diff options
Diffstat (limited to 'package/network/services/dnsmasq/patches/100-remove-old-runtime-kernel-support.patch')
| -rw-r--r-- | package/network/services/dnsmasq/patches/100-remove-old-runtime-kernel-support.patch | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/package/network/services/dnsmasq/patches/100-remove-old-runtime-kernel-support.patch b/package/network/services/dnsmasq/patches/100-remove-old-runtime-kernel-support.patch new file mode 100644 index 0000000000..8a4e58cee7 --- /dev/null +++ b/package/network/services/dnsmasq/patches/100-remove-old-runtime-kernel-support.patch @@ -0,0 +1,178 @@ +From 7df4c681678612d196b4e1eec24963d181fdb28a Mon Sep 17 00:00:00 2001 +From: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk> +Date: Sun, 5 Apr 2020 17:18:23 +0100 +Subject: [PATCH] drop runtime old kernel support + +Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk> +--- + src/dnsmasq.c | 4 ---- + src/dnsmasq.h | 5 +--- + src/ipset.c | 64 ++++----------------------------------------------- + src/netlink.c | 3 +-- + src/util.c | 19 --------------- + 5 files changed, 6 insertions(+), 89 deletions(-) + +--- a/src/dnsmasq.c ++++ b/src/dnsmasq.c +@@ -94,10 +94,6 @@ int main (int argc, char **argv) + + read_opts(argc, argv, compile_opts); + +-#ifdef HAVE_LINUX_NETWORK +- daemon->kernel_version = kernel_version(); +-#endif +- + if (daemon->edns_pktsz < PACKETSZ) + daemon->edns_pktsz = PACKETSZ; + +--- a/src/dnsmasq.h ++++ b/src/dnsmasq.h +@@ -1110,7 +1110,7 @@ extern struct daemon { + int inotifyfd; + #endif + #if defined(HAVE_LINUX_NETWORK) +- int netlinkfd, kernel_version; ++ int netlinkfd; + #elif defined(HAVE_BSD_NETWORK) + int dhcp_raw_fd, dhcp_icmp_fd, routefd; + #endif +@@ -1290,9 +1290,6 @@ int read_write(int fd, unsigned char *pa + void close_fds(long max_fd, int spare1, int spare2, int spare3); + int wildcard_match(const char* wildcard, const char* match); + int wildcard_matchn(const char* wildcard, const char* match, int num); +-#ifdef HAVE_LINUX_NETWORK +-int kernel_version(void); +-#endif + + /* log.c */ + void die(char *message, char *arg1, int exit_code) ATTRIBUTE_NORETURN; +--- a/src/ipset.c ++++ b/src/ipset.c +@@ -70,7 +70,7 @@ struct my_nfgenmsg { + + #define NL_ALIGN(len) (((len)+3) & ~(3)) + static const struct sockaddr_nl snl = { .nl_family = AF_NETLINK }; +-static int ipset_sock, old_kernel; ++static int ipset_sock; + static char *buffer; + + static inline void add_attr(struct nlmsghdr *nlh, uint16_t type, size_t len, const void *data) +@@ -85,12 +85,7 @@ static inline void add_attr(struct nlmsg + + void ipset_init(void) + { +- old_kernel = (daemon->kernel_version < KERNEL_VERSION(2,6,32)); +- +- if (old_kernel && (ipset_sock = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) != -1) +- return; +- +- if (!old_kernel && ++ if ( + (buffer = safe_malloc(BUFF_SZ)) && + (ipset_sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER)) != -1 && + (bind(ipset_sock, (struct sockaddr *)&snl, sizeof(snl)) != -1)) +@@ -147,65 +142,14 @@ static int new_add_to_ipset(const char * + return errno == 0 ? 0 : -1; + } + +- +-static int old_add_to_ipset(const char *setname, const union all_addr *ipaddr, int remove) +-{ +- socklen_t size; +- struct ip_set_req_adt_get { +- unsigned op; +- unsigned version; +- union { +- char name[IPSET_MAXNAMELEN]; +- uint16_t index; +- } set; +- char typename[IPSET_MAXNAMELEN]; +- } req_adt_get; +- struct ip_set_req_adt { +- unsigned op; +- uint16_t index; +- uint32_t ip; +- } req_adt; +- +- if (strlen(setname) >= sizeof(req_adt_get.set.name)) +- { +- errno = ENAMETOOLONG; +- return -1; +- } +- +- req_adt_get.op = 0x10; +- req_adt_get.version = 3; +- strcpy(req_adt_get.set.name, setname); +- size = sizeof(req_adt_get); +- if (getsockopt(ipset_sock, SOL_IP, 83, &req_adt_get, &size) < 0) +- return -1; +- req_adt.op = remove ? 0x102 : 0x101; +- req_adt.index = req_adt_get.set.index; +- req_adt.ip = ntohl(ipaddr->addr4.s_addr); +- if (setsockopt(ipset_sock, SOL_IP, 83, &req_adt, sizeof(req_adt)) < 0) +- return -1; +- +- return 0; +-} +- +- +- + int add_to_ipset(const char *setname, const union all_addr *ipaddr, int flags, int remove) + { + int ret = 0, af = AF_INET; + + if (flags & F_IPV6) +- { + af = AF_INET6; +- /* old method only supports IPv4 */ +- if (old_kernel) +- { +- errno = EAFNOSUPPORT ; +- ret = -1; +- } +- } +- +- if (ret != -1) +- ret = old_kernel ? old_add_to_ipset(setname, ipaddr, remove) : new_add_to_ipset(setname, ipaddr, af, remove); ++ ++ ret = new_add_to_ipset(setname, ipaddr, af, remove); + + if (ret == -1) + my_syslog(LOG_ERR, _("failed to update ipset %s: %s"), setname, strerror(errno)); +--- a/src/netlink.c ++++ b/src/netlink.c +@@ -82,8 +82,7 @@ void netlink_init(void) + } + + if (daemon->netlinkfd == -1 || +- (daemon->kernel_version >= KERNEL_VERSION(2,6,30) && +- setsockopt(daemon->netlinkfd, SOL_NETLINK, NETLINK_NO_ENOBUFS, &opt, sizeof(opt)) == -1) || ++ (setsockopt(daemon->netlinkfd, SOL_NETLINK, NETLINK_NO_ENOBUFS, &opt, sizeof(opt)) == -1) || + getsockname(daemon->netlinkfd, (struct sockaddr *)&addr, &slen) == -1) + die(_("cannot create netlink socket: %s"), NULL, EC_MISC); + +--- a/src/util.c ++++ b/src/util.c +@@ -786,22 +786,3 @@ int wildcard_matchn(const char* wildcard + + return (!num) || (*wildcard == *match); + } +- +-#ifdef HAVE_LINUX_NETWORK +-int kernel_version(void) +-{ +- struct utsname utsname; +- int version; +- char *split; +- +- if (uname(&utsname) < 0) +- die(_("failed to find kernel version: %s"), NULL, EC_MISC); +- +- split = strtok(utsname.release, "."); +- version = (split ? atoi(split) : 0); +- split = strtok(NULL, "."); +- version = version * 256 + (split ? atoi(split) : 0); +- split = strtok(NULL, "."); +- return version * 256 + (split ? atoi(split) : 0); +-} +-#endif |