user/mosquitto: Fix (most) endian issues

This integrates a patch I am working with upstream on perfecting.

Two tests now fail on ppc64, but the rest pass, and persistence works
cross-endian now.

Upstream-URL: https://github.com/eclipse/mosquitto/issues/2550
See-Also: #687

1 files changed, 169 insertions, 0 deletions

diff --git a/user/mosquitto/endian.patch b/user/mosquitto/endian.patch
new file mode 100644
index 000000000..2efd1111d
--- /dev/null
+++ b/user/mosquitto/endian.patch
@@ -0,0 +1,169 @@
+From 165005742c1c6a5b0b6d037c9e83cbe4a18a3092 Mon Sep 17 00:00:00 2001
+From: "A. Wilcox" <AWilcox@Wilcox-Tech.com>
+Date: Sun, 29 May 2022 03:37:26 -0500
+Subject: [PATCH] persist: Fix ID storage on big-endian systems
+
+Signed-off-by: A. Wilcox <AWilcox@Wilcox-Tech.com>
+---
+ src/persist_read.c      | 3 ++-
+ src/persist_read_v234.c | 5 ++++-
+ src/persist_read_v5.c   | 4 ++++
+ src/persist_write.c     | 4 ++--
+ src/persist_write_v5.c  | 4 ++++
+ 5 files changed, 16 insertions(+), 4 deletions(-)
+
+diff --git a/src/persist_read.c b/src/persist_read.c
+index 5e7be454..e2b4ecb3 100644
+--- a/src/persist_read.c
++++ b/src/persist_read.c
+@@ -24,6 +24,7 @@ Contributors:
+ #include <arpa/inet.h>
+ #endif
+ #include <assert.h>
++#include <endian.h>
+ #include <errno.h>
+ #include <fcntl.h>
+ #include <stdio.h>
+@@ -480,7 +481,7 @@ int persist__restore(void)
+ 						fclose(fptr);
+ 						return 1;
+ 					}
+-					db.last_db_id = cfg_chunk.last_db_id;
++					db.last_db_id = le64toh(cfg_chunk.last_db_id);
+ 					break;
+ 
+ 				case DB_CHUNK_MSG_STORE:
+diff --git a/src/persist_read_v234.c b/src/persist_read_v234.c
+index 7460c309..701d88d9 100644
+--- a/src/persist_read_v234.c
++++ b/src/persist_read_v234.c
+@@ -24,6 +24,7 @@ Contributors:
+ #include <arpa/inet.h>
+ #endif
+ #include <assert.h>
++#include <endian.h>
+ #include <errno.h>
+ #include <fcntl.h>
+ #include <stdio.h>
+@@ -108,6 +109,7 @@ int persist__chunk_client_msg_read_v234(FILE *db_fptr, struct P_client_msg *chun
+ 	}
+ 
+ 	read_e(db_fptr, &chunk->F.store_id, sizeof(dbid_t));
++	chunk->F.store_id = le64toh(chunk->F.store_id);
+ 
+ 	read_e(db_fptr, &i16temp, sizeof(uint16_t));
+ 	chunk->F.mid = ntohs(i16temp);
+@@ -137,6 +139,7 @@ int persist__chunk_msg_store_read_v234(FILE *db_fptr, struct P_msg_store *chunk,
+ 	char *err;
+ 
+ 	read_e(db_fptr, &chunk->F.store_id, sizeof(dbid_t));
++	chunk->F.store_id = le64toh(chunk->F.store_id);
+ 
+ 	rc = persist__read_string(db_fptr, &chunk->source.id);
+ 	if(rc){
+@@ -205,7 +208,7 @@ int persist__chunk_retain_read_v234(FILE *db_fptr, struct P_retain *chunk)
+ 		log__printf(NULL, MOSQ_LOG_ERR, "Error: %s.", err);
+ 		return 1;
+ 	}
+-	chunk->F.store_id = i64temp;
++	chunk->F.store_id = le64toh(i64temp);
+ 
+ 	return MOSQ_ERR_SUCCESS;
+ }
+diff --git a/src/persist_read_v5.c b/src/persist_read_v5.c
+index abc9a580..12d3e801 100644
+--- a/src/persist_read_v5.c
++++ b/src/persist_read_v5.c
+@@ -24,6 +24,7 @@ Contributors:
+ #include <arpa/inet.h>
+ #endif
+ #include <assert.h>
++#include <endian.h>
+ #include <errno.h>
+ #include <fcntl.h>
+ #include <stdio.h>
+@@ -116,6 +117,7 @@ int persist__chunk_client_msg_read_v56(FILE *db_fptr, struct P_client_msg *chunk
+ 	read_e(db_fptr, &chunk->F, sizeof(struct PF_client_msg));
+ 	chunk->F.mid = ntohs(chunk->F.mid);
+ 	chunk->F.id_len = ntohs(chunk->F.id_len);
++	chunk->F.store_id = le64toh(chunk->F.store_id);
+ 
+ 	length -= (uint32_t)(sizeof(struct PF_client_msg) + chunk->F.id_len);
+ 
+@@ -165,6 +167,7 @@ int persist__chunk_msg_store_read_v56(FILE *db_fptr, struct P_msg_store *chunk,
+ 	chunk->F.source_username_len = ntohs(chunk->F.source_username_len);
+ 	chunk->F.topic_len = ntohs(chunk->F.topic_len);
+ 	chunk->F.source_port = ntohs(chunk->F.source_port);
++	chunk->F.store_id = le64toh(chunk->F.store_id);
+ 
+ 	length -= (uint32_t)(sizeof(struct PF_msg_store) + chunk->F.payloadlen + chunk->F.source_id_len + chunk->F.source_username_len + chunk->F.topic_len);
+ 
+@@ -246,6 +249,7 @@ int persist__chunk_retain_read_v56(FILE *db_fptr, struct P_retain *chunk)
+ 		log__printf(NULL, MOSQ_LOG_ERR, "Error: %s.", strerror(errno));
+ 		return 1;
+ 	}
++	chunk->F.store_id = le64toh(chunk->F.store_id);
+ 	return MOSQ_ERR_SUCCESS;
+ }
+ 
+diff --git a/src/persist_write.c b/src/persist_write.c
+index ccfbc29c..93a32639 100644
+--- a/src/persist_write.c
++++ b/src/persist_write.c
+@@ -273,7 +273,7 @@ static int persist__retain_save(FILE *db_fptr, struct mosquitto__retainhier *nod
+ 
+ 	if(node->retained && strncmp(node->retained->topic, "$SYS", 4)){
+ 		/* Don't save $SYS messages. */
+-		retain_chunk.F.store_id = node->retained->db_id;
++		retain_chunk.F.store_id = htole64(node->retained->db_id);
+ 		rc = persist__chunk_retain_write_v6(db_fptr, &retain_chunk);
+ 		if(rc){
+ 			return rc;
+@@ -367,7 +367,7 @@ int persist__backup(bool shutdown)
+ 	write_e(db_fptr, &db_version_w, sizeof(uint32_t));
+ 
+ 	memset(&cfg_chunk, 0, sizeof(struct PF_cfg));
+-	cfg_chunk.last_db_id = db.last_db_id;
++	cfg_chunk.last_db_id = htole64(db.last_db_id);
+ 	cfg_chunk.shutdown = shutdown;
+ 	cfg_chunk.dbid_size = sizeof(dbid_t);
+ 	if(persist__chunk_cfg_write_v6(db_fptr, &cfg_chunk)){
+diff --git a/src/persist_write_v5.c b/src/persist_write_v5.c
+index 8c9f6c34..b9fb5a8e 100644
+--- a/src/persist_write_v5.c
++++ b/src/persist_write_v5.c
+@@ -24,6 +24,7 @@ Contributors:
+ #include <arpa/inet.h>
+ #endif
+ #include <assert.h>
++#include <endian.h>
+ #include <errno.h>
+ #include <fcntl.h>
+ #include <stdio.h>
+@@ -100,6 +101,7 @@ int persist__chunk_client_msg_write_v6(FILE *db_fptr, struct P_client_msg *chunk
+ 
+ 	chunk->F.mid = htons(chunk->F.mid);
+ 	chunk->F.id_len = htons(chunk->F.id_len);
++	chunk->F.store_id = htole64(chunk->F.store_id);
+ 
+ 	header.chunk = htonl(DB_CHUNK_CLIENT_MSG);
+ 	header.length = htonl((uint32_t)sizeof(struct PF_client_msg) + id_len + proplen);
+@@ -149,6 +151,7 @@ int persist__chunk_message_store_write_v6(FILE *db_fptr, struct P_msg_store *chu
+ 		proplen += property__get_remaining_length(chunk->properties);
+ 	}
+ 
++	chunk->F.store_id = htole64(chunk->F.store_id);
+ 	chunk->F.payloadlen = htonl(chunk->F.payloadlen);
+ 	chunk->F.source_mid = htons(chunk->F.source_mid);
+ 	chunk->F.source_id_len = htons(chunk->F.source_id_len);
+@@ -206,6 +209,7 @@ int persist__chunk_retain_write_v6(FILE *db_fptr, struct P_retain *chunk)
+ 
+ 	header.chunk = htonl(DB_CHUNK_RETAIN);
+ 	header.length = htonl((uint32_t)sizeof(struct PF_retain));
++	chunk->F.store_id = htole64(chunk->F.store_id);
+ 
+ 	write_e(db_fptr, &header, sizeof(struct PF_header));
+ 	write_e(db_fptr, &chunk->F, sizeof(struct PF_retain));
+-- 
+2.35.1
+