X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Flibsystemd-network%2Fnetwork-internal.c;h=7a7a4eac9d505cb0605b6c9f64e16cbfe8a10a0c;hp=261603f841df2861fcc65f865f2d65381252a690;hb=69f08c8338560d5d8192e7d49d21cfe93656385e;hpb=09bee74d7a5f266b175baa19892fa84a9da51d7f diff --git a/src/libsystemd-network/network-internal.c b/src/libsystemd-network/network-internal.c index 261603f84..7a7a4eac9 100644 --- a/src/libsystemd-network/network-internal.c +++ b/src/libsystemd-network/network-internal.c @@ -28,27 +28,40 @@ #include "siphash24.h" #include "libudev-private.h" #include "network-internal.h" +#include "dhcp-lease-internal.h" #include "log.h" #include "utf8.h" #include "util.h" #include "conf-parser.h" #include "condition.h" -#define HASH_KEY SD_ID128_MAKE(d3,1e,48,fa,90,fe,4b,4c,9d,af,d5,d7,a1,b1,2e,8a) - -int net_get_unique_predictable_data(struct udev_device *device, uint8_t result[8]) { - size_t l, sz = 0; +const char *net_get_name(struct udev_device *device) { const char *name = NULL, *field = NULL; - int r; - uint8_t *v; + + assert(device); /* fetch some persistent data unique (on this machine) to this device */ - FOREACH_STRING(field, "ID_NET_NAME_ONBOARD", "ID_NET_NAME_SLOT", "ID_NET_NAME_PATH", "ID_NET_NAME_MAC") { + FOREACH_STRING(field, "ID_NET_NAME_ONBOARD", "ID_NET_NAME_SLOT", + "ID_NET_NAME_PATH", "ID_NET_NAME_MAC") { name = udev_device_get_property_value(device, field); if (name) break; } + return name; +} + +#define HASH_KEY SD_ID128_MAKE(d3,1e,48,fa,90,fe,4b,4c,9d,af,d5,d7,a1,b1,2e,8a) + +int net_get_unique_predictable_data(struct udev_device *device, uint8_t result[8]) { + size_t l, sz = 0; + const char *name = NULL; + int r; + uint8_t *v; + + assert(device); + + name = net_get_name(device); if (!name) return -ENOENT; @@ -179,7 +192,7 @@ int config_parse_ifname(const char *unit, void *userdata) { char **s = data; - char *n; + _cleanup_free_ char *n = NULL; assert(filename); assert(lvalue); @@ -198,12 +211,11 @@ int config_parse_ifname(const char *unit, } free(*s); - if (*n) + if (*n) { *s = n; - else { - free(n); + n = NULL; + } else *s = NULL; - } return 0; } @@ -327,41 +339,6 @@ int net_parse_inaddr(const char *address, unsigned char *family, void *dst) { return 0; } -int load_module(struct kmod_ctx *ctx, const char *mod_name) { - struct kmod_list *modlist = NULL, *l; - int r; - - assert(ctx); - assert(mod_name); - - r = kmod_module_new_from_lookup(ctx, mod_name, &modlist); - if (r < 0) - return r; - - if (!modlist) { - log_error("Failed to find module '%s'", mod_name); - return -ENOENT; - } - - kmod_list_foreach(l, modlist) { - struct kmod_module *mod = kmod_module_get_module(l); - - r = kmod_module_probe_insert_module(mod, 0, NULL, NULL, NULL, NULL); - if (r == 0) - log_info("Inserted module '%s'", kmod_module_get_name(mod)); - else { - log_error("Failed to insert '%s': %s", kmod_module_get_name(mod), - strerror(-r)); - } - - kmod_module_unref(mod); - } - - kmod_module_unref_list(modlist); - - return r; -} - void serialize_in_addrs(FILE *f, const char *key, struct in_addr *addresses, size_t size) { unsigned i; @@ -456,3 +433,90 @@ int deserialize_in6_addrs(struct in6_addr **ret, size_t *ret_size, const char *s return 0; } + +void serialize_dhcp_routes(FILE *f, const char *key, struct sd_dhcp_route *routes, size_t size) { + unsigned i; + + assert(f); + assert(key); + assert(routes); + assert(size); + + fprintf(f, "%s=", key); + + for (i = 0; i < size; i++) + fprintf(f, "%s/%" PRIu8 ",%s%s", inet_ntoa(routes[i].dst_addr), + routes[i].dst_prefixlen, inet_ntoa(routes[i].gw_addr), + (i < (size - 1)) ? " ": ""); + + fputs("\n", f); +} + +int deserialize_dhcp_routes(struct sd_dhcp_route **ret, size_t *ret_size, size_t *ret_allocated, const char *string) { + _cleanup_free_ struct sd_dhcp_route *routes = NULL; + size_t size = 0, allocated = 0; + char *word, *state; + size_t len; + + assert(ret); + assert(ret_size); + assert(ret_allocated); + assert(string); + + FOREACH_WORD(word, len, string, state) { + /* WORD FORMAT: dst_ip/dst_prefixlen,gw_ip */ + _cleanup_free_ char* entry = NULL; + char *tok, *tok_end; + unsigned n; + int r; + + if (!GREEDY_REALLOC(routes, allocated, size + 1)) + return -ENOMEM; + + entry = strndup(word, len); + if(!entry) + return -ENOMEM; + + tok = entry; + + /* get the subnet */ + tok_end = strchr(tok, '/'); + if (!tok_end) + continue; + *tok_end = '\0'; + + r = inet_aton(tok, &routes[size].dst_addr); + if (r == 0) + continue; + + tok = tok_end + 1; + + /* get the prefixlen */ + tok_end = strchr(tok, ','); + if (!tok_end) + continue; + + *tok_end = '\0'; + + r = safe_atou(tok, &n); + if (r < 0 || n > 32) + continue; + + routes[size].dst_prefixlen = (uint8_t) n; + tok = tok_end + 1; + + /* get the gateway */ + r = inet_aton(tok, &routes[size].gw_addr); + if (r == 0) + continue; + + size++; + } + + *ret_size = size; + *ret_allocated = allocated; + *ret = routes; + routes = NULL; + + return 0; +}