gb_proxy: cosmetic: Use 'bool' in data structures where applicable

If we ever only use 0/1 in an 'int', we should have used 'bool'.

Change-Id: I63876f52d5de87e4c99d92669270fd1f487e217c

5 files changed, 36 insertions, 35 deletions

diff --git a/include/osmocom/sgsn/gb_proxy.h b/include/osmocom/sgsn/gb_proxy.h
index a3e1a0253..1e8fb253c 100644
--- a/include/osmocom/sgsn/gb_proxy.h
+++ b/include/osmocom/sgsn/gb_proxy.h
@@ -10,6 +10,7 @@
 
 #include <sys/types.h>
 #include <regex.h>
+#include <stdbool.h>
 
 #define GBPROXY_INIT_VU_GEN_TX 256
 
@@ -83,7 +84,7 @@ enum gbproxy_match_id {
 };
 
 struct gbproxy_match {
-	int   enable;		/* is this match enabled? */
+	bool  enable;		/* is this match enabled? */
 	char *re_str;		/* regular expression (for IMSI) in string format */
 	regex_t re_comp;	/* compiled regular expression (for IMSI) */
 };
@@ -119,11 +120,11 @@ struct gbproxy_config {
 	uint32_t stored_msgs_max_len;
 
 	/* Should the P-TMSI be patched on the fly (required for 2-SGSN config) */
-	int patch_ptmsi;
+	bool patch_ptmsi;
 	/* Should the IMSI be acquired by the proxy (required for 2-SGSN config) */
-	int acquire_imsi;
+	bool acquire_imsi;
 	/* Should we route subscribers to two different SGSNs? */
-	int route_to_sgsn2;
+	bool route_to_sgsn2;
 	/* NSEI of the second SGSN */
 	uint16_t nsip_sgsn2_nsei;
 	/* should we keep a cache of per-subscriber state even after de-registration? */
@@ -154,7 +155,7 @@ struct gbproxy_peer {
 
 	/* BVCI used for Point-to-Point to this peer */
 	uint16_t bvci;
-	int blocked;
+	bool blocked;
 
 	/* Routeing Area that this peer is part of (raw 04.08 encoding) */
 	uint8_t ra[6];
@@ -175,9 +176,9 @@ struct gbproxy_tlli_state {
 	/* newly-assigned TLLI (e.g. during P-TMSI allocation procedure) */
 	uint32_t assigned;
 	/* has the BSS side validated (confirmed) the new TLLI? */
-	int bss_validated;
+	bool bss_validated;
 	/* has the SGSN side validated (confirmed) the new TLLI? */
-	int net_validated;
+	bool net_validated;
 	/* NOTE: once both are validated, we set current = assigned and assigned = 0 */
 
 	/* The P-TMSI for this subscriber */
@@ -204,7 +205,7 @@ struct gbproxy_link_info {
 	size_t imsi_len;
 
 	/* is the IMSI acquisition still pending? */
-	int imsi_acq_pending;
+	bool imsi_acq_pending;
 
 	/* queue of stored UL messages (until IMSI acquisition completes and we can
 	 * determine which of the SGSNs we should route this to */
@@ -215,10 +216,10 @@ struct gbproxy_link_info {
 	unsigned vu_gen_tx_bss;
 
 	/* is this subscriber deregistered (TLLI invalidated)? */
-	int is_deregistered;
+	bool is_deregistered;
 
 	/* does this link match either the (2-SGSN) routing or the patching rule? */
-	int is_matching[GBPROX_MATCH_LAST];
+	bool is_matching[GBPROX_MATCH_LAST];
 };
 
 
diff --git a/src/gprs/gb_proxy.c b/src/gprs/gb_proxy.c
index 0b5758a33..3da7bfdbb 100644
--- a/src/gprs/gb_proxy.c
+++ b/src/gprs/gb_proxy.c
@@ -310,7 +310,7 @@ static int gbproxy_restart_imsi_acquisition(struct gbproxy_link_info* link_info)
 		in_progress = 1;
 
 	gbproxy_link_info_discard_messages(link_info);
-	link_info->imsi_acq_pending = 0;
+	link_info->imsi_acq_pending = false;
 
 	return in_progress;
 }
@@ -531,7 +531,7 @@ static int gbproxy_imsi_acquisition(struct gbproxy_peer *peer,
 		 * implementation relies on the MS doing proper retransmissions
 		 * of the triggering message instead */
 
-		link_info->imsi_acq_pending = 1;
+		link_info->imsi_acq_pending = true;
 	}
 
 	return 0;
@@ -836,11 +836,11 @@ static int block_unblock_peer(struct gbproxy_config *cfg, uint16_t ptp_bvci, uin
 
 	switch (pdu_type) {
 	case BSSGP_PDUT_BVC_BLOCK_ACK:
-		peer->blocked = 1;
+		peer->blocked = true;
 		rate_ctr_inc(&peer->ctrg->ctr[GBPROX_PEER_CTR_BLOCKED]);
 		break;
 	case BSSGP_PDUT_BVC_UNBLOCK_ACK:
-		peer->blocked = 0;
+		peer->blocked = false;
 		rate_ctr_inc(&peer->ctrg->ctr[GBPROX_PEER_CTR_UNBLOCKED]);
 		break;
 	default:
diff --git a/src/gprs/gb_proxy_patch.c b/src/gprs/gb_proxy_patch.c
index 251bb67d6..6235b04f4 100644
--- a/src/gprs/gb_proxy_patch.c
+++ b/src/gprs/gb_proxy_patch.c
@@ -398,7 +398,7 @@ void gbproxy_clear_patch_filter(struct gbproxy_match *match)
 {
 	if (match->enable) {
 		regfree(&match->re_comp);
-		match->enable = 0;
+		match->enable = false;
 	}
 	talloc_free(match->re_str);
 	match->re_str = NULL;
@@ -419,7 +419,7 @@ int gbproxy_set_patch_filter(struct gbproxy_match *match, const char *filter,
 		     REG_EXTENDED | REG_NOSUB | REG_ICASE);
 
 	if (rc == 0) {
-		match->enable = 1;
+		match->enable = true;
 		match->re_str = talloc_strdup(tall_sgsn_ctx, filter);
 		return 0;
 	}
diff --git a/src/gprs/gb_proxy_tlli.c b/src/gprs/gb_proxy_tlli.c
index 0c027d5fb..4e21ede86 100644
--- a/src/gprs/gb_proxy_tlli.c
+++ b/src/gprs/gb_proxy_tlli.c
@@ -284,8 +284,8 @@ void gbproxy_reassign_tlli(struct gbproxy_tlli_state *tlli_state,
 
 	/* Remember assigned TLLI */
 	tlli_state->assigned = new_tlli;
-	tlli_state->bss_validated = 0;
-	tlli_state->net_validated = 0;
+	tlli_state->bss_validated = false;
+	tlli_state->net_validated = false;
 }
 
 uint32_t gbproxy_map_tlli(uint32_t other_tlli,
@@ -325,9 +325,9 @@ static void gbproxy_validate_tlli(struct gbproxy_tlli_state *tlli_state,
 
 	/* See GSM 04.08, 4.7.1.5 */
 	if (to_bss)
-		tlli_state->net_validated = 1;
+		tlli_state->net_validated = true;
 	else
-		tlli_state->bss_validated = 1;
+		tlli_state->bss_validated = true;
 
 	if (!tlli_state->bss_validated || !tlli_state->net_validated)
 		return;
@@ -367,7 +367,7 @@ static int gbproxy_unregister_link_info(struct gbproxy_peer *peer,
 	link_info->sgsn_tlli.current = 0;
 	link_info->sgsn_tlli.assigned = 0;
 
-	link_info->is_deregistered = 1;
+	link_info->is_deregistered = true;
 
 	gbproxy_reset_link(link_info);
 
@@ -424,7 +424,7 @@ static void gbproxy_assign_imsi(struct gbproxy_peer *peer,
 			&peer->cfg->matches[match_id],
 			parse_ctx->imsi, parse_ctx->imsi_len);
 		if (imsi_matches >= 0)
-			link_info->is_matching[match_id] = imsi_matches;
+			link_info->is_matching[match_id] = imsi_matches ? true : false;
 	}
 }
 
@@ -498,7 +498,7 @@ static struct gbproxy_link_info *gbproxy_get_link_info_ul(
 	if (!link_info)
 		return NULL;
 
-	link_info->is_deregistered = 0;
+	link_info->is_deregistered = false;
 
 	return link_info;
 }
@@ -577,7 +577,7 @@ static struct gbproxy_link_info *gbproxy_get_link_info_dl(
 			peer, parse_ctx->imsi, parse_ctx->imsi_len);
 
 	if (link_info)
-		link_info->is_deregistered = 0;
+		link_info->is_deregistered = false;
 
 	return link_info;
 }
diff --git a/src/gprs/gb_proxy_vty.c b/src/gprs/gb_proxy_vty.c
index 52c39fdcd..5c4f45420 100644
--- a/src/gprs/gb_proxy_vty.c
+++ b/src/gprs/gb_proxy_vty.c
@@ -241,7 +241,7 @@ DEFUN(cfg_gbproxy_match_imsi,
 		return CMD_WARNING;
 	}
 
-	g_cfg->acquire_imsi = 1;
+	g_cfg->acquire_imsi = true;
 
 	return CMD_SUCCESS;
 }
@@ -256,7 +256,7 @@ DEFUN(cfg_gbproxy_no_match_imsi,
 	for (match_id = 0; match_id < ARRAY_SIZE(g_cfg->matches); ++match_id)
 		gbproxy_clear_patch_filter(&g_cfg->matches[match_id]);
 
-	g_cfg->acquire_imsi = 0;
+	g_cfg->acquire_imsi = false;
 
 	return CMD_SUCCESS;
 }
@@ -329,7 +329,7 @@ DEFUN(cfg_gbproxy_patch_ptmsi,
       "patch-ptmsi",
       GBPROXY_PATCH_PTMSI_STR)
 {
-	g_cfg->patch_ptmsi = 1;
+	g_cfg->patch_ptmsi = true;
 
 	return CMD_SUCCESS;
 }
@@ -339,7 +339,7 @@ DEFUN(cfg_gbproxy_no_patch_ptmsi,
       "no patch-ptmsi",
       NO_STR GBPROXY_PATCH_PTMSI_STR)
 {
-	g_cfg->patch_ptmsi = 0;
+	g_cfg->patch_ptmsi = false;
 
 	return CMD_SUCCESS;
 }
@@ -355,7 +355,7 @@ DEFUN(cfg_gbproxy_acquire_imsi,
       "acquire-imsi",
       GBPROXY_ACQUIRE_IMSI_STR)
 {
-	g_cfg->acquire_imsi = 1;
+	g_cfg->acquire_imsi = true;
 
 	return CMD_SUCCESS;
 }
@@ -365,7 +365,7 @@ DEFUN(cfg_gbproxy_no_acquire_imsi,
       "no acquire-imsi",
       NO_STR GBPROXY_ACQUIRE_IMSI_STR)
 {
-	g_cfg->acquire_imsi = 0;
+	g_cfg->acquire_imsi = false;
 
 	return CMD_SUCCESS;
 }
@@ -387,10 +387,10 @@ DEFUN(cfg_gbproxy_secondary_sgsn,
 		return CMD_WARNING;
 	}
 
-	g_cfg->route_to_sgsn2 = 1;
+	g_cfg->route_to_sgsn2 = true;
 	g_cfg->nsip_sgsn2_nsei = nsei;
 
-	g_cfg->patch_ptmsi = 1;
+	g_cfg->patch_ptmsi = true;
 
 	return CMD_SUCCESS;
 }
@@ -400,10 +400,10 @@ DEFUN(cfg_gbproxy_no_secondary_sgsn,
       "no secondary-sgsn",
       NO_STR GBPROXY_SECOND_SGSN_STR)
 {
-	g_cfg->route_to_sgsn2 = 0;
+	g_cfg->route_to_sgsn2 = false;
 	g_cfg->nsip_sgsn2_nsei = 0xFFFF;
 
-	g_cfg->patch_ptmsi = 0;
+	g_cfg->patch_ptmsi = false;
 
 	return CMD_SUCCESS;
 }
@@ -849,7 +849,7 @@ DEFUN_DEPRECATED(cfg_gbproxy_broken_apn_match,
 		return CMD_WARNING;
 	}
 
-	g_cfg->acquire_imsi = 1;
+	g_cfg->acquire_imsi = true;
 
 	return CMD_SUCCESS;
 }