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authorSamuel Mendoza-Jonas <sam@mendozajonas.com>2018-06-19 16:35:22 +1000
committerSamuel Mendoza-Jonas <sam@mendozajonas.com>2018-12-03 14:39:57 +1100
commitde6f6c4bff7d42f63e2bbd01d2bab65ae9635877 (patch)
tree1c78078b3f691025b2b1e07a728ed1bb398cac0a
parent5d7f93f2ee09de515e1e474fd752d52590b51793 (diff)
downloadtalos-petitboot-de6f6c4bff7d42f63e2bbd01d2bab65ae9635877.zip
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lib/pb-protocol: Add PB_PROTOCOL_ACTION_AUTHENTICATE
Add a new "authenticate" action. Depending on the 'op' field this is either a) an authentication request, b) a response indicating the result, or c) a request to change the password. Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
-rw-r--r--lib/pb-protocol/pb-protocol.c88
-rw-r--r--lib/pb-protocol/pb-protocol.h26
2 files changed, 114 insertions, 0 deletions
diff --git a/lib/pb-protocol/pb-protocol.c b/lib/pb-protocol/pb-protocol.c
index 7c563c8..5de382d 100644
--- a/lib/pb-protocol/pb-protocol.c
+++ b/lib/pb-protocol/pb-protocol.c
@@ -379,6 +379,25 @@ int pb_protocol_temp_autoboot_len(const struct autoboot_option *opt)
return len;
}
+int pb_protocol_authenticate_len(struct auth_message *msg)
+{
+ switch (msg->op) {
+ case AUTH_MSG_REQUEST:
+ /* enum + password + length */
+ return 4 + 4 + optional_strlen(msg->password);
+ case AUTH_MSG_RESPONSE:
+ /* enum + bool */
+ return 4 + 4;
+ case AUTH_MSG_SET:
+ /* enum + password + password */
+ return 4 + 4 + optional_strlen(msg->set_password.password) +
+ 4 + optional_strlen(msg->set_password.new_password);
+ default:
+ pb_log("%s: invalid input\n", __func__);
+ return 0;
+ }
+}
+
int pb_protocol_serialise_device(const struct device *dev,
char *buf, int buf_len)
{
@@ -703,6 +722,39 @@ int pb_protocol_serialise_temp_autoboot(const struct autoboot_option *opt,
return 0;
}
+int pb_protocol_serialise_authenticate(struct auth_message *msg,
+ char *buf, int buf_len)
+{
+ char *pos = buf;
+
+ *(enum auth_msg_type *)pos = msg->op;
+ pos += sizeof(enum auth_msg_type);
+
+ switch(msg->op) {
+ case AUTH_MSG_REQUEST:
+ pos += pb_protocol_serialise_string(pos, msg->password);
+ break;
+ case AUTH_MSG_RESPONSE:
+ *(bool *)pos = msg->authenticated;
+ pos += sizeof(bool);
+ break;
+ case AUTH_MSG_SET:
+ pos += pb_protocol_serialise_string(pos,
+ msg->set_password.password);
+ pos += pb_protocol_serialise_string(pos,
+ msg->set_password.new_password);
+ break;
+ default:
+ pb_log("%s: invalid msg\n", __func__);
+ return -1;
+ };
+
+ assert(pos <= buf + buf_len);
+ (void)buf_len;
+
+ return 0;
+}
+
int pb_protocol_write_message(int fd, struct pb_protocol_message *message)
{
int total_len, rc;
@@ -1346,3 +1398,39 @@ int pb_protocol_deserialise_temp_autoboot(struct autoboot_option *opt,
out:
return rc;
}
+
+int pb_protocol_deserialise_authenticate(struct auth_message *msg,
+ const struct pb_protocol_message *message)
+{
+ unsigned int len;
+ const char *pos;
+
+ len = message->payload_len;
+ pos = message->payload;
+
+ msg->op = *(enum auth_msg_type *)pos;
+ pos += sizeof(enum auth_msg_type);
+
+ switch (msg->op) {
+ case AUTH_MSG_REQUEST:
+ if (read_string(msg, &pos, &len, &msg->password))
+ return -1;
+ break;
+ case AUTH_MSG_RESPONSE:
+ msg->authenticated = *(bool *)pos;
+ pos += sizeof(bool);
+ break;
+ case AUTH_MSG_SET:
+ if (read_string(msg, &pos, &len, &msg->set_password.password))
+ return -1;
+ if (read_string(msg, &pos, &len,
+ &msg->set_password.new_password))
+ return -1;
+ break;
+ default:
+ pb_log("%s: unable to parse\n", __func__);
+ return -1;
+ }
+
+ return 0;
+}
diff --git a/lib/pb-protocol/pb-protocol.h b/lib/pb-protocol/pb-protocol.h
index 14fd8a2..1d6c048 100644
--- a/lib/pb-protocol/pb-protocol.h
+++ b/lib/pb-protocol/pb-protocol.h
@@ -27,6 +27,7 @@ enum pb_protocol_action {
PB_PROTOCOL_ACTION_PLUGINS_REMOVE = 0xd,
PB_PROTOCOL_ACTION_PLUGIN_INSTALL = 0xe,
PB_PROTOCOL_ACTION_TEMP_AUTOBOOT = 0xf,
+ PB_PROTOCOL_ACTION_AUTHENTICATE = 0x10,
};
struct pb_protocol_message {
@@ -35,6 +36,24 @@ struct pb_protocol_message {
char payload[];
};
+enum auth_msg_type {
+ AUTH_MSG_REQUEST,
+ AUTH_MSG_RESPONSE,
+ AUTH_MSG_SET,
+};
+
+struct auth_message {
+ enum auth_msg_type op;
+ union {
+ bool authenticated;
+ char *password;
+ struct {
+ char *password;
+ char *new_password;
+ } set_password;
+ };
+};
+
void pb_protocol_dump_device(const struct device *dev, const char *text,
FILE *stream);
int pb_protocol_device_len(const struct device *dev);
@@ -46,6 +65,7 @@ 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_authenticate_len(struct auth_message *msg);
int pb_protocol_device_cmp(const struct device *a, const struct device *b);
int pb_protocol_boot_option_cmp(const struct boot_option *a,
@@ -72,6 +92,8 @@ 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_serialise_authenticate(struct auth_message *msg,
+ char *buf, int buf_len);
int pb_protocol_write_message(int fd, struct pb_protocol_message *message);
@@ -100,6 +122,10 @@ 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);
+
+int pb_protocol_deserialise_authenticate(struct auth_message *msg,
+ const struct pb_protocol_message *message);
#endif /* _PB_PROTOCOL_H */
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