treewide: Mark constant references as const
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Stefano Brivio
parent
965f603238
commit
48582bf47f
29 changed files with 192 additions and 168 deletions
2
arp.c
2
arp.c
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@ -36,7 +36,7 @@
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*
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* Return: 1 if handled, -1 on failure
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*/
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int arp(struct ctx *c, struct pool *p)
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int arp(const struct ctx *c, const struct pool *p)
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{
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unsigned char swap[4];
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struct ethhdr *eh;
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2
arp.h
2
arp.h
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@ -20,6 +20,6 @@ struct arpmsg {
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unsigned char tip[4];
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} __attribute__((__packed__));
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int arp(struct ctx *c, struct pool *p);
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int arp(const struct ctx *c, const struct pool *p);
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#endif /* ARP_H */
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@ -6,9 +6,9 @@
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#ifndef CHECKSUM_H
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#define CHECKSUM_H
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uint32_t sum_16b(void *buf, size_t len);
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uint32_t sum_16b(const void *buf, size_t len);
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uint16_t csum_fold(uint32_t sum);
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uint16_t csum_unaligned(void *buf, size_t len, uint32_t init);
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uint16_t csum_unaligned(const void *buf, size_t len, uint32_t init);
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void csum_tcp4(struct iphdr *iph);
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uint16_t csum(const void *buf, size_t len, uint32_t init);
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8
conf.c
8
conf.c
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@ -364,7 +364,7 @@ static int conf_ns_check(void *arg)
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* Return: 0 on success, negative error code otherwise
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*/
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static int conf_ns_opt(struct ctx *c,
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char *nsdir, char *conf_userns, const char *optarg)
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char *nsdir, const char *conf_userns, const char *optarg)
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{
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int ufd = -1, nfd = -1, try, ret, netns_only_reset = c->netns_only;
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char userns[PATH_MAX] = { 0 }, netns[PATH_MAX];
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@ -702,7 +702,11 @@ pasta_opts:
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exit(EXIT_FAILURE);
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}
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void conf_print(struct ctx *c)
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/**
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* conf_print() - Print fundamental configuration parameters
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* @c: Execution context
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*/
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static void conf_print(const struct ctx *c)
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{
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char buf4[INET_ADDRSTRLEN], ifn[IFNAMSIZ];
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int i;
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9
dhcp.c
9
dhcp.c
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@ -178,7 +178,8 @@ static int fill(struct msg *m)
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*
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* Return: offset to corresponding compression pointer if any, -1 if not found
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*/
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static int opt_dns_search_dup_ptr(unsigned char *buf, char *cmp, size_t len)
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static int opt_dns_search_dup_ptr(unsigned char *buf, const char *cmp,
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size_t len)
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{
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unsigned int i;
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@ -202,7 +203,7 @@ static int opt_dns_search_dup_ptr(unsigned char *buf, char *cmp, size_t len)
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* @c: Execution context
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* @max_len: Maximum total length of option buffer
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*/
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static void opt_set_dns_search(struct ctx *c, size_t max_len)
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static void opt_set_dns_search(const struct ctx *c, size_t max_len)
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{
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char buf[NS_MAXDNAME];
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int i;
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@ -215,7 +216,7 @@ static void opt_set_dns_search(struct ctx *c, size_t max_len)
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for (i = 0; *c->dns_search[i].n; i++) {
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unsigned int n;
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int count = -1;
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char *p;
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const char *p;
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buf[0] = 0;
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for (p = c->dns_search[i].n, n = 1; *p; p++) {
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@ -263,7 +264,7 @@ static void opt_set_dns_search(struct ctx *c, size_t max_len)
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*
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* Return: 0 if it's not a DHCP message, 1 if handled, -1 on failure
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*/
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int dhcp(struct ctx *c, struct pool *p)
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int dhcp(const struct ctx *c, const struct pool *p)
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{
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size_t mlen, len, offset = 0, opt_len, opt_off = 0;
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struct ethhdr *eh;
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2
dhcp.h
2
dhcp.h
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@ -6,7 +6,7 @@
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#ifndef DHCP_H
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#define DHCP_H
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int dhcp(struct ctx *c, struct pool *p);
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int dhcp(const struct ctx *c, const struct pool *p);
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void dhcp_init(void);
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#endif /* DHCP_H */
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17
dhcpv6.c
17
dhcpv6.c
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@ -297,7 +297,8 @@ static struct resp_not_on_link_t {
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*
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* Return: pointer to option header, or NULL on malformed or missing option
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*/
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static struct opt_hdr *dhcpv6_opt(struct pool *p, size_t *offset, uint16_t type)
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static struct opt_hdr *dhcpv6_opt(const struct pool *p, size_t *offset,
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uint16_t type)
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{
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struct opt_hdr *o;
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size_t left;
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@ -322,13 +323,13 @@ static struct opt_hdr *dhcpv6_opt(struct pool *p, size_t *offset, uint16_t type)
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/**
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* dhcpv6_ia_notonlink() - Check if any IA contains non-appropriate addresses
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* @o: First option header to check for IAs
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* @rem_len: Remaining message length, host order
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* @addr: Address we want to lease to the client
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* @p: Packet pool, single packet starting from UDP header
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* @la: Address we want to lease to the client
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*
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* Return: pointer to non-appropriate IA_NA or IA_TA, if any, NULL otherwise
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*/
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static struct opt_hdr *dhcpv6_ia_notonlink(struct pool *p, struct in6_addr *la)
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static struct opt_hdr *dhcpv6_ia_notonlink(const struct pool *p,
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struct in6_addr *la)
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{
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char buf[INET6_ADDRSTRLEN];
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struct in6_addr *req_addr;
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@ -379,7 +380,7 @@ ia_ta:
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*
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* Return: updated length of response message buffer.
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*/
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static size_t dhcpv6_dns_fill(struct ctx *c, char *buf, int offset)
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static size_t dhcpv6_dns_fill(const struct ctx *c, char *buf, int offset)
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{
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struct opt_dns_servers *srv = NULL;
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struct opt_dns_search *srch = NULL;
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@ -447,7 +448,7 @@ search:
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*
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* Return: 0 if it's not a DHCPv6 message, 1 if handled, -1 on failure
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*/
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int dhcpv6(struct ctx *c, struct pool *p,
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int dhcpv6(struct ctx *c, const struct pool *p,
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const struct in6_addr *saddr, const struct in6_addr *daddr)
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{
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struct opt_hdr *ia, *bad_ia, *client_id, *server_id;
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@ -588,7 +589,7 @@ int dhcpv6(struct ctx *c, struct pool *p,
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* dhcpv6_init() - Initialise DUID and addresses for DHCPv6 server
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* @c: Execution context
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*/
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void dhcpv6_init(struct ctx *c)
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void dhcpv6_init(const struct ctx *c)
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{
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time_t y2k = 946684800; /* Epoch to 2000-01-01T00:00:00Z, no mktime() */
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uint32_t duid_time;
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4
dhcpv6.h
4
dhcpv6.h
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@ -6,8 +6,8 @@
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#ifndef DHCPV6_H
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#define DHCPV6_H
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int dhcpv6(struct ctx *c, struct pool *p,
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int dhcpv6(struct ctx *c, const struct pool *p,
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struct in6_addr *saddr, struct in6_addr *daddr);
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void dhcpv6_init(struct ctx *c);
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void dhcpv6_init(const struct ctx *c);
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#endif /* DHCPV6_H */
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15
icmp.c
15
icmp.c
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@ -65,8 +65,8 @@ static uint8_t icmp_act [IP_VERSIONS][USHRT_MAX / 8];
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* @events: epoll events bitmap
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* @now: Current timestamp, unused
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*/
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void icmp_sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
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struct timespec *now)
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void icmp_sock_handler(const struct ctx *c, union epoll_ref ref,
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uint32_t events, const struct timespec *now)
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{
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struct in6_addr a6 = { .s6_addr = { 0, 0, 0, 0,
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0, 0, 0, 0,
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@ -136,13 +136,14 @@ void icmp_sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
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* icmp_tap_handler() - Handle packets from tap
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* @c: Execution context
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* @af: Address family, AF_INET or AF_INET6
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* @addr: Destination address
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* @p: Packet pool, single packet with ICMP/ICMPv6 header
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* @now: Current timestamp
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*
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* Return: count of consumed packets (always 1, even if malformed)
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*/
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int icmp_tap_handler(struct ctx *c, int af, void *addr, struct pool *p,
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struct timespec *now)
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int icmp_tap_handler(const struct ctx *c, int af, const void *addr,
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const struct pool *p, const struct timespec *now)
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{
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size_t plen;
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@ -227,8 +228,8 @@ fail_sock:
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* @id: Echo identifier, host order
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* @ts: Timestamp from caller
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*/
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static void icmp_timer_one(struct ctx *c, int v6, uint16_t id,
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struct timespec *ts)
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static void icmp_timer_one(const struct ctx *c, int v6, uint16_t id,
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const struct timespec *ts)
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{
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struct icmp_id_sock *id_map = &icmp_id_map[v6 ? V6 : V4][id];
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@ -247,7 +248,7 @@ static void icmp_timer_one(struct ctx *c, int v6, uint16_t id,
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* @c: Execution context
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* @ts: Timestamp from caller
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*/
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void icmp_timer(struct ctx *c, struct timespec *ts)
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void icmp_timer(const struct ctx *c, const struct timespec *ts)
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{
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long *word, tmp;
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unsigned int i;
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10
icmp.h
10
icmp.h
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@ -10,11 +10,11 @@
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struct ctx;
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void icmp_sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
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struct timespec *now);
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int icmp_tap_handler(struct ctx *c, int af, void *addr, struct pool *p,
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struct timespec *now);
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void icmp_timer(struct ctx *c, struct timespec *ts);
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void icmp_sock_handler(const struct ctx *c, union epoll_ref ref,
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uint32_t events, const struct timespec *now);
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int icmp_tap_handler(const struct ctx *c, int af, const void *addr,
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const struct pool *p, const struct timespec *now);
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void icmp_timer(const struct ctx *c, const struct timespec *ts);
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/**
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* union icmp_epoll_ref - epoll reference portion for ICMP tracking
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4
ndp.c
4
ndp.c
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@ -45,8 +45,8 @@
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*
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* Return: 0 if not handled here, 1 if handled, -1 on failure
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*/
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int ndp(struct ctx *c, struct icmp6hdr *ih, unsigned char *eh_source,
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struct in6_addr *saddr)
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int ndp(struct ctx *c, const struct icmp6hdr *ih,
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const unsigned char *eh_source, const struct in6_addr *saddr)
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{
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char buf[BUFSIZ] = { 0 };
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struct ipv6hdr *ip6hr;
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4
ndp.h
4
ndp.h
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@ -6,7 +6,7 @@
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#ifndef NDP_H
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#define NDP_H
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int ndp(struct ctx *c, struct icmp6hdr *ih, unsigned char *eh_source,
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struct in6_addr *saddr);
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int ndp(struct ctx *c, const struct icmp6hdr *ih,
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const unsigned char *eh_source, const struct in6_addr *saddr);
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#endif /* NDP_H */
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@ -74,7 +74,7 @@ ns:
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*
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* Return: -EIO if sockets couldn't be set up, 0 otherwise
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*/
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int nl_sock_init(struct ctx *c)
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int nl_sock_init(const struct ctx *c)
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{
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if (c->mode == MODE_PASTA) {
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NS_CALL(nl_sock_init_do, c);
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@ -99,7 +99,7 @@ int nl_sock_init(struct ctx *c)
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*
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* Return: received length on success, negative error code on failure
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*/
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static int nl_req(int ns, char *buf, void *req, ssize_t len)
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static int nl_req(int ns, char *buf, const void *req, ssize_t len)
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{
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int s = ns ? nl_sock_ns : nl_sock, done = 0;
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char flush[BUFSIZ];
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@ -6,7 +6,7 @@
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#ifndef NETLINK_H
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#define NETLINK_H
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int nl_sock_init(struct ctx *c);
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int nl_sock_init(const struct ctx *c);
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unsigned int nl_get_ext_if(int *v4, int *v6);
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void nl_route(int ns, unsigned int ifi, sa_family_t af, void *gw);
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void nl_addr(int ns, unsigned int ifi, sa_family_t af,
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6
packet.c
6
packet.c
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@ -30,7 +30,7 @@
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* @line: For tracing: caller line of function call
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*/
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void packet_add_do(struct pool *p, size_t len, const char *start,
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const char *func, const int line)
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const char *func, int line)
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{
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size_t index = p->count;
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@ -81,8 +81,8 @@ void packet_add_do(struct pool *p, size_t len, const char *start,
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*
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* Return: pointer to start of data range, NULL on invalid range or descriptor
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*/
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void *packet_get_do(struct pool *p, size_t index, size_t offset, size_t len,
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size_t *left, const char *func, const int line)
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void *packet_get_do(const struct pool *p, size_t index, size_t offset,
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size_t len, size_t *left, const char *func, int line)
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{
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if (index > p->size || index > p->count) {
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if (func) {
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7
packet.h
7
packet.h
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@ -33,9 +33,10 @@ struct pool {
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};
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void packet_add_do(struct pool *p, size_t len, const char *start,
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const char *func, const int line);
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void *packet_get_do(struct pool *p, size_t index, size_t offset, size_t len,
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size_t *left, const char *func, const int line);
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const char *func, int line);
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void *packet_get_do(const struct pool *p, const size_t index,
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size_t offset, size_t len, size_t *left,
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const char *func, int line);
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void pool_flush(struct pool *p);
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#define packet_add(p, len, start) \
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14
passt.c
14
passt.c
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@ -93,8 +93,8 @@ char *ip_proto_str[IPPROTO_SCTP + 1] = {
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* @events: epoll events
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* @now: Current timestamp
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*/
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static void sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
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struct timespec *now)
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static void sock_handler(struct ctx *c, union epoll_ref ref,
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uint32_t events, const struct timespec *now)
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{
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trace("%s: %s packet from socket %i (events: 0x%08x)",
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c->mode == MODE_PASST ? "passt" : "pasta",
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@ -114,7 +114,7 @@ static void sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
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* @c: Execution context
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* @now: Current timestamp
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*/
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static void post_handler(struct ctx *c, struct timespec *now)
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static void post_handler(struct ctx *c, const struct timespec *now)
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{
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#define CALL_PROTO_HANDLER(c, now, lc, uc) \
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do { \
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@ -149,7 +149,7 @@ static void post_handler(struct ctx *c, struct timespec *now)
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* @c: Execution context
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* @now: Current timestamp
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*/
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static void timer_init(struct ctx *c, struct timespec *now)
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static void timer_init(struct ctx *c, const struct timespec *now)
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{
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c->tcp.timer_run = c->udp.timer_run = c->icmp.timer_run = *now;
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}
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@ -160,8 +160,8 @@ static void timer_init(struct ctx *c, struct timespec *now)
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* @eth_s: Ethernet source address, NULL if unchanged
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* @ip_da: Pointer to IPv4 destination address, NULL if unchanged
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*/
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void proto_update_l2_buf(unsigned char *eth_d, unsigned char *eth_s,
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uint32_t *ip_da)
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void proto_update_l2_buf(const unsigned char *eth_d, const unsigned char *eth_s,
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const uint32_t *ip_da)
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{
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tcp_update_l2_buf(eth_d, eth_s, ip_da);
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udp_update_l2_buf(eth_d, eth_s, ip_da);
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@ -171,7 +171,7 @@ void proto_update_l2_buf(unsigned char *eth_d, unsigned char *eth_s,
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* seccomp() - Set up seccomp filters depending on mode, won't return on failure
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* @c: Execution context
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*/
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static void seccomp(struct ctx *c)
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static void seccomp(const struct ctx *c)
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{
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struct sock_fprog prog;
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4
passt.h
4
passt.h
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@ -233,7 +233,7 @@ struct ctx {
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int low_rmem;
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};
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|
||||
void proto_update_l2_buf(unsigned char *eth_d, unsigned char *eth_s,
|
||||
uint32_t *ip_da);
|
||||
void proto_update_l2_buf(const unsigned char *eth_d, const unsigned char *eth_s,
|
||||
const uint32_t *ip_da);
|
||||
|
||||
#endif /* PASST_H */
|
||||
|
|
|
|||
10
pcap.c
10
pcap.c
|
|
@ -41,7 +41,7 @@
|
|||
static int pcap_fd = -1;
|
||||
|
||||
/* See pcap.h from libpcap, or pcap-savefile(5) */
|
||||
static struct {
|
||||
static const struct {
|
||||
uint32_t magic;
|
||||
#define PCAP_MAGIC 0xa1b2c3d4
|
||||
|
||||
|
|
@ -74,7 +74,7 @@ struct pcap_pkthdr {
|
|||
* @pkt: Pointer to data buffer, including L2 headers
|
||||
* @len: L2 packet length
|
||||
*/
|
||||
void pcap(char *pkt, size_t len)
|
||||
void pcap(const char *pkt, size_t len)
|
||||
{
|
||||
struct pcap_pkthdr h;
|
||||
struct timeval tv;
|
||||
|
|
@ -95,7 +95,7 @@ void pcap(char *pkt, size_t len)
|
|||
* pcapm() - Capture multiple frames from message header to pcap file
|
||||
* @mh: Pointer to sendmsg() message header buffer
|
||||
*/
|
||||
void pcapm(struct msghdr *mh)
|
||||
void pcapm(const struct msghdr *mh)
|
||||
{
|
||||
struct pcap_pkthdr h;
|
||||
struct iovec *iov;
|
||||
|
|
@ -130,7 +130,7 @@ fail:
|
|||
* pcapm() - Capture multiple frames from multiple message headers to pcap file
|
||||
* @mmh: Pointer to first sendmmsg() header
|
||||
*/
|
||||
void pcapmm(struct mmsghdr *mmh, unsigned int vlen)
|
||||
void pcapmm(const struct mmsghdr *mmh, unsigned int vlen)
|
||||
{
|
||||
struct pcap_pkthdr h;
|
||||
struct iovec *iov;
|
||||
|
|
@ -145,7 +145,7 @@ void pcapmm(struct mmsghdr *mmh, unsigned int vlen)
|
|||
h.tv_usec = tv.tv_usec;
|
||||
|
||||
for (i = 0; i < vlen; i++) {
|
||||
struct msghdr *mh = &mmh[i].msg_hdr;
|
||||
const struct msghdr *mh = &mmh[i].msg_hdr;
|
||||
|
||||
for (j = 0; j < mh->msg_iovlen; j++) {
|
||||
iov = &mh->msg_iov[j];
|
||||
|
|
|
|||
6
pcap.h
6
pcap.h
|
|
@ -6,9 +6,9 @@
|
|||
#ifndef PCAP_H
|
||||
#define PCAP_H
|
||||
|
||||
void pcap(char *pkt, size_t len);
|
||||
void pcapm(struct msghdr *mh);
|
||||
void pcapmm(struct mmsghdr *mmh, unsigned int vlen);
|
||||
void pcap(const char *pkt, size_t len);
|
||||
void pcapm(const struct msghdr *mh);
|
||||
void pcapmm(const struct mmsghdr *mmh, unsigned int vlen);
|
||||
void pcap_init(struct ctx *c);
|
||||
|
||||
#endif /* PCAP_H */
|
||||
|
|
|
|||
26
tap.c
26
tap.c
|
|
@ -66,7 +66,7 @@ static PACKET_POOL_NOINIT(pool_tap6, TAP_MSGS, pkt_buf);
|
|||
*
|
||||
* Return: return code from send() or write()
|
||||
*/
|
||||
int tap_send(struct ctx *c, void *data, size_t len, int vnet_pre)
|
||||
int tap_send(const struct ctx *c, const void *data, size_t len, int vnet_pre)
|
||||
{
|
||||
if (vnet_pre)
|
||||
pcap((char *)data + 4, len);
|
||||
|
|
@ -100,8 +100,8 @@ int tap_send(struct ctx *c, void *data, size_t len, int vnet_pre)
|
|||
* @len: L4 payload length
|
||||
* @flow: Flow label for TCP over IPv6
|
||||
*/
|
||||
void tap_ip_send(struct ctx *c, struct in6_addr *src, uint8_t proto,
|
||||
char *in, size_t len, uint32_t flow)
|
||||
void tap_ip_send(const struct ctx *c, const struct in6_addr *src, uint8_t proto,
|
||||
const char *in, size_t len, uint32_t flow)
|
||||
{
|
||||
char buf[USHRT_MAX];
|
||||
char *pkt = buf + 4;
|
||||
|
|
@ -258,9 +258,10 @@ static struct tap6_l4_t {
|
|||
* @seq6: Pointer to @struct tap_l4_seq6, can be NULL
|
||||
* @count: Count of packets in this sequence
|
||||
*/
|
||||
static void tap_packet_debug(struct iphdr *iph, struct ipv6hdr *ip6h,
|
||||
struct tap4_l4_t *seq4, uint8_t proto6,
|
||||
struct tap6_l4_t *seq6, int count)
|
||||
static void tap_packet_debug(const struct iphdr *iph,
|
||||
const struct ipv6hdr *ip6h,
|
||||
const struct tap4_l4_t *seq4, uint8_t proto6,
|
||||
const struct tap6_l4_t *seq6, int count)
|
||||
{
|
||||
char buf6s[INET6_ADDRSTRLEN], buf6d[INET6_ADDRSTRLEN];
|
||||
char buf4s[INET_ADDRSTRLEN], buf4d[INET_ADDRSTRLEN];
|
||||
|
|
@ -306,7 +307,8 @@ static void tap_packet_debug(struct iphdr *iph, struct ipv6hdr *ip6h,
|
|||
*
|
||||
* Return: count of packets consumed by handlers
|
||||
*/
|
||||
static int tap4_handler(struct ctx *c, struct pool *in, struct timespec *now)
|
||||
static int tap4_handler(struct ctx *c, const struct pool *in,
|
||||
const struct timespec *now)
|
||||
{
|
||||
unsigned int i, j, seq_count;
|
||||
struct tap4_l4_t *seq;
|
||||
|
|
@ -458,7 +460,8 @@ append:
|
|||
*
|
||||
* Return: count of packets consumed by handlers
|
||||
*/
|
||||
static int tap6_handler(struct ctx *c, struct pool *in, struct timespec *now)
|
||||
static int tap6_handler(struct ctx *c, const struct pool *in,
|
||||
const struct timespec *now)
|
||||
{
|
||||
unsigned int i, j, seq_count = 0;
|
||||
struct tap6_l4_t *seq;
|
||||
|
|
@ -618,7 +621,7 @@ append:
|
|||
*
|
||||
* Return: -ECONNRESET on receive error, 0 otherwise
|
||||
*/
|
||||
static int tap_handler_passt(struct ctx *c, struct timespec *now)
|
||||
static int tap_handler_passt(struct ctx *c, const struct timespec *now)
|
||||
{
|
||||
struct ethhdr *eh;
|
||||
ssize_t n, rem;
|
||||
|
|
@ -706,7 +709,7 @@ next:
|
|||
*
|
||||
* Return: -ECONNRESET on receive error, 0 otherwise
|
||||
*/
|
||||
static int tap_handler_pasta(struct ctx *c, struct timespec *now)
|
||||
static int tap_handler_pasta(struct ctx *c, const struct timespec *now)
|
||||
{
|
||||
ssize_t n = 0, len;
|
||||
int ret;
|
||||
|
|
@ -946,7 +949,8 @@ void tap_sock_init(struct ctx *c)
|
|||
* @events: epoll events
|
||||
* @now: Current timestamp, can be NULL on EPOLLERR
|
||||
*/
|
||||
void tap_handler(struct ctx *c, int fd, uint32_t events, struct timespec *now)
|
||||
void tap_handler(struct ctx *c, int fd, uint32_t events,
|
||||
const struct timespec *now)
|
||||
{
|
||||
if (fd == c->fd_tap_listen && events == EPOLLIN) {
|
||||
tap_sock_unix_new(c);
|
||||
|
|
|
|||
9
tap.h
9
tap.h
|
|
@ -6,10 +6,11 @@
|
|||
#ifndef TAP_H
|
||||
#define TAP_H
|
||||
|
||||
void tap_ip_send(struct ctx *c, struct in6_addr *src, uint8_t proto,
|
||||
char *in, size_t len, uint32_t flow);
|
||||
int tap_send(struct ctx *c, void *data, size_t len, int vnet_pre);
|
||||
void tap_handler(struct ctx *c, int fd, uint32_t events, struct timespec *now);
|
||||
void tap_ip_send(const struct ctx *c, const struct in6_addr *src, uint8_t proto,
|
||||
const char *in, size_t len, uint32_t flow);
|
||||
int tap_send(const struct ctx *c, const void *data, size_t len, int vnet_pre);
|
||||
void tap_handler(struct ctx *c, int fd, uint32_t events,
|
||||
const struct timespec *now);
|
||||
void tap_sock_init(struct ctx *c);
|
||||
|
||||
#endif /* TAP_H */
|
||||
|
|
|
|||
93
tcp.c
93
tcp.c
|
|
@ -713,7 +713,7 @@ static uint32_t tcp_conn_epoll_events(uint8_t events, uint8_t conn_flags)
|
|||
return EPOLLRDHUP;
|
||||
}
|
||||
|
||||
static void conn_flag_do(struct ctx *c, struct tcp_conn *conn,
|
||||
static void conn_flag_do(const struct ctx *c, struct tcp_conn *conn,
|
||||
unsigned long flag);
|
||||
#define conn_flag(c, conn, flag) \
|
||||
do { \
|
||||
|
|
@ -728,7 +728,7 @@ static void conn_flag_do(struct ctx *c, struct tcp_conn *conn,
|
|||
*
|
||||
* Return: 0 on success, negative error code on failure (not on deletion)
|
||||
*/
|
||||
static int tcp_epoll_ctl(struct ctx *c, struct tcp_conn *conn)
|
||||
static int tcp_epoll_ctl(const struct ctx *c, struct tcp_conn *conn)
|
||||
{
|
||||
int m = (conn->flags & IN_EPOLL) ? EPOLL_CTL_MOD : EPOLL_CTL_ADD;
|
||||
union epoll_ref ref = { .r.proto = IPPROTO_TCP, .r.s = conn->sock,
|
||||
|
|
@ -773,7 +773,7 @@ static int tcp_epoll_ctl(struct ctx *c, struct tcp_conn *conn)
|
|||
*
|
||||
* #syscalls timerfd_create timerfd_settime
|
||||
*/
|
||||
static void tcp_timer_ctl(struct ctx *c, struct tcp_conn *conn)
|
||||
static void tcp_timer_ctl(const struct ctx *c, struct tcp_conn *conn)
|
||||
{
|
||||
struct itimerspec it = { { 0 }, { 0 } };
|
||||
|
||||
|
|
@ -829,7 +829,7 @@ static void tcp_timer_ctl(struct ctx *c, struct tcp_conn *conn)
|
|||
* @conn: Connection pointer
|
||||
* @flag: Flag to set, or ~flag to unset
|
||||
*/
|
||||
static void conn_flag_do(struct ctx *c, struct tcp_conn *conn,
|
||||
static void conn_flag_do(const struct ctx *c, struct tcp_conn *conn,
|
||||
unsigned long flag)
|
||||
{
|
||||
if (flag & (flag - 1)) {
|
||||
|
|
@ -863,7 +863,7 @@ static void conn_flag_do(struct ctx *c, struct tcp_conn *conn,
|
|||
* @conn: Connection pointer
|
||||
* @event: Connection event
|
||||
*/
|
||||
static void conn_event_do(struct ctx *c, struct tcp_conn *conn,
|
||||
static void conn_event_do(const struct ctx *c, struct tcp_conn *conn,
|
||||
unsigned long event)
|
||||
{
|
||||
int prev, new, num = fls(event);
|
||||
|
|
@ -943,7 +943,7 @@ void tcp_remap_to_init(in_port_t port, in_port_t delta)
|
|||
*
|
||||
* Return: 1 if destination is in low RTT table, 0 otherwise
|
||||
*/
|
||||
static int tcp_rtt_dst_low(struct tcp_conn *conn)
|
||||
static int tcp_rtt_dst_low(const struct tcp_conn *conn)
|
||||
{
|
||||
int i;
|
||||
|
||||
|
|
@ -959,7 +959,8 @@ static int tcp_rtt_dst_low(struct tcp_conn *conn)
|
|||
* @conn: Connection pointer
|
||||
* @tinfo: Pointer to struct tcp_info for socket
|
||||
*/
|
||||
static void tcp_rtt_dst_check(struct tcp_conn *conn, struct tcp_info *tinfo)
|
||||
static void tcp_rtt_dst_check(const struct tcp_conn *conn,
|
||||
const struct tcp_info *tinfo)
|
||||
{
|
||||
#ifdef HAS_MIN_RTT
|
||||
int i, hole = -1;
|
||||
|
|
@ -1014,7 +1015,7 @@ static void tcp_get_sndbuf(struct tcp_conn *conn)
|
|||
* tcp_sock_set_bufsize() - Set SO_RCVBUF and SO_SNDBUF to maximum values
|
||||
* @s: Socket, can be -1 to avoid check in the caller
|
||||
*/
|
||||
void tcp_sock_set_bufsize(struct ctx *c, int s)
|
||||
void tcp_sock_set_bufsize(const struct ctx *c, int s)
|
||||
{
|
||||
int v = INT_MAX / 2; /* Kernel clamps and rounds, no need to check */
|
||||
|
||||
|
|
@ -1086,7 +1087,7 @@ static void tcp_update_check_tcp6(struct tcp6_l2_buf_t *buf)
|
|||
* @eth_s: Ethernet source address, NULL if unchanged
|
||||
* @ip_da: Pointer to IPv4 destination address, NULL if unchanged
|
||||
*/
|
||||
void tcp_update_l2_buf(unsigned char *eth_d, unsigned char *eth_s,
|
||||
void tcp_update_l2_buf(const unsigned char *eth_d, const unsigned char *eth_s,
|
||||
const uint32_t *ip_da)
|
||||
{
|
||||
int i;
|
||||
|
|
@ -1209,8 +1210,8 @@ static void tcp_sock6_iov_init(void)
|
|||
*
|
||||
* Return: option value, meaningful for up to 4 bytes, -1 if not found
|
||||
*/
|
||||
static int tcp_opt_get(char *opts, size_t len, uint8_t type_find,
|
||||
uint8_t *optlen_set, char **value_set)
|
||||
static int tcp_opt_get(const char *opts, size_t len, uint8_t type_find,
|
||||
uint8_t *optlen_set, const char **value_set)
|
||||
{
|
||||
uint8_t type, optlen;
|
||||
|
||||
|
|
@ -1263,7 +1264,7 @@ static int tcp_opt_get(char *opts, size_t len, uint8_t type_find,
|
|||
*
|
||||
* Return: 1 on match, 0 otherwise
|
||||
*/
|
||||
static int tcp_hash_match(struct tcp_conn *conn, int af, void *addr,
|
||||
static int tcp_hash_match(const struct tcp_conn *conn, int af, const void *addr,
|
||||
in_port_t tap_port, in_port_t sock_port)
|
||||
{
|
||||
if (af == AF_INET && CONN_V4(conn) &&
|
||||
|
|
@ -1292,7 +1293,7 @@ static int tcp_hash_match(struct tcp_conn *conn, int af, void *addr,
|
|||
#if TCP_HASH_NOINLINE
|
||||
__attribute__((__noinline__)) /* See comment in Makefile */
|
||||
#endif
|
||||
static unsigned int tcp_hash(struct ctx *c, int af, void *addr,
|
||||
static unsigned int tcp_hash(const struct ctx *c, int af, const void *addr,
|
||||
in_port_t tap_port, in_port_t sock_port)
|
||||
{
|
||||
uint64_t b = 0;
|
||||
|
|
@ -1329,8 +1330,8 @@ static unsigned int tcp_hash(struct ctx *c, int af, void *addr,
|
|||
* @af: Address family, AF_INET or AF_INET6
|
||||
* @addr: Remote address, pointer to sin_addr or sin6_addr
|
||||
*/
|
||||
static void tcp_hash_insert(struct ctx *c, struct tcp_conn *conn,
|
||||
int af, void *addr)
|
||||
static void tcp_hash_insert(const struct ctx *c, struct tcp_conn *conn,
|
||||
int af, const void *addr)
|
||||
{
|
||||
int b;
|
||||
|
||||
|
|
@ -1347,7 +1348,7 @@ static void tcp_hash_insert(struct ctx *c, struct tcp_conn *conn,
|
|||
* tcp_hash_remove() - Drop connection from hash table, chain unlink
|
||||
* @conn: Connection pointer
|
||||
*/
|
||||
static void tcp_hash_remove(struct tcp_conn *conn)
|
||||
static void tcp_hash_remove(const struct tcp_conn *conn)
|
||||
{
|
||||
struct tcp_conn *entry, *prev = NULL;
|
||||
int b = conn->hash_bucket;
|
||||
|
|
@ -1404,7 +1405,8 @@ static void tcp_hash_update(struct tcp_conn *old, struct tcp_conn *new)
|
|||
*
|
||||
* Return: connection pointer, if found, -ENOENT otherwise
|
||||
*/
|
||||
static struct tcp_conn *tcp_hash_lookup(struct ctx *c, int af, void *addr,
|
||||
static struct tcp_conn *tcp_hash_lookup(const struct ctx *c, int af,
|
||||
const void *addr,
|
||||
in_port_t tap_port, in_port_t sock_port)
|
||||
{
|
||||
int b = tcp_hash(c, af, addr, tap_port, sock_port);
|
||||
|
|
@ -1480,7 +1482,7 @@ static void tcp_rst_do(struct ctx *c, struct tcp_conn *conn);
|
|||
*
|
||||
* Return: 0 on success, negative error code on failure (tap reset possible)
|
||||
*/
|
||||
static int tcp_l2_buf_write_one(struct ctx *c, struct iovec *iov)
|
||||
static int tcp_l2_buf_write_one(struct ctx *c, const struct iovec *iov)
|
||||
{
|
||||
if (write(c->fd_tap, (char *)iov->iov_base + 4, iov->iov_len - 4) < 0) {
|
||||
debug("tap write: %s", strerror(errno));
|
||||
|
|
@ -1498,7 +1500,8 @@ static int tcp_l2_buf_write_one(struct ctx *c, struct iovec *iov)
|
|||
* @mh: Message header that was partially sent by sendmsg()
|
||||
* @sent: Bytes already sent
|
||||
*/
|
||||
static void tcp_l2_buf_flush_part(struct ctx *c, struct msghdr *mh, size_t sent)
|
||||
static void tcp_l2_buf_flush_part(const struct ctx *c,
|
||||
const struct msghdr *mh, size_t sent)
|
||||
{
|
||||
size_t end = 0, missing;
|
||||
struct iovec *iov;
|
||||
|
|
@ -1625,7 +1628,8 @@ void tcp_defer_handler(struct ctx *c)
|
|||
*
|
||||
* Return: 802.3 length, host order
|
||||
*/
|
||||
static size_t tcp_l2_buf_fill_headers(struct ctx *c, struct tcp_conn *conn,
|
||||
static size_t tcp_l2_buf_fill_headers(const struct ctx *c,
|
||||
const struct tcp_conn *conn,
|
||||
void *p, size_t plen,
|
||||
const uint16_t *check, uint32_t seq)
|
||||
{
|
||||
|
|
@ -1707,7 +1711,7 @@ do { \
|
|||
*
|
||||
* Return: 1 if sequence or window were updated, 0 otherwise
|
||||
*/
|
||||
static int tcp_update_seqack_wnd(struct ctx *c, struct tcp_conn *conn,
|
||||
static int tcp_update_seqack_wnd(const struct ctx *c, struct tcp_conn *conn,
|
||||
int force_seq, struct tcp_info *tinfo)
|
||||
{
|
||||
uint32_t prev_wnd_to_tap = conn->wnd_to_tap << conn->ws_to_tap;
|
||||
|
|
@ -1954,7 +1958,8 @@ static void tcp_rst_do(struct ctx *c, struct tcp_conn *conn)
|
|||
* @opts: Pointer to start of TCP options
|
||||
* @optlen: Bytes in options: caller MUST ensure available length
|
||||
*/
|
||||
static void tcp_get_tap_ws(struct tcp_conn *conn, char *opts, size_t optlen)
|
||||
static void tcp_get_tap_ws(struct tcp_conn *conn,
|
||||
const char *opts, size_t optlen)
|
||||
{
|
||||
int ws = tcp_opt_get(opts, optlen, OPT_WS, NULL, NULL);
|
||||
|
||||
|
|
@ -1970,7 +1975,8 @@ static void tcp_get_tap_ws(struct tcp_conn *conn, char *opts, size_t optlen)
|
|||
* @conn: Connection pointer
|
||||
* @window: Window value, host order, unscaled
|
||||
*/
|
||||
static void tcp_clamp_window(struct ctx *c, struct tcp_conn *conn, unsigned wnd)
|
||||
static void tcp_clamp_window(const struct ctx *c, struct tcp_conn *conn,
|
||||
unsigned wnd)
|
||||
{
|
||||
uint32_t prev_scaled = conn->wnd_from_tap << conn->ws_from_tap;
|
||||
|
||||
|
|
@ -2003,9 +2009,9 @@ static void tcp_clamp_window(struct ctx *c, struct tcp_conn *conn, unsigned wnd)
|
|||
*
|
||||
* Return: initial TCP sequence
|
||||
*/
|
||||
static uint32_t tcp_seq_init(struct ctx *c, int af, void *addr,
|
||||
static uint32_t tcp_seq_init(const struct ctx *c, int af, const void *addr,
|
||||
in_port_t dstport, in_port_t srcport,
|
||||
struct timespec *now)
|
||||
const struct timespec *now)
|
||||
{
|
||||
uint32_t ns, seq = 0;
|
||||
|
||||
|
|
@ -2052,7 +2058,7 @@ static uint32_t tcp_seq_init(struct ctx *c, int af, void *addr,
|
|||
*
|
||||
* Return: socket number if available, negative code if socket creation failed
|
||||
*/
|
||||
static int tcp_conn_new_sock(struct ctx *c, sa_family_t af)
|
||||
static int tcp_conn_new_sock(const struct ctx *c, sa_family_t af)
|
||||
{
|
||||
int *p = af == AF_INET6 ? init_sock_pool6 : init_sock_pool4, i, s = -1;
|
||||
|
||||
|
|
@ -2079,7 +2085,7 @@ static int tcp_conn_new_sock(struct ctx *c, sa_family_t af)
|
|||
}
|
||||
|
||||
/**
|
||||
* tcp_conn_tap_mss() - Get and clamp MSS value advertised by tap/guest
|
||||
* tcp_conn_tap_mss() - Get MSS value advertised by tap/guest
|
||||
* @c: Execution context
|
||||
* @conn: Connection pointer
|
||||
* @opts: Pointer to start of TCP options
|
||||
|
|
@ -2087,8 +2093,9 @@ static int tcp_conn_new_sock(struct ctx *c, sa_family_t af)
|
|||
*
|
||||
* Return: clamped MSS value
|
||||
*/
|
||||
static uint16_t tcp_conn_tap_mss(struct ctx *c, struct tcp_conn *conn,
|
||||
char *opts, size_t optlen)
|
||||
static uint16_t tcp_conn_tap_mss(const struct ctx *c,
|
||||
const struct tcp_conn *conn,
|
||||
const char *opts, size_t optlen)
|
||||
{
|
||||
unsigned int mss;
|
||||
int ret;
|
||||
|
|
@ -2119,9 +2126,9 @@ static uint16_t tcp_conn_tap_mss(struct ctx *c, struct tcp_conn *conn,
|
|||
* @optlen: Bytes in options: caller MUST ensure available length
|
||||
* @now: Current timestamp
|
||||
*/
|
||||
static void tcp_conn_from_tap(struct ctx *c, int af, void *addr,
|
||||
struct tcphdr *th, char *opts, size_t optlen,
|
||||
struct timespec *now)
|
||||
static void tcp_conn_from_tap(struct ctx *c, int af, const void *addr,
|
||||
const struct tcphdr *th, const char *opts,
|
||||
size_t optlen, const struct timespec *now)
|
||||
{
|
||||
struct sockaddr_in addr4 = {
|
||||
.sin_family = AF_INET,
|
||||
|
|
@ -2267,8 +2274,8 @@ static int tcp_sock_consume(struct tcp_conn *conn, uint32_t ack_seq)
|
|||
* @seq: Sequence number to be sent
|
||||
* @now: Current timestamp
|
||||
*/
|
||||
static void tcp_data_to_tap(struct ctx *c, struct tcp_conn *conn, ssize_t plen,
|
||||
int no_csum, uint32_t seq)
|
||||
static void tcp_data_to_tap(struct ctx *c, struct tcp_conn *conn,
|
||||
ssize_t plen, int no_csum, uint32_t seq)
|
||||
{
|
||||
struct iovec *iov;
|
||||
size_t len;
|
||||
|
|
@ -2432,7 +2439,7 @@ zero_len:
|
|||
* #syscalls sendmsg
|
||||
*/
|
||||
static void tcp_data_from_tap(struct ctx *c, struct tcp_conn *conn,
|
||||
struct pool *p)
|
||||
const struct pool *p)
|
||||
{
|
||||
int i, iov_i, ack = 0, fin = 0, retr = 0, keep = -1, partial_send = 0;
|
||||
uint16_t max_ack_seq_wnd = conn->wnd_from_tap;
|
||||
|
|
@ -2628,8 +2635,8 @@ out:
|
|||
* @optlen: Bytes in options: caller MUST ensure available length
|
||||
*/
|
||||
static void tcp_conn_from_sock_finish(struct ctx *c, struct tcp_conn *conn,
|
||||
struct tcphdr *th,
|
||||
char *opts, size_t optlen)
|
||||
const struct tcphdr *th,
|
||||
const char *opts, size_t optlen)
|
||||
{
|
||||
tcp_clamp_window(c, conn, ntohs(th->window));
|
||||
tcp_get_tap_ws(conn, opts, optlen);
|
||||
|
|
@ -2663,8 +2670,8 @@ static void tcp_conn_from_sock_finish(struct ctx *c, struct tcp_conn *conn,
|
|||
*
|
||||
* Return: count of consumed packets
|
||||
*/
|
||||
int tcp_tap_handler(struct ctx *c, int af, void *addr, struct pool *p,
|
||||
struct timespec *now)
|
||||
int tcp_tap_handler(struct ctx *c, int af, const void *addr,
|
||||
const struct pool *p, const struct timespec *now)
|
||||
{
|
||||
struct tcp_conn *conn;
|
||||
size_t optlen, len;
|
||||
|
|
@ -2802,7 +2809,7 @@ static void tcp_connect_finish(struct ctx *c, struct tcp_conn *conn)
|
|||
* @now: Current timestamp
|
||||
*/
|
||||
static void tcp_conn_from_sock(struct ctx *c, union epoll_ref ref,
|
||||
struct timespec *now)
|
||||
const struct timespec *now)
|
||||
{
|
||||
struct sockaddr_storage sa;
|
||||
struct tcp_conn *conn;
|
||||
|
|
@ -2960,7 +2967,7 @@ static void tcp_timer_handler(struct ctx *c, union epoll_ref ref)
|
|||
* @now: Current timestamp
|
||||
*/
|
||||
void tcp_sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
|
||||
struct timespec *now)
|
||||
const struct timespec *now)
|
||||
{
|
||||
struct tcp_conn *conn;
|
||||
|
||||
|
|
@ -3034,7 +3041,7 @@ void tcp_sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
|
|||
* @ns: In pasta mode, if set, bind with loopback address in namespace
|
||||
* @port: Port, host order
|
||||
*/
|
||||
static void tcp_sock_init_one(struct ctx *c, int ns, in_port_t port)
|
||||
static void tcp_sock_init_one(const struct ctx *c, int ns, in_port_t port)
|
||||
{
|
||||
union tcp_epoll_ref tref = { .tcp.listen = 1 };
|
||||
int s;
|
||||
|
|
@ -3404,7 +3411,7 @@ static int tcp_port_rebind(void *arg)
|
|||
* @c: Execution context
|
||||
* @ts: Unused
|
||||
*/
|
||||
void tcp_timer(struct ctx *c, struct timespec *ts)
|
||||
void tcp_timer(struct ctx *c, const struct timespec *ts)
|
||||
{
|
||||
struct tcp_sock_refill_arg refill_arg = { c, 0 };
|
||||
struct tcp_conn *conn;
|
||||
|
|
|
|||
12
tcp.h
12
tcp.h
|
|
@ -17,15 +17,15 @@
|
|||
struct ctx;
|
||||
|
||||
void tcp_sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
|
||||
struct timespec *now);
|
||||
int tcp_tap_handler(struct ctx *c, int af, void *addr, struct pool *p,
|
||||
struct timespec *now);
|
||||
const struct timespec *now);
|
||||
int tcp_tap_handler(struct ctx *c, int af, const void *addr,
|
||||
const struct pool *p, const struct timespec *now);
|
||||
int tcp_sock_init(struct ctx *c);
|
||||
void tcp_timer(struct ctx *c, struct timespec *ts);
|
||||
void tcp_timer(struct ctx *c, const struct timespec *ts);
|
||||
void tcp_defer_handler(struct ctx *c);
|
||||
|
||||
void tcp_sock_set_bufsize(struct ctx *c, int s);
|
||||
void tcp_update_l2_buf(unsigned char *eth_d, unsigned char *eth_s,
|
||||
void tcp_sock_set_bufsize(const struct ctx *c, int s);
|
||||
void tcp_update_l2_buf(const unsigned char *eth_d, const unsigned char *eth_s,
|
||||
const uint32_t *ip_da);
|
||||
void tcp_remap_to_tap(in_port_t port, in_port_t delta);
|
||||
void tcp_remap_to_init(in_port_t port, in_port_t delta);
|
||||
|
|
|
|||
20
tcp_splice.c
20
tcp_splice.c
|
|
@ -156,7 +156,8 @@ static void tcp_splice_conn_epoll_events(uint16_t events,
|
|||
}
|
||||
|
||||
static void tcp_splice_destroy(struct ctx *c, struct tcp_splice_conn *conn);
|
||||
static int tcp_splice_epoll_ctl(struct ctx *c, struct tcp_splice_conn *conn);
|
||||
static int tcp_splice_epoll_ctl(const struct ctx *c,
|
||||
struct tcp_splice_conn *conn);
|
||||
|
||||
/**
|
||||
* conn_flag_do() - Set/unset given flag, log, update epoll on CLOSING flag
|
||||
|
|
@ -164,7 +165,7 @@ static int tcp_splice_epoll_ctl(struct ctx *c, struct tcp_splice_conn *conn);
|
|||
* @conn: Connection pointer
|
||||
* @flag: Flag to set, or ~flag to unset
|
||||
*/
|
||||
static void conn_flag_do(struct ctx *c, struct tcp_splice_conn *conn,
|
||||
static void conn_flag_do(const struct ctx *c, struct tcp_splice_conn *conn,
|
||||
unsigned long flag)
|
||||
{
|
||||
if (flag & (flag - 1)) {
|
||||
|
|
@ -201,7 +202,8 @@ static void conn_flag_do(struct ctx *c, struct tcp_splice_conn *conn,
|
|||
*
|
||||
* Return: 0 on success, negative error code on failure (not on deletion)
|
||||
*/
|
||||
static int tcp_splice_epoll_ctl(struct ctx *c, struct tcp_splice_conn *conn)
|
||||
static int tcp_splice_epoll_ctl(const struct ctx *c,
|
||||
struct tcp_splice_conn *conn)
|
||||
{
|
||||
int m = (conn->flags & IN_EPOLL) ? EPOLL_CTL_MOD : EPOLL_CTL_ADD;
|
||||
union epoll_ref ref_a = { .r.proto = IPPROTO_TCP, .r.s = conn->a,
|
||||
|
|
@ -243,7 +245,7 @@ delete:
|
|||
* @conn: Connection pointer
|
||||
* @event: Connection event
|
||||
*/
|
||||
static void conn_event_do(struct ctx *c, struct tcp_splice_conn *conn,
|
||||
static void conn_event_do(const struct ctx *c, struct tcp_splice_conn *conn,
|
||||
unsigned long event)
|
||||
{
|
||||
if (event & (event - 1)) {
|
||||
|
|
@ -348,7 +350,7 @@ static void tcp_splice_destroy(struct ctx *c, struct tcp_splice_conn *conn)
|
|||
*
|
||||
* Return: 0 on success, -EIO on failure
|
||||
*/
|
||||
static int tcp_splice_connect_finish(struct ctx *c,
|
||||
static int tcp_splice_connect_finish(const struct ctx *c,
|
||||
struct tcp_splice_conn *conn)
|
||||
{
|
||||
int i;
|
||||
|
|
@ -393,7 +395,7 @@ static int tcp_splice_connect_finish(struct ctx *c,
|
|||
*
|
||||
* Return: 0 for connect() succeeded or in progress, negative value on error
|
||||
*/
|
||||
static int tcp_splice_connect(struct ctx *c, struct tcp_splice_conn *conn,
|
||||
static int tcp_splice_connect(const struct ctx *c, struct tcp_splice_conn *conn,
|
||||
int s, in_port_t port)
|
||||
{
|
||||
int sock_conn = (s >= 0) ? s : socket(CONN_V6(conn) ? AF_INET6 :
|
||||
|
|
@ -460,7 +462,7 @@ static int tcp_splice_connect(struct ctx *c, struct tcp_splice_conn *conn,
|
|||
* @ret: Return value of tcp_splice_connect_ns()
|
||||
*/
|
||||
struct tcp_splice_connect_ns_arg {
|
||||
struct ctx *c;
|
||||
const struct ctx *c;
|
||||
struct tcp_splice_conn *conn;
|
||||
in_port_t port;
|
||||
int ret;
|
||||
|
|
@ -490,7 +492,7 @@ static int tcp_splice_connect_ns(void *arg)
|
|||
*
|
||||
* Return: return code from connect()
|
||||
*/
|
||||
static int tcp_splice_new(struct ctx *c, struct tcp_splice_conn *conn,
|
||||
static int tcp_splice_new(const struct ctx *c, struct tcp_splice_conn *conn,
|
||||
in_port_t port)
|
||||
{
|
||||
struct tcp_splice_connect_ns_arg ns_arg = { c, conn, port, 0 };
|
||||
|
|
@ -800,7 +802,7 @@ smaller:
|
|||
* tcp_splice_pipe_refill() - Refill pool of pre-opened pipes
|
||||
* @c: Execution context
|
||||
*/
|
||||
static void tcp_splice_pipe_refill(struct ctx *c)
|
||||
static void tcp_splice_pipe_refill(const struct ctx *c)
|
||||
{
|
||||
int i;
|
||||
|
||||
|
|
|
|||
34
udp.c
34
udp.c
|
|
@ -306,7 +306,7 @@ static void udp_update_check4(struct udp4_l2_buf_t *buf)
|
|||
* @eth_s: Ethernet source address, NULL if unchanged
|
||||
* @ip_da: Pointer to IPv4 destination address, NULL if unchanged
|
||||
*/
|
||||
void udp_update_l2_buf(unsigned char *eth_d, unsigned char *eth_s,
|
||||
void udp_update_l2_buf(const unsigned char *eth_d, const unsigned char *eth_s,
|
||||
const uint32_t *ip_da)
|
||||
{
|
||||
int i;
|
||||
|
|
@ -429,7 +429,7 @@ static void udp_sock6_iov_init(void)
|
|||
*
|
||||
* #syscalls:pasta getsockname
|
||||
*/
|
||||
int udp_splice_connect(struct ctx *c, int v6, int bound_sock,
|
||||
int udp_splice_connect(const struct ctx *c, int v6, int bound_sock,
|
||||
in_port_t src, in_port_t dst, int splice)
|
||||
{
|
||||
struct epoll_event ev = { .events = EPOLLIN | EPOLLRDHUP | EPOLLHUP };
|
||||
|
|
@ -519,7 +519,7 @@ fail:
|
|||
* @s: Newly created socket or negative error code
|
||||
*/
|
||||
struct udp_splice_connect_ns_arg {
|
||||
struct ctx *c;
|
||||
const struct ctx *c;
|
||||
int v6;
|
||||
int bound_sock;
|
||||
in_port_t src;
|
||||
|
|
@ -555,8 +555,8 @@ static int udp_splice_connect_ns(void *arg)
|
|||
* @events: epoll events bitmap
|
||||
* @now: Current timestamp
|
||||
*/
|
||||
static void udp_sock_handler_splice(struct ctx *c, union epoll_ref ref,
|
||||
uint32_t events, struct timespec *now)
|
||||
static void udp_sock_handler_splice(const struct ctx *c, union epoll_ref ref,
|
||||
uint32_t events, const struct timespec *now)
|
||||
{
|
||||
in_port_t src, dst = ref.r.p.udp.udp.port, send_dst = 0;
|
||||
struct msghdr *mh = &udp_mmh_recv[0].msg_hdr;
|
||||
|
|
@ -671,9 +671,10 @@ static void udp_sock_handler_splice(struct ctx *c, union epoll_ref ref,
|
|||
* @msg_len: Length of current message being prepared for sending
|
||||
* @now: Current timestamp
|
||||
*/
|
||||
static void udp_sock_fill_data_v4(struct ctx *c, int n, union epoll_ref ref,
|
||||
static void udp_sock_fill_data_v4(const struct ctx *c, int n,
|
||||
union epoll_ref ref,
|
||||
int *msg_idx, int *msg_bufs, ssize_t *msg_len,
|
||||
struct timespec *now)
|
||||
const struct timespec *now)
|
||||
{
|
||||
struct msghdr *mh = &udp6_l2_mh_tap[*msg_idx].msg_hdr;
|
||||
struct udp4_l2_buf_t *b = &udp4_l2_buf[n];
|
||||
|
|
@ -746,9 +747,10 @@ static void udp_sock_fill_data_v4(struct ctx *c, int n, union epoll_ref ref,
|
|||
* @msg_len: Length of current message being prepared for sending
|
||||
* @now: Current timestamp
|
||||
*/
|
||||
static void udp_sock_fill_data_v6(struct ctx *c, int n, union epoll_ref ref,
|
||||
static void udp_sock_fill_data_v6(const struct ctx *c, int n,
|
||||
union epoll_ref ref,
|
||||
int *msg_idx, int *msg_bufs, ssize_t *msg_len,
|
||||
struct timespec *now)
|
||||
const struct timespec *now)
|
||||
{
|
||||
struct msghdr *mh = &udp6_l2_mh_tap[*msg_idx].msg_hdr;
|
||||
struct udp6_l2_buf_t *b = &udp6_l2_buf[n];
|
||||
|
|
@ -845,8 +847,8 @@ static void udp_sock_fill_data_v6(struct ctx *c, int n, union epoll_ref ref,
|
|||
* #syscalls recvmmsg
|
||||
* #syscalls:passt sendmmsg sendmsg
|
||||
*/
|
||||
void udp_sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
|
||||
struct timespec *now)
|
||||
void udp_sock_handler(const struct ctx *c, union epoll_ref ref, uint32_t events,
|
||||
const struct timespec *now)
|
||||
{
|
||||
ssize_t n, msg_len = 0, missing = 0;
|
||||
int msg_bufs = 0, msg_i = 0, ret;
|
||||
|
|
@ -958,8 +960,8 @@ void udp_sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
|
|||
*
|
||||
* #syscalls sendmmsg
|
||||
*/
|
||||
int udp_tap_handler(struct ctx *c, int af, void *addr, struct pool *p,
|
||||
struct timespec *now)
|
||||
int udp_tap_handler(struct ctx *c, int af, const void *addr,
|
||||
const struct pool *p, const struct timespec *now)
|
||||
{
|
||||
struct mmsghdr mm[UIO_MAXIOV] = { 0 };
|
||||
struct iovec m[UIO_MAXIOV];
|
||||
|
|
@ -1180,7 +1182,7 @@ static void udp_splice_iov_init(void)
|
|||
*
|
||||
* Return: 0 on success, -1 on failure
|
||||
*/
|
||||
int udp_sock_init(struct ctx *c)
|
||||
int udp_sock_init(const struct ctx *c)
|
||||
{
|
||||
union udp_epoll_ref uref = { .udp.bound = 1 };
|
||||
int dst, s;
|
||||
|
|
@ -1246,7 +1248,7 @@ int udp_sock_init(struct ctx *c)
|
|||
* @ts: Timestamp from caller
|
||||
*/
|
||||
static void udp_timer_one(struct ctx *c, int v6, enum udp_act_type type,
|
||||
in_port_t port, struct timespec *ts)
|
||||
in_port_t port, const struct timespec *ts)
|
||||
{
|
||||
struct udp_splice_port *sp;
|
||||
struct udp_tap_port *tp;
|
||||
|
|
@ -1292,7 +1294,7 @@ static void udp_timer_one(struct ctx *c, int v6, enum udp_act_type type,
|
|||
* @c: Execution context
|
||||
* @ts: Timestamp from caller
|
||||
*/
|
||||
void udp_timer(struct ctx *c, struct timespec *ts)
|
||||
void udp_timer(struct ctx *c, const struct timespec *ts)
|
||||
{
|
||||
int n, t, v6 = 0;
|
||||
unsigned int i;
|
||||
|
|
|
|||
14
udp.h
14
udp.h
|
|
@ -8,13 +8,13 @@
|
|||
|
||||
#define UDP_TIMER_INTERVAL 1000 /* ms */
|
||||
|
||||
void udp_sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
|
||||
struct timespec *now);
|
||||
int udp_tap_handler(struct ctx *c, int af, void *addr, struct pool *p,
|
||||
struct timespec *now);
|
||||
int udp_sock_init(struct ctx *c);
|
||||
void udp_timer(struct ctx *c, struct timespec *ts);
|
||||
void udp_update_l2_buf(unsigned char *eth_d, unsigned char *eth_s,
|
||||
void udp_sock_handler(const struct ctx *c, union epoll_ref ref, uint32_t events,
|
||||
const struct timespec *now);
|
||||
int udp_tap_handler(struct ctx *c, int af, const void *addr,
|
||||
const struct pool *p, const struct timespec *now);
|
||||
int udp_sock_init(const struct ctx *c);
|
||||
void udp_timer(struct ctx *c, const struct timespec *ts);
|
||||
void udp_update_l2_buf(const unsigned char *eth_d, const unsigned char *eth_s,
|
||||
const uint32_t *ip_da);
|
||||
void udp_remap_to_tap(in_port_t port, in_port_t delta);
|
||||
void udp_remap_to_init(in_port_t port, in_port_t delta);
|
||||
|
|
|
|||
8
util.c
8
util.c
|
|
@ -172,7 +172,7 @@ void passt_vsyslog(int pri, const char *format, va_list ap)
|
|||
*
|
||||
* Return: pointer to L4 header, NULL if not found
|
||||
*/
|
||||
char *ipv6_l4hdr(struct pool *p, int index, size_t offset, uint8_t *proto,
|
||||
char *ipv6_l4hdr(const struct pool *p, int index, size_t offset, uint8_t *proto,
|
||||
size_t *dlen)
|
||||
{
|
||||
struct ipv6_opt_hdr *o;
|
||||
|
|
@ -223,7 +223,7 @@ found:
|
|||
*
|
||||
* Return: newly created socket, -1 on error
|
||||
*/
|
||||
int sock_l4(struct ctx *c, int af, uint8_t proto, uint16_t port,
|
||||
int sock_l4(const struct ctx *c, int af, uint8_t proto, uint16_t port,
|
||||
enum bind_type bind_addr, uint32_t data)
|
||||
{
|
||||
union epoll_ref ref = { .r.proto = proto, .r.p.data = data };
|
||||
|
|
@ -357,7 +357,7 @@ void sock_probe_mem(struct ctx *c)
|
|||
*
|
||||
* Return: difference in milliseconds
|
||||
*/
|
||||
int timespec_diff_ms(struct timespec *a, struct timespec *b)
|
||||
int timespec_diff_ms(const struct timespec *a, const struct timespec *b)
|
||||
{
|
||||
if (a->tv_nsec < b->tv_nsec) {
|
||||
return (b->tv_nsec - a->tv_nsec) / 1000000 +
|
||||
|
|
@ -540,7 +540,7 @@ void drop_caps(void)
|
|||
*
|
||||
* #syscalls:pasta setns
|
||||
*/
|
||||
int ns_enter(struct ctx *c)
|
||||
int ns_enter(const struct ctx *c)
|
||||
{
|
||||
if (!c->netns_only &&
|
||||
c->pasta_userns_fd != -1 &&
|
||||
|
|
|
|||
8
util.h
8
util.h
|
|
@ -199,12 +199,12 @@ __attribute__ ((weak)) int ffsl(long int i) { return __builtin_ffsl(i); }
|
|||
void __openlog(const char *ident, int option, int facility);
|
||||
void passt_vsyslog(int pri, const char *format, va_list ap);
|
||||
void __setlogmask(int mask);
|
||||
char *ipv6_l4hdr(struct pool *p, int index, size_t offset, uint8_t *proto,
|
||||
char *ipv6_l4hdr(const struct pool *p, int index, size_t offset, uint8_t *proto,
|
||||
size_t *dlen);
|
||||
int sock_l4(struct ctx *c, int af, uint8_t proto, uint16_t port,
|
||||
int sock_l4(const struct ctx *c, int af, uint8_t proto, uint16_t port,
|
||||
enum bind_type bind_addr, uint32_t data);
|
||||
void sock_probe_mem(struct ctx *c);
|
||||
int timespec_diff_ms(struct timespec *a, struct timespec *b);
|
||||
int timespec_diff_ms(const struct timespec *a, const struct timespec *b);
|
||||
void bitmap_set(uint8_t *map, int bit);
|
||||
void bitmap_clear(uint8_t *map, int bit);
|
||||
int bitmap_isset(const uint8_t *map, int bit);
|
||||
|
|
@ -212,7 +212,7 @@ char *line_read(char *buf, size_t len, int fd);
|
|||
void procfs_scan_listen(struct ctx *c, uint8_t proto, int ip_version, int ns,
|
||||
uint8_t *map, uint8_t *exclude);
|
||||
void drop_caps(void);
|
||||
int ns_enter(struct ctx *c);
|
||||
int ns_enter(const struct ctx *c);
|
||||
void write_pidfile(int fd, pid_t pid);
|
||||
int __daemon(int pidfile_fd, int devnull_fd);
|
||||
int fls(unsigned long x);
|
||||
|
|
|
|||
Loading…
Reference in a new issue