From 4203fc8b818e68113aed2f3dc0e47a00f4059a30 Mon Sep 17 00:00:00 2001 From: Tom Gundersen Date: Fri, 26 Jun 2015 00:07:25 +0200 Subject: [PATCH] sd-netlink: make a couple of helper functions static Also rename from rtnl_* to netlink_*. --- src/libsystemd/sd-netlink/netlink-internal.h | 8 -- src/libsystemd/sd-netlink/netlink-message.c | 114 +++++++++---------- 2 files changed, 57 insertions(+), 65 deletions(-) diff --git a/src/libsystemd/sd-netlink/netlink-internal.h b/src/libsystemd/sd-netlink/netlink-internal.h index 7290f4e875..31bc1d3fbd 100644 --- a/src/libsystemd/sd-netlink/netlink-internal.h +++ b/src/libsystemd/sd-netlink/netlink-internal.h @@ -122,14 +122,6 @@ int socket_read_message(sd_netlink *nl); int rtnl_rqueue_make_room(sd_netlink *rtnl); int rtnl_rqueue_partial_make_room(sd_netlink *rtnl); -int rtnl_message_read_internal(sd_netlink_message *m, unsigned short type, void **data); -int rtnl_message_parse(sd_netlink_message *m, - size_t **rta_offset_tb, - unsigned short *rta_tb_size, - int max, - struct rtattr *rta, - unsigned int rt_len); - /* Make sure callbacks don't destroy the rtnl connection */ #define RTNL_DONT_DESTROY(rtnl) \ _cleanup_netlink_unref_ _unused_ sd_netlink *_dont_destroy_##rtnl = sd_netlink_ref(rtnl) diff --git a/src/libsystemd/sd-netlink/netlink-message.c b/src/libsystemd/sd-netlink/netlink-message.c index 6b6843e91b..23f369c576 100644 --- a/src/libsystemd/sd-netlink/netlink-message.c +++ b/src/libsystemd/sd-netlink/netlink-message.c @@ -475,7 +475,7 @@ int sd_netlink_message_close_container(sd_netlink_message *m) { return 0; } -int rtnl_message_read_internal(sd_netlink_message *m, unsigned short type, void **data) { +static int netlink_message_read_internal(sd_netlink_message *m, unsigned short type, void **data) { struct rtattr *rta; assert_return(m, -EINVAL); @@ -505,7 +505,7 @@ int sd_netlink_message_read_string(sd_netlink_message *m, unsigned short type, c if (r < 0) return r; - r = rtnl_message_read_internal(m, type, &attr_data); + r = netlink_message_read_internal(m, type, &attr_data); if (r < 0) return r; else if (strnlen(attr_data, r) >= (size_t) r) @@ -527,7 +527,7 @@ int sd_netlink_message_read_u8(sd_netlink_message *m, unsigned short type, uint8 if (r < 0) return r; - r = rtnl_message_read_internal(m, type, &attr_data); + r = netlink_message_read_internal(m, type, &attr_data); if (r < 0) return r; else if ((size_t) r < sizeof(uint8_t)) @@ -549,7 +549,7 @@ int sd_netlink_message_read_u16(sd_netlink_message *m, unsigned short type, uint if (r < 0) return r; - r = rtnl_message_read_internal(m, type, &attr_data); + r = netlink_message_read_internal(m, type, &attr_data); if (r < 0) return r; else if ((size_t) r < sizeof(uint16_t)) @@ -571,7 +571,7 @@ int sd_netlink_message_read_u32(sd_netlink_message *m, unsigned short type, uint if (r < 0) return r; - r = rtnl_message_read_internal(m, type, &attr_data); + r = netlink_message_read_internal(m, type, &attr_data); if (r < 0) return r; else if ((size_t)r < sizeof(uint32_t)) @@ -593,7 +593,7 @@ int sd_netlink_message_read_ether_addr(sd_netlink_message *m, unsigned short typ if (r < 0) return r; - r = rtnl_message_read_internal(m, type, &attr_data); + r = netlink_message_read_internal(m, type, &attr_data); if (r < 0) return r; else if ((size_t)r < sizeof(struct ether_addr)) @@ -615,7 +615,7 @@ int sd_netlink_message_read_cache_info(sd_netlink_message *m, unsigned short typ if (r < 0) return r; - r = rtnl_message_read_internal(m, type, &attr_data); + r = netlink_message_read_internal(m, type, &attr_data); if (r < 0) return r; else if ((size_t)r < sizeof(struct ifa_cacheinfo)) @@ -637,7 +637,7 @@ int sd_netlink_message_read_in_addr(sd_netlink_message *m, unsigned short type, if (r < 0) return r; - r = rtnl_message_read_internal(m, type, &attr_data); + r = netlink_message_read_internal(m, type, &attr_data); if (r < 0) return r; else if ((size_t)r < sizeof(struct in_addr)) @@ -659,7 +659,7 @@ int sd_netlink_message_read_in6_addr(sd_netlink_message *m, unsigned short type, if (r < 0) return r; - r = rtnl_message_read_internal(m, type, &attr_data); + r = netlink_message_read_internal(m, type, &attr_data); if (r < 0) return r; else if ((size_t)r < sizeof(struct in6_addr)) @@ -671,6 +671,41 @@ int sd_netlink_message_read_in6_addr(sd_netlink_message *m, unsigned short type, return 0; } +static int netlink_message_parse(sd_netlink_message *m, + size_t **rta_offset_tb, + unsigned short *rta_tb_size, + int count, + struct rtattr *rta, + unsigned int rt_len) { + unsigned short type; + size_t *tb; + + tb = new0(size_t, count); + if(!tb) + return -ENOMEM; + + *rta_tb_size = count; + + for (; RTA_OK(rta, rt_len); rta = RTA_NEXT(rta, rt_len)) { + type = RTA_TYPE(rta); + + /* if the kernel is newer than the headers we used + when building, we ignore out-of-range attributes + */ + if (type >= count) + continue; + + if (tb[type]) + log_debug("rtnl: message parse - overwriting repeated attribute"); + + tb[type] = (uint8_t *) rta - (uint8_t *) m->hdr; + } + + *rta_offset_tb = tb; + + return 0; +} + int sd_netlink_message_enter_container(sd_netlink_message *m, unsigned short type_id) { const NLType *nl_type; const NLTypeSystem *type_system; @@ -744,7 +779,7 @@ int sd_netlink_message_enter_container(sd_netlink_message *m, unsigned short typ } else return -EINVAL; - r = rtnl_message_read_internal(m, type_id, &container); + r = netlink_message_read_internal(m, type_id, &container); if (r < 0) return r; else @@ -752,12 +787,12 @@ int sd_netlink_message_enter_container(sd_netlink_message *m, unsigned short typ m->n_containers ++; - r = rtnl_message_parse(m, - &m->rta_offset_tb[m->n_containers], - &m->rta_tb_size[m->n_containers], - type_system_get_count(type_system), - container, - size); + r = netlink_message_parse(m, + &m->rta_offset_tb[m->n_containers], + &m->rta_tb_size[m->n_containers], + type_system_get_count(type_system), + container, + size); if (r < 0) { m->n_containers --; return r; @@ -810,41 +845,6 @@ int sd_netlink_message_get_errno(sd_netlink_message *m) { return err->error; } -int rtnl_message_parse(sd_netlink_message *m, - size_t **rta_offset_tb, - unsigned short *rta_tb_size, - int count, - struct rtattr *rta, - unsigned int rt_len) { - unsigned short type; - size_t *tb; - - tb = new0(size_t, count); - if(!tb) - return -ENOMEM; - - *rta_tb_size = count; - - for (; RTA_OK(rta, rt_len); rta = RTA_NEXT(rta, rt_len)) { - type = RTA_TYPE(rta); - - /* if the kernel is newer than the headers we used - when building, we ignore out-of-range attributes - */ - if (type >= count) - continue; - - if (tb[type]) - log_debug("rtnl: message parse - overwriting repeated attribute"); - - tb[type] = (uint8_t *) rta - (uint8_t *) m->hdr; - } - - *rta_offset_tb = tb; - - return 0; -} - int sd_netlink_message_rewind(sd_netlink_message *m) { const NLType *nl_type; uint16_t type; @@ -888,12 +888,12 @@ int sd_netlink_message_rewind(sd_netlink_message *m) { m->container_type_system[0] = type_system; - r = rtnl_message_parse(m, - &m->rta_offset_tb[m->n_containers], - &m->rta_tb_size[m->n_containers], - type_system_get_count(type_system), - (struct rtattr*)((uint8_t*)NLMSG_DATA(m->hdr) + NLMSG_ALIGN(size)), - NLMSG_PAYLOAD(m->hdr, size)); + r = netlink_message_parse(m, + &m->rta_offset_tb[m->n_containers], + &m->rta_tb_size[m->n_containers], + type_system_get_count(type_system), + (struct rtattr*)((uint8_t*)NLMSG_DATA(m->hdr) + NLMSG_ALIGN(size)), + NLMSG_PAYLOAD(m->hdr, size)); if (r < 0) return r; }