb_protocol_deserialise_temp_autoboot(struct autoboot_option *opt,
+ const struct pb_protocol_message *message)
+{
+ unsigned int len, tmp;
+ const char *pos;
+ int rc = -1;
+ char *str;
+
+ len = message->payload_len;
+ pos = message->payload;
+
+ if (read_u32(&pos, &len, &tmp))
+ goto out;
+
+ opt->boot_type = tmp;
+ if (opt->boot_type == BOOT_DEVICE_TYPE) {
+ if (read_u32(&pos, &len, &tmp))
+ goto out;
+ opt->type = tmp;
+
+ } else if (opt->boot_type == BOOT_DEVICE_UUID) {
+ if (read_string(opt, &pos, &len, &str))
+ goto out;
+ opt->uuid = str;
+
+ } else {
+ return -1;
+ }
+
+ rc = 0;
+
+out:
+ return rc;
+}
diff --git a/lib/pb-protocol/pb-protocol.h b/lib/pb-protocol/pb-protocol.h
index 250c2d1..14fd8a2 100644
--- a/lib/pb-protocol/pb-protocol.h
+++ b/lib/pb-protocol/pb-protocol.h
@@ -26,6 +26,7 @@ enum pb_protocol_action {
PB_PROTOCOL_ACTION_PLUGIN_OPTION_ADD = 0xc,
PB_PROTOCOL_ACTION_PLUGINS_REMOVE = 0xd,
PB_PROTOCOL_ACTION_PLUGIN_INSTALL = 0xe,
+ PB_PROTOCOL_ACTION_TEMP_AUTOBOOT = 0xf,
};
struct pb_protocol_message {
@@ -44,6 +45,7 @@ int pb_protocol_system_info_len(const struct system_info *sysinfo);
int pb_protocol_config_len(const struct config *config);
int pb_protocol_url_len(const char *url);
int pb_protocol_plugin_option_len(const struct plugin_option *opt);
+int pb_protocol_temp_autoboot_len(const struct autoboot_option *opt);
int pb_protocol_device_cmp(const struct device *a, const struct device *b);
int pb_protocol_boot_option_cmp(const struct boot_option *a,
@@ -68,6 +70,8 @@ int pb_protocol_serialise_config(const struct config *config,
int pb_protocol_serialise_url(const char *url, char *buf, int buf_len);
int pb_protocol_serialise_plugin_option(const struct plugin_option *opt,
char *buf, int buf_len);
+int pb_protocol_serialise_temp_autoboot(const struct autoboot_option *opt,
+ char *buf, int buf_len);
int pb_protocol_write_message(int fd, struct pb_protocol_message *message);
@@ -96,4 +100,6 @@ int pb_protocol_deserialise_config(struct config *config,
int pb_protocol_deserialise_plugin_option(struct plugin_option *opt,
const struct pb_protocol_message *message);
+int pb_protocol_deserialise_temp_autoboot(struct autoboot_option *opt,
+ const struct pb_protocol_message *message);
#endif /* _PB_PROTOCOL_H */
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